solid silver. i polish them into convex surfaces that glide across each other. old ones are usually pitted from relatively high currents and voltages and...
1603
Michael MacLeod
mm1ewa
Jul 6, 2011 6:13 pm
Thanks Fred & Dave, Might as well go on with 2nd question then :-) The T bar style damper, It appeared on #4s and Originals (as well as X) around 1920s, the...
1604
David Holley
geoguy_dave
Jul 6, 2011 6:41 pm
Michael & Group, As for you latest question, I have examples of the three keys you mentioned but have never seen a Martin Junior with T bar damper. It is...
1605
Fred Maas
just.one.hill@...
Jul 6, 2011 6:43 pm
I have a list of 136 Juniors, and I don't recall any with the T-Bar damper. Vibroplex wasted no parts. The T-damper came from the X keys. When they ...
1606
Fred Maas
just.one.hill@...
Jul 6, 2011 6:59 pm
That's interesting, Dave. I do have one (a Junior) that is in near new condition. Most were heavily used by professionals as they were special order keys for...
1607
Michael MacLeod
mm1ewa
Jul 6, 2011 7:24 pm
Thanks Dave/Fred I've wondered about the possibility of a Martin Jr existing with the T bar as the time period overlaps, theoretically they could have been...
1608
VK4ACB
vk4wm
Jul 7, 2011 1:13 pm
Thank you both for the information Willis and Fred, I see what you mean, I carefully cleaned the perimeter of the contacts and can now see the thickness of the...
1609
Fred Maas
just.one.hill@...
Jul 7, 2011 7:02 pm
Must say, *DR*, that I don't think I know "*the correct*" way to do anything ;-) And i don't have a Dremel. I use a polishing cloth, thick, soft, and...
1610
VK4ACB
vk4wm
Jul 8, 2011 12:45 pm
A 12 mile run! I'm worn out just reading that Fred, the two adjustable contacts in my Vibroplex Champion are not easily removable from the short and tall...
1611
Fred Maas
just.one.hill@...
Jul 8, 2011 1:41 pm
Lessee, Wade ... * the older contact points were smaller that the screw and come right out. the newer ones are larger and don't, much more difficult to deal...
1612
k4oso
Jul 8, 2011 2:00 pm
Wade, It is quite easy once you catch on to the fact that sending either dots or dashes on a bug is not a "static", either-or operation. The process of...
1613
Merv Schweigert
mervschweigert
Jul 8, 2011 3:52 pm
... One trick I use on old bugs like that is to put a very small piece of foam, experiment with different densities, between the dit spring, it makes up for...
1614
k4oso
Jul 8, 2011 4:35 pm
Thanks Merv, But...I think your explanation provides the reason most of us don't do it. 73, Milt k4oso...
1615
WILLIS COOKE
k5ewj
Jul 8, 2011 4:35 pm
Instead of foam I use the small soft plastic pieces sold for non skid feet at Wal-Mart and other sundry stores. They are self adhesive and hold up longer ...
1616
Fred Maas
just.one.hill@...
Jul 8, 2011 5:34 pm
Irrellevant I suppose, but I LOVE your call sign. All of it. The K9 (canine), the FD, field day or Fred, and the /KH6 73, Fred "FD" also; W5YA / qrp, and...
1617
Kate Hutton
khutton9
Jul 8, 2011 5:47 pm
I think my dog thought K9FD was what it was all about, since he got to go & hang out at Field Day. The food he begged & stole was the best, apparently. 73...
1618
Merv Schweigert
mervschweigert
Jul 8, 2011 6:08 pm
Tnx Fred, I like it on CW of course. Got it back in the 70's when incentive license came along. For a while it seemed to "long" for Dxing so changed to KH7C...
1619
Merv Schweigert
mervschweigert
Jul 8, 2011 6:10 pm
Sounds like your dog and I would get along well, I like the food at field day as well usually. A few brews and some BBQ is FD at the best. 73 Merv K9FD...
1620
vk4wm
Jul 10, 2011 1:49 am
Ok thanks Milt, you are right the "V"'s work, everytime I sit down for a practice session the first series dont always pan out right then I settle in to it and...
1621
vk4wm
Jul 10, 2011 2:03 am
... Thanks Fred, the obvious escaped me but I hope I would have thought of it eventually :-) that would work, by holding the post and turning the screw with...
1622
Fred Maas
just.one.hill@...
Jul 10, 2011 2:29 am
meant that you might collect experiences in a shorter period of time. Don't think there are definitive answers, but I can tell you that I have sometimes...
1623
vk4wm
Jul 10, 2011 2:34 am
Thanks for the reply Merv, the silver rod would be a bit thin on the ground around here I would imagine, I have a work and play background in precision...
1624
Fred Maas
just.one.hill@...
Jul 10, 2011 2:58 am
I now own another bug, an Australian made Simplex Auto, sadly the flat spring steel blade that has the dot contact on it has fractured near the mounting post...
1625
Richard Meiss
richard_meiss
Jul 10, 2011 3:12 am
Hi, All - I have found another solution for scratchy and "bouncy" dots when keying a very unforgiving solid state rig. I use the bug to key an MFJ keyer that...
1626
Pete Ferrand
cr88a
Jul 10, 2011 4:20 am
Hi Wade: I've never had a Simplex unfortunately but years ago I hit upon a solution to the spring steel issue that would probably work. Just head for the...
1627
Merv Schweigert
mervschweigert
Jul 10, 2011 3:36 pm
A good replacement for a spring is to buy a "feeler guage" they can be found in individual sizes many times at auto repair parts stores. I dont remember the ...
1628
vk4wm
Jul 11, 2011 1:32 pm
G'day Merv That is an excellent suggestion Merv, would you believe I had a set of feeler gauges right in front of me that I had been using to set the...
1629
Fred Maas
just.one.hill@...
Jul 11, 2011 2:00 pm
Wade, I have used Krylon Wrinkle Finish # 3370 successfully. Look at the opening page right angle bug on my website, < www.KT5X.com > to see what it looks...
1630
vk4wm
Jul 12, 2011 12:55 pm
Wow! what a great restoration job and what an interesting key the Codetrol is, I can understand your reluctance to see it go Fred, so does it work on the same...
1631
Fred Maas
just.one.hill@...
Jul 12, 2011 1:40 pm
The Codetrol has a mechansim like the Vibroplex. It feels like a Vibroplex. They were made in the early 1950's, I say, "They," were made, in fact, it seems...
