cw_bugs : Messages : 1529-1558 of 1895

#1529

From: "k5est" <k5est@...>
Date: Thu Jan 20, 2011 2:02 pm
Subject: Re: Another way to slow a bug

Hi Rich, very interesting BugNapper! Its
nice but toooo much trouble for me to do all
that stuff. Been using wooded clothes pins for
30 years to slow down a bug.....or just switch
to a straight key.....grin!
73....Walter - K5EST - Missouri


--- In cw_bugs@yahoogroups.com, "richard_meiss" <wb9lpu@...> wrote:
>>      I have called the device the BugNapper, because all of the

Reply | Messages in this Topic (6)

#1530

From: Richard Meiss <wb9lpu@...>
Date: Thu Jan 20, 2011 3:32 pm
Subject: Re: Re: Another way to slow a bug

richard_meiss

Send Email

Hi, Walter -

     Whatever works for you is best. This was something that has been running around in my mind for some time, and I just had to try it out. Yes, it is more complicated than the more direct methods, but it was fun to work out the physics. Especially since I've been playing with magnets and springs most of my life.
     But your way is also quite effective - as a matter of fact, you can just use the dash paddle and skip the straight key altogether!
     So, to each his own. Hope to work you on the air someday.

     73 de Rich, WB9LPU

-----Original Message-----
From: k5est
Sent: Jan 20, 2011 9:02 AM
To: cw_bugs@yahoogroups.com
Subject: [cw_bugs] Re: Another way to slow a bug

Hi Rich, very interesting BugNapper! Its
nice but toooo much trouble for me to do all
that stuff. Been using wooded clothes pins for
30 years to slow down a bug.....or just switch
to a straight key.....grin!
73....Walter - K5EST - Missouri

--- In cw_bugs@yahoogroups.com, "richard_meiss" <wb9lpu@...> wrote:
>> I have called the device the BugNapper, because all of the

Reply | Messages in this Topic (6)

#1531

From: Tony Morgan <1desertdweller@...>
Date: Fri Jan 21, 2011 1:47 am
Subject: Slow Down Vibroplex

w7go

Send Email

Just ran across this on ebay:

http://cgi.ebay.com/Slow-Down-Vibroplex-Telegraph-Key-Morse-Code-Ham-Radio-/1206\
73220026?pt=LH_DefaultDomain_0&hash=item1c18af35ba

Anyone care to comment on this item?

73,

Tony W7GO

Reply | Messages in this Topic (5)

#1532

From: "richard_meiss" <wb9lpu@...>
Date: Fri Jan 21, 2011 2:19 am
Subject: Re: Slow Down Vibroplex

richard_meiss

Send Email

Hi, Tony -

      I met this fellow (at least I think that was the same person) at the Fort
Wayne (IN) Hamfest in November.  He had some samples there, and they were nicely
finished and worked well, and he was willing to "talk shop".
      Actually, its hard for the mass/extension approach not to work.  What may
make a difference for some folks how "finished" it looks and how easy is it to
adjust (and whether it requires any permanent changes to the bug).  This device
passes all these tests.

      73 de Rich, WB9LPU

--- In cw_bugs@yahoogroups.com, Tony Morgan <1desertdweller@...> wrote:
>
> Just ran across this on ebay:
>
>
http://cgi.ebay.com/Slow-Down-Vibroplex-Telegraph-Key-Morse-Code-Ham-Radio-/1206\
73220026?pt=LH_DefaultDomain_0&hash=item1c18af35ba
>
> Anyone care to comment on this item?
>
> 73,
>
> Tony W7GO
>

Reply | Messages in this Topic (5)

#1533

From: "TroyW6HV" <w6hv@...>
Date: Fri Jan 21, 2011 2:43 am
Subject: Re: Slow Down Vibroplex

w6hv

Send Email

You can make your own very easily using brass rod and brass tubing from a
hobby shop for very little cost. I have several on my bugs. I have a picture
of one I made in the photo section.

73,
Troy, W6HV

-----Original Message-----
From: Tony Morgan
Sent: Thursday, January 20, 2011 5:47 PM
To: cw_bugs@yahoogroups.com
Subject: [cw_bugs] Slow Down Vibroplex

Just ran across this on ebay:

http://cgi.ebay.com/Slow-Down-Vibroplex-Telegraph-Key-Morse-Code-Ham-Radio-/1206\
73220026?pt=LH_DefaultDomain_0&hash=item1c18af35ba

Anyone care to comment on this item?

73,

Tony W7GO






------------------------------------

Yahoo! Groups Links

Reply | Messages in this Topic (5)

#1534

From: Pete Ferrand <petef@...>
Date: Fri Jan 21, 2011 3:11 am
Subject: Re: Slow Down Vibroplex

cr88a

Send Email

>From: TroyW6HV <w6hv@...>
>Sent: Jan 20, 2011 8:43 PM

>You can make your own very easily using brass rod and brass tubing from a

I made one as well out of a common electrical grounding bar. Cheap and the
screws are included. Just cut a couple pieces off the aluminum bar. I used a
knitting needle for the extra shaft but peg hooks (for hanging stuff on a
perforated board) can be cut down and work great.

See the photo album under my call.

73,
-Pete
WB2QLL

Reply | Messages in this Topic (5)

#1535

From: wz4cw@...
Date: Fri Jan 21, 2011 10:29 pm
Subject: Re: Slow Down Vibroplex

ares1934

Send Email

This device seems to be similar to the "Extend-A-Dot" bug slower. To increase the period of oscillation of a bug pendulum, either more weight can be added to the pendulum, or weight can be moved farther away from the pivot point, or both. This device accomplishes that, so it should work well. The only slight negative is that any device that attaches to the pendulum rod with a "set screw" has the possibility of marring the pendulum rod. Note: Most Vibroplex weight screws have a nylon tip or a rounded tip.

Carl WZ4CW
73 SKCC 918 FISTS 13491

----- Original Message -----
From: "Tony Morgan" <1desertdweller@...>
To: "cw bugs" <cw_bugs@yahoogroups.com>
Sent: Thursday, January 20, 2011 8:47:05 PM
Subject: [cw_bugs] Slow Down Vibroplex

Just ran across this on ebay:

http://cgi.ebay.com/Slow-Down-Vibroplex-Telegraph-Key-Morse-Code-Ham-Radio-/120673220026?pt=LH_DefaultDomain_0&hash=item1c18af35ba

Anyone care to comment on this item?

73,

Tony W7GO

Reply | Messages in this Topic (5)

#1536

From: wz4cw@...
Date: Fri Jan 21, 2011 11:08 pm
Subject: Re: Another way to slow a bug

ares1934

Send Email

I've examined the write up and photos of this device, and to me BugNapper seems to be pure genious. It's obvious that it will slow the oscillation of a bug. The thing that makes it so inovative, is that it can be adjusted quickly and easily. By simply turning a screw, the speed can be adjusted any amount, faster or slower. Fantastic.

Now to speak more about "slowing" a bug. Some people feel that to slow a bug "everything" must be slowed. Instead of the bug operating at say 20-25 WPM, by adding weight, it is slowed to 10 WPM for example. The effect of this is that while the overall speed is 10 WPM, the "character" speed is also 10 WPM. This may not be the best way to "learn" and to "send" CW.

Other people are of the opinion that while the overall speed needs to be slowed, the character speed should remain in the vicinity of 20 WPM. To achieve an overall speed reduction, the "spaces" between characters and words are lengthened to give the overall speed desired. If this method of "slowing" is followed, the effort to slow a bug is greatly diminished since it only needs to be slowed to 20 WPM. Many people, as well as W1AW code practice, seem to subscribe to this approach.

Pick the method that works for you and Good Luck- Carl WZ4CW

73 SKCC 918 FISTS 13491

----- Original Message -----
From: "richard_meiss" <wb9lpu@...>
To: "cw bugs" <cw_bugs@yahoogroups.com>
Sent: Wednesday, January 19, 2011 9:55:19 PM
Subject: [cw_bugs] Another way to slow a bug

Hi, All -

As usual, I am a day late and a dollar short for the discussion on ways to slow a bug, but herewith is what has just come out of the workshop. In the "Files" section of the group I have uploaded a description of this new approach to slowing down a bug into a speed range that is more accessible to many hams that you meet on the air. There are also a couple of photos in the "Photos" section that are taken from the write-up. A YouTube movie of the device in operation is being prepared.

I have called the device the BugNapper, because all of the better
names, like BugTamer, were taken. Please let me know if this term has been used by someone else - my XYL has come up with a few names is this one is taken.

73 de Rich, WB9LPU

Reply | Messages in this Topic (6)

#1537

From: "G2JL" <mort.g2jl@...>
Date: Fri Jan 21, 2011 11:37 pm
Subject: Re: Another way to slow a bug

mort.g2jl

Send Email

To paraphrase Carl ( while the overall speed needs to be slowed, the character speed should remain in the vicinity of 20) by saying: " IF overall speed needs to be slowed, the character speed should remain in the vicinity of 20" sums it all up completely. Below about 20 WPM, Morse tends to become unreadable. Only very skilled operators can concentrate well enough to read 12 wpm, which is why The Test was such a challenge in the Bad Old Days !

You can't learn to ride a pushbike by riding at 1 mile per hour. Stage performers can do it, yes; but beginners need "steerage way". Try to learn slow flying, or low-launch-velocity astronautics ? Try to learn a foreign language by starting at five syllables per minute ? Nonsense !

I've just got an antique McElroy, because I want to re-learn buggery. Do I slow it to 5 wpm ? Do I buggery !

Apologies if some of my linguistic subtleties are too obscure for some of our Overseas Members, but you are all so good that I tend to forget. Auf Deutsch, ich bin schrecklich; en francais, dégeulasse. As for my Greek, the Greeks have a word for it !

QAC de G2JL +

Reply | Messages in this Topic (6)

#1538

From: "F. Richard Burt" <BrazosValley@...>
Date: Sun Jan 23, 2011 7:11 pm
Subject: Re: New file uploaded to cw_bugs

effarbee

Send Email

Good Afternoon, Fellow Buggy Hams:

My father and I liked to Rag Chew with other hams, even the Novice boys
who were still having trouble with 5 words per minute speeds. In a pick-up

equipment issue from Texas Army MARS, I obtained my very own Vibroplex bug

for my very own. The positioning spring was VERY stiff, and the ditttsss

ran way too fast, even with the weight as far out on the pendulum movement

as I could place it. So, handy man that I can be, sometimes, I thought

about it overnight, and work up from a dead sleep with the "solution."

Fetching a fine-toothed metal file from my toolbox, I took careful aim

at the top edge of the spring and filed a notch in the spring. Then,

I fired up the transmitter and "tested" it. For semi-automatic keying

at slow words-per-minute, that flat spring was still way too stiff. So,

I turned the bug over and used my file on what was then the bottom edge

of the spring, (being up-side-down, I could gently press down with each

file-stroke and the amount of vertical mass at that point of the spring

was now beginning to "look" narrow. Better test again. The performance

now was quite good for a speed of about 10 words-per-minute speed. Since

my goal was to bring it down to 5 words-per-minute, I continued to file

the bottom edge of that spring, and tested after each set of about six

strokes of the file.

Sure enough, when I reached the place where the spring was "proper" to

rebulate the ditttssss evenly with the DAHs, the amount of steel left

was visible no more than about 1/8-inch. Fatigue might be a possibility,

but this adjustment in physical properties was inexpensive, interesting,

and successful in 1958, and it is still in good shape.

Richard Meiss, WB9LPU, your bug is beautifull, ...and shines quite well.

The Government didn't attempt to protect their stuff. All it had to do

was work when plugged into a transmitter. Let me pose my opinion, with

no hands-on experience with your proposed corrective action using magnets.

The "natural" feel of the corrective action with my bug has no quirkiness.

All of the physical properties "slowed" equally as I filed the steel

spring for less top-to-bottom mass. Just an idea worth consideration,

since I am now a reporting committee of one, uninvited to comment on the

subject. <grins>

73s

Dick

F. Richard Burt

W5QQM

Garland, Texas

BrazosValley@...

which I think could make placement and regulation of the counter-forces

necessary to compensate for too-rigid a return/restore spring

----- Original Message -----

From: cw_bugs@yahoogroups.com

To: cw_bugs@yahoogroups.com

Sent: Wednesday, January 19, 2011 8:35 PM

Subject: [cw_bugs] New file uploaded to cw_bugs

Hello,

This email message is a notification to let you know that
a file has been uploaded to the Files area of the cw_bugs
group.

File : /BugNapper 6.pdf
Uploaded by : richard_meiss <wb9lpu@...>
Description : Another approach to slowing a bug

You can access this file at the URL:
http://groups.yahoo.com/group/cw_bugs/files/BugNapper%206.pdf

To learn more about file sharing for your group, please visit:
http://help.yahoo.com/l/us/yahoo/groups/original/members/web/index.html
Regards,

richard_meiss <wb9lpu@...>

Reply | Messages in this Topic (3)

#1539

From: "richard_meiss" <wb9lpu@...>
Date: Mon Jan 24, 2011 1:51 am
Subject: Re: New file uploaded to cw_bugs

richard_meiss

Send Email

Hi, Dick -

       I guess that it took a bit more nerve that I have to attack the
mainspring of a bug, especially since it is riveted in place and your
modification was pretty permanent.  But if it worked for you, then it
did its job.  A potential problem with reducing the dimensions of the
spring from the top and bottom is that it reduces the strength of the
spring to bear the downward force of the weight on the pendulum.  One
way around this is to use a Dremel tool with a small abrasive wheel and
remove a "slot" of material from the center of the spring.  This
preserves its width and reduces its lateral stiffness with little effect
on the vertical strength.  But it is still not reversible.

      I took some time to clean up the bug before taking the photographs,
because it is my pride and joy.  My father gave it to me in 1957 as a
combination General license and birthday present.  Actually, he brought
home a Lafayette Radio bug (aka Skillman, "coffin bug", Hi-Mound, etc.).
It was a nice bug in its own right, but my father saw in my face that I
had really had my heart set on a Vibroplex, so he traded it in for one.
It has stayed with me for many moves and escaped being cut down to make
a CW paddle.  To shine it up without damaging the chrome, I used a Mr.
Clean Magic Eraser sponge.  That item leaves no residue and has no
abrasive effect either on the chrome or the crackle finish of the base.
I would be careful about using it on one of the "Japanned" bases of the
older Vibroplexes.

       A YouTube video of the BugNapper is in the works and should be
finished before too long.

       73 de Rich, WB9LPU


--- In cw_bugs@yahoogroups.com, "F. Richard Burt" <BrazosValley@...>
wrote:
>
> Good Afternoon, Fellow Buggy Hams:
>
> My father and I liked to Rag Chew with other hams, even the Novice
boys
> who were still having trouble with 5 words per minute speeds.  In a
pick-up
> equipment issue from Texas Army MARS, I obtained my very own Vibroplex
bug
> for my very own.  The positioning spring was VERY stiff, and the
ditttsss
> ran way too fast, even with the weight as far out on the pendulum
movement
> as I could place it.  So, handy man that I can be, sometimes, I
thought
> about it overnight, and work up from a dead sleep with the "solution."
>
> Fetching a fine-toothed metal file from my toolbox, I took careful aim
> at the top edge of the spring and filed a notch in the spring.  Then,
> I fired up the transmitter and "tested" it.  For semi-automatic keying
> at slow words-per-minute, that flat spring was still way too stiff.
So,
> I turned the bug over and used my file on what was then the bottom
edge
> of the spring, (being up-side-down, I could gently press down with
each
> file-stroke and the amount of vertical mass at that point of the
spring
> was now beginning to "look" narrow.  Better test again.  The
performance
> now was quite good for a speed of about 10 words-per-minute speed.
Since
> my goal was to bring it down to 5 words-per-minute, I continued to
file
> the bottom edge of that spring, and tested after each set of about six
> strokes of the file.
>
> Sure enough, when I reached the place where the spring was "proper" to
> rebulate the ditttssss evenly with the DAHs, the amount of steel left
> was visible no more than about 1/8-inch.  Fatigue might be a
possibility,
>  but this adjustment in physical properties was inexpensive,
interesting,
> and successful in 1958, and it is still in good shape.
>
> Richard Meiss, WB9LPU, your bug is beautifull, ...and shines quite
well.
> The Government didn't attempt to protect their stuff.  All it had to
do
> was work when plugged into a transmitter.  Let me pose my opinion,
with
> no hands-on experience with your proposed corrective action using
magnets.
>
> The "natural" feel of the corrective action with my bug has no
quirkiness.
> All of the physical properties "slowed" equally as I filed the steel
> spring for less top-to-bottom mass.  Just an idea worth consideration,
> since I am now a reporting committee of one, uninvited to comment on
the
> subject. <grins>
>
> 73s
>
> Dick
>
> F. Richard Burt
> W5QQM
>
> Garland, Texas
>
> BrazosValley@...
>
>
> .
> which I think could make placement and regulation of the
counter-forces
> necessary to compensate for too-rigid a return/restore spring
>   ----- Original Message -----
>   From: cw_bugs@yahoogroups.com
>   To: cw_bugs@yahoogroups.com
>   Sent: Wednesday, January 19, 2011 8:35 PM
>   Subject: [cw_bugs] New file uploaded to cw_bugs
>
>
>
>
>   Hello,
>
>   This email message is a notification to let you know that
>   a file has been uploaded to the Files area of the cw_bugs
>   group.
>
>   File : /BugNapper 6.pdf
>   Uploaded by : richard_meiss wb9lpu@...
>   Description : Another approach to slowing a bug
>
>   You can access this file at the URL:
>   http://groups.yahoo.com/group/cw_bugs/files/BugNapper%206.pdf
>
>   To learn more about file sharing for your group, please visit:
>
http://help.yahoo.com/l/us/yahoo/groups/original/members/web/index.html
>   Regards,
>
>   richard_meiss wb9lpu@...
>

Reply | Messages in this Topic (3)

#1540

From: "F. Richard Burt" <BrazosValley@...>
Date: Mon Jan 24, 2011 5:48 am
Subject: Re: Re: New file uploaded to cw_bugs

effarbee

Send Email

Good Morning, Rich, et al:

By the time I get this letter into cyberspace, the sun, moon, and

stars will convfirm that it is already Monday somewhere, so I can

say "Good Morning" with a clear head. <grins>

Your suggestions about how to relax the spring was a better idea

than what I did with my file. Good thinking.

G'nite, ...or G'mornin'
Dick

----- Original Message -----

From: richard_meiss

To: cw_bugs@yahoogroups.com

Sent: Sunday, January 23, 2011 7:51 PM

Subject: [cw_bugs] Re: New file uploaded to cw_bugs

Hi, Dick -

I guess that it took a bit more nerve that I have to attack the
mainspring of a bug, especially since it is riveted in place and your
modification was pretty permanent. But if it worked for you, then it
did its job. A potential problem with reducing the dimensions of the
spring from the top and bottom is that it reduces the strength of the
spring to bear the downward force of the weight on the pendulum. One
way around this is to use a Dremel tool with a small abrasive wheel and
remove a "slot" of material from the center of the spring. This
preserves its width and reduces its lateral stiffness with little effect
on the vertical strength. But it is still not reversible.

I took some time to clean up the bug before taking the photographs,
because it is my pride and joy. My father gave it to me in 1957 as a
combination General license and birthday present. Actually, he brought
home a Lafayette Radio bug (aka Skillman, "coffin bug", Hi-Mound, etc.).
It was a nice bug in its own right, but my father saw in my face that I
had really had my heart set on a Vibroplex, so he traded it in for one.
It has stayed with me for many moves and escaped being cut down to make
a CW paddle. To shine it up without damaging the chrome, I used a Mr.
Clean Magic Eraser sponge. That item leaves no residue and has no
abrasive effect either on the chrome or the crackle finish of the base.
I would be careful about using it on one of the "Japanned" bases of the
older Vibroplexes.

A YouTube video of the BugNapper is in the works and should be
finished before too long.

73 de Rich, WB9LPU

--- In cw_bugs@yahoogroups.com, "F. Richard Burt" <BrazosValley@...>
wrote:
>
> Good Afternoon, Fellow Buggy Hams:
>
> My father and I liked to Rag Chew with other hams, even the Novice
boys
> who were still having trouble with 5 words per minute speeds. In a
pick-up
> equipment issue from Texas Army MARS, I obtained my very own Vibroplex
bug
> for my very own. The positioning spring was VERY stiff, and the
ditttsss
> ran way too fast, even with the weight as far out on the pendulum
movement
> as I could place it. So, handy man that I can be, sometimes, I
thought
> about it overnight, and work up from a dead sleep with the "solution."
>
> Fetching a fine-toothed metal file from my toolbox, I took careful aim
> at the top edge of the spring and filed a notch in the spring. Then,
> I fired up the transmitter and "tested" it. For semi-automatic keying
> at slow words-per-minute, that flat spring was still way too stiff.
So,
> I turned the bug over and used my file on what was then the bottom
edge
> of the spring, (being up-side-down, I could gently press down with
each
> file-stroke and the amount of vertical mass at that point of the
spring
> was now beginning to "look" narrow. Better test again. The
performance
> now was quite good for a speed of about 10 words-per-minute speed.
Since
> my goal was to bring it down to 5 words-per-minute, I continued to
file
> the bottom edge of that spring, and tested after each set of about six
> strokes of the file.
>
> Sure enough, when I reached the place where the spring was "proper" to
> rebulate the ditttssss evenly with the DAHs, the amount of steel left
> was visible no more than about 1/8-inch. Fatigue might be a
possibility,
> but this adjustment in physical properties was inexpensive,
interesting,
> and successful in 1958, and it is still in good shape.
>
> Richard Meiss, WB9LPU, your bug is beautifull, ...and shines quite
well.
> The Government didn't attempt to protect their stuff. All it had to
do
> was work when plugged into a transmitter. Let me pose my opinion,
with
> no hands-on experience with your proposed corrective action using
magnets.
>
> The "natural" feel of the corrective action with my bug has no
quirkiness.
> All of the physical properties "slowed" equally as I filed the steel
> spring for less top-to-bottom mass. Just an idea worth consideration,
> since I am now a reporting committee of one, uninvited to comment on
the
> subject. <grins>
>
> 73s
>
> Dick
>
> F. Richard Burt
> W5QQM
>
> Garland, Texas
>
> BrazosValley@...
>
>
> .
> which I think could make placement and regulation of the
counter-forces
> necessary to compensate for too-rigid a return/restore spring
> ----- Original Message -----
> From: cw_bugs@yahoogroups.com
> To: cw_bugs@yahoogroups.com
> Sent: Wednesday, January 19, 2011 8:35 PM
> Subject: [cw_bugs] New file uploaded to cw_bugs
>
>
>
>
> Hello,
>
> This email message is a notification to let you know that
> a file has been uploaded to the Files area of the cw_bugs
> group.
>
> File : /BugNapper 6.pdf
> Uploaded by : richard_meiss wb9lpu@...
> Description : Another approach to slowing a bug
>
> You can access this file at the URL:
> http://groups.yahoo.com/group/cw_bugs/files/BugNapper%206.pdf
>
> To learn more about file sharing for your group, please visit:
>
http://help.yahoo.com/l/us/yahoo/groups/original/members/web/index.html
> Regards,
>
> richard_meiss wb9lpu@...
>

Reply | Messages in this Topic (3)

#1541

From: "Tom" <mtnest@...>
Date: Mon Jan 24, 2011 2:10 pm
Subject: Sealed magnetic reed switch

n1326e

Send Email

Hello to all,

  I would like to do some experimenting with telegraph keys
incorporating magnets and sealed magnetic reed switches
similar to those used in the beautiful keys designed by group
member Richard Meiss (wb9lpu). I've looked through his
very well done web site explanations but didn't see any
references to the reed switch source/s or p/n.

  Does anyone have a source for the reed switches? I've seen
a few websites but with so many versions to choose from, I'd
sure like some direction before ordering.

  Richard, many many thanks for posting your designs through
photos and explanations, what a treasure!

  Thanks for any help.

    73
    Tom
    W4TMW

Reply | Messages in this Topic (6)

#1542

From: "F. Richard Burt" <BrazosValley@...>
Date: Mon Jan 24, 2011 3:01 pm
Subject: Re: Sealed magnetic reed switch

effarbee

Send Email

Good Morning, Tom:

CQ W4TMW de W5QQM K

Tom are you anywhere near Montecello Florida? I have a

long-time ham friend named William Robert Moody, W4WSZ

who is a big DX addict, and, although W4-land is a huge

area, I was just curious if you all were close enough to

actually know each other. <grins>

73's Dick

F. Richard Burt

QTH Garland, TX U.S.A.

W5QQM K

I'm an N-scale model railroading addict. Confession is

good for the soul. <grins>

BrazosValley@...

Reply | Messages in this Topic (6)

#1543

From: "richard_meiss" <wb9lpu@...>
Date: Tue Jan 25, 2011 3:01 am
Subject: Re: Sealed magnetic reed switch

richard_meiss

Send Email

Hi, Tom -

     Welcome to the world of magnets and reed switches. Good rare-earth magnets are available from several places on the web. I am a customer of K&J Magnetics (http://www.kjmagnetics.com) and Magcraft (http://www.magcraft.com). Both of these companies have proved to be fast and reliable.
       Satisfactory reed switches are a bit harder to find. I have acquired a lot of them at hamfests - the ones that I find the most useful are about 1/2" long and 3/32" in diameter. One place to find them on the web, or by mail, is at All Electronics (http://www.allelectronics.com/make-a-store/item/RSW-27/SMALL-REED-SWITCH-N.O.//1.html). Their stock varies from time to time, so I get a bunch of them when they are available. Some places sell them for use in alarm systems, but these types tend to be pretty large.
      There are a few things to keep in mind when working with the glass-encapsulated reed switches. They are fragile, so I mount mine in brass tubes (5/32" diameter) for protection. This size of tube will accept the switch and allow for passage of connecting wires. The switches are surprisingly tolerant of soldering to the leads, as long as you are quick, but bending the leads (especially near to the switch body) is asking for trouble.
      Some other things to be aware of. Magnetic reed switches show hysteresis - that is, the point in a magnetic field where they turn on is different from where they turn off (they become slightly magnetized themselves). This is great for use in bugs, where there is a fair amount of pendulum movement - the hysteresis completely eliminates the "scratchy dits" problem. But in a straight key or paddle, this can pose a little problem. If you have a magnet on the key lever, as you push the key down the switch will close at some point (which you can set to be the end of the stroke). But as the key lever moves back up, the switch will stay closed for a small space. This means that you might not be able to set the travel distance to be as small as you would want - especially in a paddle.
     The switches also have "hot spots" that you can map by moving a small magnet around them. The sensitivity falls off with distance differently depending on the hot spot chosen. I have also found that the switches work predictably as long as the current switched is quite low (as it is with a modern keying circuit). If you try to switch a higher current, the flowing current changes the characteristics of the switch in a rather unpredictable way. So if you are trying to key a "boat anchor", a keying relay is in order.
       Most of these properties can be turned to your advantage with careful design. Best of luck with your experiments, and let us know what develops.

      73 de Rich, WB9LPU

--- In cw_bugs@yahoogroups.com, "Tom" <mtnest@...> wrote:
>
>
> Hello to all,
>
> I would like to do some experimenting with telegraph keys
> incorporating magnets and sealed magnetic reed switches
> similar to those used in the beautiful keys designed by group
> member Richard Meiss (wb9lpu). I've looked through his
> very well done web site explanations but didn't see any
> references to the reed switch source/s or p/n.
>
> Does anyone have a source for the reed switches? I've seen
> a few websites but with so many versions to choose from, I'd
> sure like some direction before ordering.
>
> Richard, many many thanks for posting your designs through
> photos and explanations, what a treasure!
>
> Thanks for any help.
>
> 73
> Tom
> W4TMW
>

Reply | Messages in this Topic (6)

#1544

From: "Tom" <mtnest@...>
Date: Tue Jan 25, 2011 3:02 pm
Subject: Re: Sealed magnetic reed switch

n1326e

Send Email

Hello Dick,

    Nope, not in that area, I live in Hartwell, GA. a small town
situated on Lake Hartwell at the headwaters of the Savannah river.

  Also, not aware of Robert, but then I'm only a little guy among
the DX crowd.

    73
    Tom
    W4TMW



--- In cw_bugs@yahoogroups.com, "F. Richard Burt" <BrazosValley@...> wrote:
>
> Good Morning, Tom:
>
> CQ  W4TMW de W5QQM K
>
> Tom are you anywhere near Montecello Florida?  I have a
> long-time ham friend named William Robert Moody, W4WSZ
> who is a big DX addict, and, although W4-land is a huge
> area, I was just curious if you all were close enough to
> actually know each other. <grins>
>
> 73's  Dick
>
> F. Richard Burt
> QTH Garland, TX  U.S.A.
> W5QQM K
>
> I'm an N-scale model railroading addict.  Confession is
> good for the soul. <grins>
>
> BrazosValley@...
>
> .
>

Reply | Messages in this Topic (6)

#1545

From: "Tom" <mtnest@...>
Date: Tue Jan 25, 2011 3:21 pm
Subject: Re: Sealed magnetic reed switch

n1326e

Send Email

Good morning Richard,

  Thank you, thank you for all of the excellent info. I'm excited to get going on
this voyage, especially after your comments. I can see now, that I will need to
do some exploring with adjustable parts just as you did when you got into the
magnetic/switching area. Thank goodness I saved many of your photos and
explanations since it was reported that they were all lost during the switchover
to this new group website.

  Yes, I intend to report my progress, but for now it will probably be all
questions. :0)

    73
    Tom
    W4TMW



  "richard_meiss" <wb9lpu@...> wrote:
>
> Hi, Tom -
>
>       Welcome to the world of magnets and reed switches.  Good rare-earth
> magnets are available from several places on the web.  I am a customer
> of  K&J Magnetics (http://www.kjmagnetics.com
> <http://www.kjmagnetics.com/> ) and Magcraft (http://www.magcraft.com
> <http://www.kjmagnetics.com/> ).  Both of these companies have proved to
> be fast and reliable.
>         Satisfactory reed switches are a bit harder to find.  I have
> acquired a lot of them at hamfests - the ones that I find the most
> useful are about 1/2" long and 3/32" in diameter.  One place to find
> them on the web, or by mail, is at All Electronics
> (http://www.allelectronics.com/make-a-store/item/RSW-27/SMALL-REED-SWITC\
> H-N.O.//1.html
> <http://www.allelectronics.com/make-a-store/item/RSW-27/SMALL-REED-SWITC\
> H-N.O.//1.html> ).  Their stock varies from time to time, so I get a
> bunch of them when they are available.  Some places sell them for use in
> alarm systems, but these types tend to be pretty large.
>        There are a few things to keep in mind when working with the
> glass-encapsulated reed switches.  They are fragile, so I mount mine in
> brass tubes (5/32" diameter) for protection.  This size of tube will
> accept the switch and allow for passage of connecting wires.  The
> switches are surprisingly tolerant of soldering to the leads, as long as
> you are quick, but bending the leads (especially near to the switch
> body) is asking for trouble.
>        Some other things to be aware of.  Magnetic reed switches show
> hysteresis - that is, the point in a magnetic field where they turn on
> is different from where they turn off (they become slightly magnetized
> themselves).  This is great for use in bugs, where there is a fair
> amount of pendulum movement - the hysteresis completely eliminates the
> "scratchy dits" problem.  But in a straight key or paddle, this can pose
> a little problem.  If you have a magnet on the key lever, as you push
> the key down the switch will close at some point (which you can set to
> be the end of the stroke).  But as the key lever moves back up, the
> switch will stay closed for a small space.  This means that you might
> not be able to set the travel distance to be as small as you would want
> - especially in a paddle.
>       The switches also have "hot spots" that you can map by moving a
> small magnet around them.  The sensitivity falls off with distance
> differently depending on the hot spot chosen.  I have also found that
> the switches work predictably as long as the current switched is quite
> low (as it is with a modern keying circuit).  If you try to switch a
> higher current, the flowing current changes the characteristics of the
> switch in a rather unpredictable way.  So if you are trying to key a
> "boat anchor", a keying relay is in order.
>         Most of these properties can be turned to your advantage with
> careful design.  Best of luck with your experiments, and let us know
> what develops.
>
>        73 de Rich, WB9LPU

Reply | Messages in this Topic (6)

#1546

From: "k5est" <k5est@...>
Date: Wed Jan 26, 2011 2:25 am
Subject: Re: Sealed magnetic reed switch

k5est

Send Email

Wow, well done and great info, Rich!
Many thanks for the tutorial that saves a lot of experimenting
and crazy head scratching!!!
73....Walter - K5EST

--- In cw_bugs@yahoogroups.com, "richard_meiss" <wb9lpu@...> wrote:
>
> Hi, Tom -
>
>       Welcome to the world of magnets and reed switches.  Good rare-earth
> magnets are available from several places on the web.  I am a customer
.............snip..........

Reply | Messages in this Topic (6)

#1547

From: wz4cw@...
Date: Wed Jan 26, 2011 5:25 am
Subject: Vibroplex Pendulum Spring Mod for Slower Speed

ares1934

Send Email

Several days ago, two persons were telling how they each had modified the pendulum spring on a Vibroplex bug to slow its speed. One had filed notches in the spring, and the other had ground a slot in the spring. While this type of non-reversable modification to the pendulum spring is not advised, they were correct in looking at the pendulum spring as a way to adjust the pendulum oscillation period. This is in addition to the placement of weights on the pendulum itself.

Actually, Vibroplex had already addressed this modification concern years ago. In 1940, John La Hiff had patented a new type of adjustable pendulum spring. It was first used in a new model Presentation Vibroplex beginning in 1948. This bug looked like a Deluxe Original, but it also had a gold plated brass plate and the La Hiff adjustable pendulum spring. One end of the spring was riveted to the rear part of the pendulum, but the other end of the spring slipped into a slot in the front part of the pendulum and was retained by two screws. This adjustable spring could be made longer or shorter to control the speed. The Presentation was made this way until 1978. Beginning in 1979, Presentation models ceased to feature the La Hiff spring.

Presentation models with the La Hiff adjustable spring are scarce. However, one can really make a Vibroplex collection stand out. I'm smiling because I have one.

73 Carl WZ4CW SKCC 918 FISTS 13491

Reply | Messages in this Topic (9)

#1548

From: k4oso@...
Date: Wed Jan 26, 2011 12:32 am
Subject: Re: Vibroplex Pendulum Spring Mod for Slower Speed

k4oso

Send Email

Carl,

I have seen the filed notch mod on a Vibroplex and it does indeed slow the oscillations. The one I owned would have been impossibly rigid without the mod.

Like you, I'm also smiling cuz I have Presentations with the La Hiff adjustable mainspring: one "righty" and one "lefty".

73, Milt k4oso

In a message dated 1/26/2011 12:25:55 AM Eastern Standard Time, wz4cw@... writes:

     Several days ago, two persons were telling how they each had modified the pendulum spring on a Vibroplex bug to slow its speed. One had filed notches in the spring, and the other had ground a slot in the spring. While this type of non-reversable modification to the pendulum spring is not advised, they were correct in looking at the pendulum spring as a way to adjust the pendulum oscillation period. This is in addition to the placement of weights on the pendulum itself.

     Actually, Vibroplex had already addressed this modification concern years ago. In 1940, John La Hiff had patented a new type of adjustable pendulum spring. It was first used in a new model Presentation Vibroplex beginning in 1948. This bug looked like a Deluxe Original, but it also had a gold plated brass plate and the La Hiff adjustable pendulum spring. One end of the spring was riveted to the rear part of the pendulum, but the other end of the spring slipped into a slot in the front part of the pendulum and was retained by two screws.  This adjustable spring could be made longer or shorter to control the speed. The Presentation was made this way until 1978. Beginning in 1979, Presentation models ceased to feature the La Hiff spring.

     Presentation models with the La Hiff adjustable spring are scarce. However, one can really make a Vibroplex collection stand out. I'm smiling because I have one.

73 Carl WZ4CW   SKCC 918 FISTS 13491

Reply | Messages in this Topic (9)

#1549

From: wz4cw@...
Date: Wed Jan 26, 2011 5:57 am
Subject: Re: Vibroplex Pendulum Spring Mod for Slower Speed

ares1934

Send Email

Milt-

That's why they're scarce - you have two! LOL I can't remember who, but I think it was you - Were you saying that you had an idea to make "Vibroplex" style bug carrying cases like the old ones? Maybe some day? If so, were you aware that the very first cases were wood only? No leatherette- I think I have a couple of copies of old Vibroplex ads, showing a carry case- Would you be interested? If you ever get into case making, put a leather handle on it, not a new type plastic one- You must be like me , up all night-
73 Carl WZ4CW SKCC 918 FISTS 13491

Reply | Messages in this Topic (9)

#1550

From: "richard_meiss" <wb9lpu@...>
Date: Fri Jan 28, 2011 1:55 am
Subject: Re: Vibroplex Pendulum Spring Mod for Slower Speed

richard_meiss

Send Email

Hi, All -

     More smiles here - I checked my Original Presentation, and it has the La
Hiff spring.  Which brings me to the next question - is the gold base plate
really gold plated?  I hate to try to polish it and find out that the gold layer
is only a micron thick.  Has anyone priced a replating job for just the
decorative plate?

     73 de Rich, WB9LPU


--- In cw_bugs@yahoogroups.com, wz4cw@... wrote:
>
>
>
>      Several days ago, two persons were telling how they each had modified
the pendulum spring on a Vibroplex bug to slow its speed.  One had filed
notches in the spring, and the other had ground a slot in the spring.  While
this type of non-reversable modification to the pendulum spring is not advised,
they were correct in looking at the pendulum spring as a way to adjust the
pendulum oscillation period.  This is in addition to the placement of weights
on the pendulum itself.
>
>      Actually, Vibroplex had already addressed this modification concern
years ago.  In 1940, John La Hiff had patented a new type of adjustable
pendulum spring.  It was first used in a new model Presentation Vibroplex
beginning in 1948.  This bug looked like a Deluxe Original, but it also had a
gold plated brass plate and the La Hiff adjustable pendulum spring.  One end of
the spring was riveted to the rear part of the pendulum, but the other end of
the spring slipped into a slot in the front part of the pendulum and was
retained by two screws.  This adjustable spring could be made longer or
shorter to control the speed.  The Presentation was made this way until 1978. 
Beginning in 1979, Presentation models ceased to feature the La Hiff spring.
>
>      Presentation models with the La Hiff adjustable spring are scarce. 
However, one can really make a Vibroplex collection stand out.  I'm smiling
because I have one.
>
>
>
> 73  Carl  WZ4CW      SKCC 918     FISTS 13491
>  
>
>
>
> .
>

Reply | Messages in this Topic (9)

#1551

From: wz4cw@...
Date: Fri Jan 28, 2011 4:44 am
Subject: Re: Re: Vibroplex Pendulum Spring Mod for Slower Speed

ares1934

Send Email

Rich-

The "Gold Plate" is a brass plate that has been gold plated. I would be very careful when doing any polishing. I don't know for a fact how thick the plating is, but I would guess that it is relatively thin. Before Vibroplex moved from Mobile, AL, I spoke with employees there. They cautioned me to be very careful with any attempt to polish the plate. They quoted me a price of $80 for a complete new "Gold Plated" plate. However, the plates seem to be custom made. I'm guessing this, because they told me that to get a new plate, I would have to ship them the "chrome base" that I wanted the plate for so they could match all the holes in it. I don't know if gold plates are available from Vibroplex Knoxville. Since you already have a plate, you might inquire locally about replating it and the cost. Good Luck!

73 Carl WZ4CW SKCC 918 FISTS 13491

----- Original Message -----
From: "richard_meiss" <wb9lpu@...>
To: "cw bugs" <cw_bugs@yahoogroups.com>
Sent: Thursday, January 27, 2011 8:55:57 PM
Subject: [cw_bugs] Re: Vibroplex Pendulum Spring Mod for Slower Speed

Hi, All -

More smiles here - I checked my Original Presentation, and it has the La Hiff spring. Which brings me to the next question - is the gold base plate really gold plated? I hate to try to polish it and find out that the gold layer is only a micron thick. Has anyone priced a replating job for just the decorative plate?

73 de Rich, WB9LPU

Reply | Messages in this Topic (9)

#1552

From: Jerry <jer.sieg@...>
Date: Fri Jan 28, 2011 12:45 pm
Subject: Re: Re: Vibroplex Pendulum Spring Mod for Slower Speed

ve6cpp

Send Email

I received an e-mail the other day from Scott W4PA at Vibroplex regarding a Gold Base Triple Key.. his reply;

Please note - I'm not building the gold plated version right now as I am having trouble finding quality plating work. Chrome version built to order, no charge made to your credit card until it ships. We also have dust covers available for the triple key.
73
Scott Robbins
W4PA

So he 'May Not' be building Any Gold Base models at this time..so, yes, do be careful if trying to polish yours..you may have trouble replacing it ! Perhaps you can as him for advice on polishing ? His e-mail vibroplexknoxville@...
Jerry VE6CPP

On 1/27/2011 9:44 PM, wz4cw@... wrote:

Rich-

The "Gold Plate" is a brass plate that has been gold plated. I would be very careful when doing any polishing. I don't know for a fact how thick the plating is, but I would guess that it is relatively thin. Before Vibroplex moved from Mobile, AL, I spoke with employees there. They cautioned me to be very careful with any attempt to polish the plate. They quoted me a price of $80 for a complete new "Gold Plated" plate. However, the plates seem to be custom made. I'm guessing this, because they told me that to get a new plate, I would have to ship them the "chrome base" that I wanted the plate for so they could match all the holes in it. I don't know if gold plates are available from Vibroplex Knoxville. Since you already have a plate, you might inquire locally about replating it and the cost. Good Luck!

73 Carl WZ4CW SKCC 918 FISTS 13491

----- Original Message -----
From: "richard_meiss" <wb9lpu@...>
To: "cw bugs" <cw_bugs@yahoogroups.com>
Sent: Thursday, January 27, 2011 8:55:57 PM
Subject: [cw_bugs] Re: Vibroplex Pendulum Spring Mod for Slower Speed

Hi, All -

More smiles here - I checked my Original Presentation, and it has the La Hiff spring. Which brings me to the next question - is the gold base plate really gold plated? I hate to try to polish it and find out that the gold layer is only a micron thick. Has anyone priced a replating job for just the decorative plate?

73 de Rich, WB9LPU

Reply | Messages in this Topic (9)

#1553

From: "Steve" <nu7t@...>
Date: Fri Jan 28, 2011 5:11 pm
Subject: Re: Re: Vibroplex Pendulum Spring Mod for Slower Speed

nu7t

Send Email

Rich, Carl and Jerry,

The gold was polished off the brass plate of my Presentation, with ease. But, the brass is shiny.

Story - I bought the Presentation for a very good price. The second jewelry store I approached had a real jewelry repair and design person. He offered his shop and himself to assist in cleaning the bug at no charge !

He gave me a handful of small plastic bags and told me to disassemble the key placing a part to a bag; then return. I did.

Our cleaning assembly line had that key shimmering. Alas, the gold was gone. The bug sounds the same. It catches your eye from inside the glass cabinet. I am beginning to cry.

Steve, NU7T

FCC Section 97.313(a) At all times, an amateur station must use the minimum transmitter power necessary to carry out the desired communications.

Reply | Messages in this Topic (9)

#1554

From: "w2blc" <w2blc@...>
Date: Sat Jan 29, 2011 1:06 am
Subject: Re: Vibroplex Pendulum Spring Mod for Slower Speed

w2blc

Send Email

This company might just offer the perfect answer for replating the "gold" plate
on a Vibroplex Presentation:
http://www.caswellplating.com/pickakit/index.html


--- In cw_bugs@yahoogroups.com, "richard_meiss" <wb9lpu@...> wrote:
>
> Hi, All -
>
>     More smiles here - I checked my Original Presentation, and it has the La
Hiff spring.  Which brings me to the next question - is the gold base plate
really gold plated?  I hate to try to polish it and find out that the gold layer
is only a micron thick.  Has anyone priced a replating job for just the
decorative plate?
>
>     73 de Rich, WB9LPU
>
>
> --- In cw_bugs@yahoogroups.com, wz4cw@ wrote:
> >
> >
> >
> >      Several days ago, two persons were telling how they each had
modified the pendulum spring on a Vibroplex bug to slow its speed.  One had
filed notches in the spring, and the other had ground a slot in the spring. 
While this type of non-reversable modification to the pendulum spring is not
advised, they were correct in looking at the pendulum spring as a way to adjust
the pendulum oscillation period.  This is in addition to the placement of
weights on the pendulum itself.
> >
> >      Actually, Vibroplex had already addressed this modification concern
years ago.  In 1940, John La Hiff had patented a new type of adjustable
pendulum spring.  It was first used in a new model Presentation Vibroplex
beginning in 1948.  This bug looked like a Deluxe Original, but it also had a
gold plated brass plate and the La Hiff adjustable pendulum spring.  One end of
the spring was riveted to the rear part of the pendulum, but the other end of
the spring slipped into a slot in the front part of the pendulum and was
retained by two screws.  This adjustable spring could be made longer or
shorter to control the speed.  The Presentation was made this way until 1978. 
Beginning in 1979, Presentation models ceased to feature the La Hiff spring.
> >
> >      Presentation models with the La Hiff adjustable spring are
scarce.  However, one can really make a Vibroplex collection stand out.  I'm
smiling because I have one.
> >
> >
> >
> > 73  Carl  WZ4CW      SKCC 918     FISTS 13491
> >  
> >
> >
> >
> > .
> >
>

Reply | Messages in this Topic (9)

#1555

From: "Earl Needham" <earl.kd5xb@...>
Date: Sat Jan 29, 2011 1:16 am
Subject: Re: Re: Vibroplex Pendulum Spring Mod for Slower Speed

earl_needham

Send Email

Thanks for that! My '56 Presentation has a small area where the plating is missing, and I made it worse trying to cleans something off where it really wasn't dirty. I'll have to look into replating it when I get home.

Vy 7 3
Earl
KD5XB

KD5XB -- Earl Needham http://groups.yahoo.com/group/cw_bugs Quoting from the Coast Guard: ZUT Posted via Blackberry

From: "w2blc" <w2blc@...>

Sender: cw_bugs@yahoogroups.com

Date: Sat, 29 Jan 2011 01:06:38 -0000

To: <cw_bugs@yahoogroups.com>

ReplyTo: cw_bugs@yahoogroups.com

Subject: [cw_bugs] Re: Vibroplex Pendulum Spring Mod for Slower Speed

This company might just offer the perfect answer for replating the "gold" plate
on a Vibroplex Presentation:
http://www.caswellplating.com/pickakit/index.html

--- In cw_bugs@yahoogroups.com, "richard_meiss" <wb9lpu@...> wrote:
>
> Hi, All -
>
> More smiles here - I checked my Original Presentation, and it has the La Hiff spring. Which brings me to the next question - is the gold base plate really gold plated? I hate to try to polish it and find out that the gold layer is only a micron thick. Has anyone priced a replating job for just the decorative plate?
>
> 73 de Rich, WB9LPU
>
>
> --- In cw_bugs@yahoogroups.com, wz4cw@ wrote:
> >
> >
> >
> >      Several days ago, two persons were telling how they each had modified the pendulum spring on a Vibroplex bug to slow its speed. One had filed notches in the spring, and the other had ground a slot in the spring. While this type of non-reversable modification to the pendulum spring is not advised, they were correct in looking at the pendulum spring as a way to adjust the pendulum oscillation period. This is in addition to the placement of weights on the pendulum itself.
> >
> >      Actually, Vibroplex had already addressed this modification concern years ago. In 1940, John La Hiff had patented a new type of adjustable pendulum spring. It was first used in a new model Presentation Vibroplex beginning in 1948. This bug looked like a Deluxe Original, but it also had a gold plated brass plate and the La Hiff adjustable pendulum spring. One end of the spring was riveted to the rear part of the pendulum, but the other end of the spring slipped into a slot in the front part of the pendulum and was retained by two screws.  This adjustable spring could be made longer or shorter to control the speed. The Presentation was made this way until 1978. Beginning in 1979, Presentation models ceased to feature the La Hiff spring.
> >
> >      Presentation models with the La Hiff adjustable spring are scarce. However, one can really make a Vibroplex collection stand out. I'm smiling because I have one.
> >
> >
> >
> > 73 Carl WZ4CW    SKCC 918 FISTS 13491
> >
> >
> >
> >
> > .
> >
>

Reply | Messages in this Topic (9)

#1556

From: "richard_meiss" <wb9lpu@...>
Date: Wed Feb 9, 2011 3:26 am
Subject: The BugNapper video is up.

richard_meiss

Send Email

Hi, All -

       It took a bit longer than expected, but the video of the BugNapper
in operation is up on the YouTube site at the URL
http://www.youtube.com/watch?v=iPAuyzpw1Uw  Right now it is specifically
dimensioned for the Vibroplex original, but variations could work on any
conventional bug.  On the Vibroplex, the device does not change the
footprint or overall height of the key.  (See also the PDF in the Files
section of this group.)

       Hopefully the device does not upset the looks of the bug, but it is
completely removable (and can remain in place even when it is not
slowing the bug down).

       73 de Rich, WB9LPU

Reply | Messages in this Topic (2)

#1557

From: Larry Makoski <w2lj@...>
Date: Wed Feb 9, 2011 4:31 am
Subject: Re: The BugNapper video is up.

w2lj@...

Send Email

On 2/8/2011 10:26 PM, richard_meiss wrote:

Hi, All -

It took a bit longer than expected, but the video of the BugNapper
in operation is up on the YouTube site at the URL
http://www.youtube.com/watch?v=iPAuyzpw1Uw Right now it is specifically
dimensioned for the Vibroplex original, but variations could work on any
conventional bug. On the Vibroplex, the device does not change the
footprint or overall height of the key. (See also the PDF in the Files
section of this group.)

Hopefully the device does not upset the looks of the bug, but it is
completely removable (and can remain in place even when it is not
slowing the bug down).

73 de Rich, WB9LPU

OK Rich,

You have me drooling! Are these going to be available? I have an Original that could use one of your Bugnappers, too.

Larry W2LJ

-- 73 de Larry W2LJ
QRP - When you care to send the very least!
http://w2lj.blogspot.com/
http://www.w2lj.qrpradio.com/

Reply | Messages in this Topic (2)

#1558

From: "Larry Makoski" <w2lj@...>
Date: Sun Feb 20, 2011 8:26 pm
Subject: RFTB Tonight

w2lj@...

Send Email

Tonight is RFTB night.

Pooped from the ARRL DX Contest?  Heck, spend  a 'lil more time on the air with
us!  It is President's Day tomorrow - so hopefully you have the day off and will
be able to sleep in.

And as the K6JSS key is handed off to K6JSS/2, the New York team, we cordially
invite them to come join us in "The Sty" tonight.

As always, all are welcome - no need to actually be a Piggie to join in on the
fun !!!

The time is the same as always:

East coast - 9:00 to 11:00 PM local time
Midwest - 8:00 to 10:00 PM local time
Rockies - 7:00 to 9:00 PM local time
West coast - 6:00 to 8:00 PM local time

The rules are at:

http://www.fpqrp.com/fpqrprun.php

73 de Larry W2LJ
FP# 612
QRP ARCI# 4488

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