On Sat, Nov 17, 2012 at 06:52:47AM -0000, Douglas wrote:
> The video intensity knob in the back changes the text brightness but
> does not affect the
> brightness of the abnormality.
>
Nornmally monitors have two adjustments, brightness and contrast or
some similar name. Roughly brighness sets the black level/backgrond and
constrast the gain so it mostly effects text brightness. It sounds like your
monitor only has the contrast control external.

This link indicates that the monitor does have an internal brighness pot.
Adjusting it may fix your problem. People with Kaypro experiance may
chime in with better advice.
http://newsgroups.derkeiler.com/Archive/Comp/comp.os.cpm/2005-08/msg00052.html

--- In midatlanticretro@yahoogroups.com, "Douglas" <touchetek@...> wrote:
>
> For a few seconds, the background is normal;   nice and dark.
> The text stays the same.
> The the abnormal retracing fades up.


> (some just say swap out the video board...)

Wow, that's great advice, I would have said swap out the computer ;)
(sarcasm).

Seriously, here's what I would do to start breaking down the problem.
Two roads.
1. the problem occurs much after the capacitors charge, the picture tube warms
up, so I would guess some part is getting excessively hot.  Get some cold spray
and gently spray some area of the video board.  Spray with the straw 2 or 3"
from board.  Cover the whole board a few times, do this within 30 seconds of the
problem appearing.  If there are no changes, power down, repeat but be more
agressive with cold spray, say 1".  If you do encounter a change, wait for the
problem and find the component(s) that are causing it.  When you find the
component, you'll decide then what to do about it? replace? supplement a heat
sink? trace the heat problem to some other source ie voltage too high?

2. Scope the pins to the CRT.  In general, there could be 3 grid voltages I
think they were Bias, Focus and Video?  Then there's the cathode and the heater.
I think most of these voltages are low, perhaps the bias voltage might be high?
but nothing a scope can't handle.  Stay away from the high voltage line that is
a single wire to the side of the tube, here you can find 15,000 volts (up to 35K
on large colour TV's).  While scoping, look for which line (if any) shifts it's
voltage.  If none of the lines shift voltage, then the problem could be with the
high voltage or the picture tube?  But I've never heard of a picture tube
causing this problem and a change in high voltage typically results in a loss of
focus.

PS. I have a Kaypro in my repair queue too, but it will be a while before I get
to it.

Good luck!
Josh

--- In midatlanticretro@yahoogroups.com, David Gesswein <djg@...> wrote:
>
> On Sat, Nov 17, 2012 at 06:52:47AM -0000, Douglas wrote:
> > The video intensity knob in the back changes the text brightness but
> > does not affect the
> > brightness of the abnormality.
> >
> This link indicates that the monitor does have an internal brighness pot.
> Adjusting it may fix your problem. People with Kaypro experiance may
> chime in with better advice.
> http://newsgroups.derkeiler.com/Archive/Comp/comp.os.cpm/2005-08/msg00052.html
>

Hi Doug,  Scratch my advice, I think David has the right stuff here.

Cheers,
Josh

--- In midatlanticretro@yahoogroups.com, joshbensadon <no_reply@...> wrote:
>
> --- In midatlanticretro@yahoogroups.com, "Douglas" <touchetek@> wrote:
> >
> > For a few seconds, the background is normal;   nice and dark.
> > The text stays the same.
> > The the abnormal retracing fades up.
>
>
> > (some just say swap out the video board...)
>
> Wow, that's great advice, I would have said swap out the computer ;)
> (sarcasm).
>
> Seriously, here's what I would do to start breaking down the problem.
> Two roads.
> 1. the problem occurs much after the capacitors charge, the picture tube warms
up, so I would guess some part is getting excessively hot.  Get some cold spray
and gently spray some area of the video board.  Spray with the straw 2 or 3"
from board.  Cover the whole board a few times, do this within 30 seconds of the
problem appearing.  If there are no changes, power down, repeat but be more
agressive with cold spray, say 1".  If you do encounter a change, wait for the
problem and find the component(s) that are causing it.  When you find the
component, you'll decide then what to do about it? replace? supplement a heat
sink? trace the heat problem to some other source ie voltage too high?
>
> 2. Scope the pins to the CRT.  In general, there could be 3 grid voltages I
think they were Bias, Focus and Video?  Then there's the cathode and the heater.
I think most of these voltages are low, perhaps the bias voltage might be high?
but nothing a scope can't handle.  Stay away from the high voltage line that is
a single wire to the side of the tube, here you can find 15,000 volts (up to 35K
on large colour TV's).  While scoping, look for which line (if any) shifts it's
voltage.  If none of the lines shift voltage, then the problem could be with the
high voltage or the picture tube?  But I've never heard of a picture tube
causing this problem and a change in high voltage typically results in a loss of
focus.
>
> PS. I have a Kaypro in my repair queue too, but it will be a while before I
get to it.
>
> Good luck!
> Josh
>

Thanks very much!  Cold Spray, oh yeah! I remember that!
Still have some so that's something I can do.
Your instructions are a great start at this.  Though I know video from a
signaling point of view, I don't know much about the tube and its control. Soon
I may...

The 8/16 would have come with DSDS Shugart 850's, or the like (Qume..),
anyway.
bd

-------- Original Message --------
> From: "Richard Cini" <rich.cini@...>
> Sent: Saturday, November 17, 2012 12:34 PM
> To: "midatlanticretro@yahoogroups.com"
<midatlanticretro@yahoogroups.com>
> Subject: Re: [midatlanticretro] Lobo floppy drives
>
> Bill --
>
> I spoke to the seller. The drive came from his uncle's estate and the
only
> S100 computers he had were a Compupro System 8/16 or a Para Dynamics
2810.
> Interestingly, he also had a Sage IV, Computer Automation Alpha LSI/20
and
> an Osborne Executive.
>
> His best guess was that the drives were for the Compupro system. No idea
> what controller it may have been because I have a Disk 1 in my IMSAI and
it
> wasn't jumpered in a way that would have worked properly.
>
> Rich
>
> --
> Rich Cini
> Collector of Classic Computers
> Build Master and lead engineer, Altair32 Emulator
> http://www.classiccmp.org/cini
> http://www.classiccmp.org/altair32
>
>
> From:  B Degnan <billdeg@...>
> Reply-To:  "midatlanticretro@yahoogroups.com"
> <midatlanticretro@yahoogroups.com>
> Date:  Saturday, November 17, 2012 8:52 AM
> To:  "midatlanticretro@yahoogroups.com"
<midatlanticretro@yahoogroups.com>
> Subject:  Re: [midatlanticretro] Lobo floppy drives
>
>
>
>
>
>
> I'm hoping it's a trs 80 or maybe an actual LOBO computer.
>
> -------- Original Message --------
> > From: "Richard Cini" <rich.cini@...
<mailto:rich.cini%40verizon.net> >
> > Sent: Saturday, November 17, 2012 8:35 AM
> > To: "midatlanticretro@yahoogroups.com
> <mailto:midatlanticretro%40yahoogroups.com> "
> <midatlanticretro@yahoogroups.com
> <mailto:midatlanticretro%40yahoogroups.com> >
> > Subject: Re: [midatlanticretro] Lobo floppy drives
> >
> > Bill --
> >
> > I emailed the original seller to see if he knows the history of the
> unit.
> > When I hear back I'll let you know.
> >
> > Rich
> >
> > --
> > Rich Cini
> > Collector of Classic Computers
> > Build Master and lead engineer, Altair32 Emulator
> > http://www.classiccmp.org/cini
> > http://www.classiccmp.org/altair32
> >
> >
> > From:  B Degnan <billdeg@... <mailto:billdeg%40degnanco.com>
>
> > Reply-To:  "midatlanticretro@yahoogroups.com
> <mailto:midatlanticretro%40yahoogroups.com> "
> > <midatlanticretro@yahoogroups.com
<mailto:midatlanticretro%40yahoogroups.com>
> >
> > Date:  Friday, November 16, 2012 11:47 PM
> > To:  "midatlanticretro@yahoogroups.com
> <mailto:midatlanticretro%40yahoogroups.com> "
> <midatlanticretro@yahoogroups.com
> <mailto:midatlanticretro%40yahoogroups.com> >
> > Subject:  Re: [midatlanticretro] Lobo floppy drives
> >
> >
> >
> >
> >
> >
> > Interesting....the S800's in the Intel MDS 720 photoed on my web site
> also
> > have significantly different jumpers drive 0 vs. drive 1.  Maybe
that's
> how
> > it's done, or the boot drive has a lot of differences that the non
boot
> > drive.  I wonder what this drive was used for.
> > bd
> >
> > -------- Original Message --------

Hi,

A couple years ago I gave some old IBMPCs to someone named Bill. Sorry, I can't
remember the last name and can't find the email. Bill, you came by my house
twice and picked up stuff from me. If you (or someone else) that can drop by in
Street Md (21154)wants some more freebie "stuff", I am currently cleaning out my
basement.

Here is what I have so far:

MANY diagnostic diskettes with documentation on usage (mostly PS2)
DOS 5.0 books
Proprinter manuals (and a proprinter if wanted)
A couple of older boards from PC-XT-AT
6 or so OLD memory sticks
A handful of new 5 1/4 blank diskettes
Couple of OLD BIG heavy hard drives (probably 10 or 20 MEG)
5 NEW 3M DC2120 Mini Data Cartridges
7 NEW 8mm Data Cartridges
Appx 200 HD Diskettes (need formatting)

NON PC RELATED:
Archer Video Processor Cat# 15-1272A
Archer Video Special Effects Switcher Cat# 15-1274

That's it for now but will be adding more.

Let me know if this is something the group would want.

Thanks, John

Someone come visit! 1-5.

John,
That was me (Bill).  You live between my house and my wifes' family in
Maryland.  Feel Free to contact me directly with your address/phone and In
will stop by.
Bill

-------- Original Message --------
> From: "johnny_a_58" <johnny_a_58@...>
> Sent: Saturday, November 17, 2012 10:44 PM
> To: midatlanticretro@yahoogroups.com
> Subject: [midatlanticretro] "STUFF" For The Group
>
> Hi,
>
> A couple years ago I gave some old IBMPCs to someone named Bill. Sorry, I
can't remember the last name and can't find the email. Bill, you came by my
house twice and picked up stuff from me. If you (or someone else) that can
drop by in Street Md (21154)wants some more freebie "stuff", I am currently
cleaning out my basement.
>
> Here is what I have so far:
>
> MANY diagnostic diskettes with documentation on usage (mostly PS2)
> DOS 5.0 books
> Proprinter manuals (and a proprinter if wanted)
> A couple of older boards from PC-XT-AT
> 6 or so OLD memory sticks
> A handful of new 5 1/4 blank diskettes
> Couple of OLD BIG heavy hard drives (probably 10 or 20 MEG)
> 5 NEW 3M DC2120 Mini Data Cartridges
> 7 NEW 8mm Data Cartridges
> Appx 200 HD Diskettes (need formatting)
>
> NON PC RELATED:
> Archer Video Processor Cat# 15-1272A
> Archer Video Special Effects Switcher Cat# 15-1274
>
> That's it for now but will be adding more.
>
> Let me know if this is something the group would want.
>
> Thanks, John
>
>
>
>
> ------------------------------------
>
> Yahoo! Groups Links
>
>
>

OK, As promised, I finally got the manual scanned and turned into a proper PDF. 
It took a while, since I was unable to scan the large 11x17 pages on by myself.
It's a substantial manual, in the true 70's tradition. Since the manual is so
large, I ran the OCR, added links in the table of contents, and also added a
bookmark tree, to aid in navigation.

It's a huge file, so to simplify access, I have uploaded it to osiweb.org. Look
in the Manuals section.  The direct link is:
http://www.osiweb.org/manuals/hazeltine1500_maintenance.pdf

If you have a Hazeltine 15x0, you want this manual!

Bill, I believe this should have all the information you need to sort our your
issues with the 1510.

Enjoy!

Dave

--- In midatlanticretro@yahoogroups.com, "B. Degnan" <billdeg@...> wrote:
>
>
> >
> >
> > I have the service manual that covers the 1500-only board, and the
> combined 1500/1510/1520 board.  If you are trying to fix a terminal, you
> will find it very helpful, as it has troubleshooting flowcharts, theory of
> operation, etc.  I will be happy to send you a copy, and also will place a
> copy on osiweb.org.
> >
> > There's also a copy of the user manual on classiccmp, that may be useful
> for switch settings.
> >
> > I don't know if my Hazeltine works or not--with a new baby, I haven't had
> much time for my hobbies, and it's in storage.  It is "in the queue".
> However, I can't imagine it will be too difficult to bring it up.
> >
> > BTW, It might be nice to preserve (and host online) the 1500 and 1510
> firmware, and the 1520 firmware as well, if anyone has one of those.
> >
> > Dave
> >
>
> Dave,
> Sorry, I did not realize you were the OSI Dave...In exchange I will send
> you Vol 4.8 and Vol 4.12 of PEEK[65].
> Bill
>

This is great!  Thanks!

   You may want to make sure Al Kossow gets ahold of this for Bitsavers.

              -Dave

On 11/18/2012 03:17 PM, dfnr2 wrote:
>
>
>
> OK, As promised, I finally got the manual scanned and turned into a proper
PDF.  It took a while, since I was unable to scan the large 11x17 pages on by
myself. It's a substantial manual, in the true 70's tradition. Since the manual
is so large, I ran the OCR, added links in the table of contents, and also added
a bookmark tree, to aid in navigation.
>
> It's a huge file, so to simplify access, I have uploaded it to osiweb.org.
Look in the Manuals section.  The direct link is:
http://www.osiweb.org/manuals/hazeltine1500_maintenance.pdf
>
> If you have a Hazeltine 15x0, you want this manual!
>
> Bill, I believe this should have all the information you need to sort our your
issues with the 1510.
>
> Enjoy!
>
> Dave
>
> --- In midatlanticretro@yahoogroups.com, "B. Degnan" <billdeg@...> wrote:
>>
>>
>>>
>>>
>>> I have the service manual that covers the 1500-only board, and the
>> combined 1500/1510/1520 board.  If you are trying to fix a terminal, you
>> will find it very helpful, as it has troubleshooting flowcharts, theory of
>> operation, etc.  I will be happy to send you a copy, and also will place a
>> copy on osiweb.org.
>>>
>>> There's also a copy of the user manual on classiccmp, that may be useful
>> for switch settings.
>>>
>>> I don't know if my Hazeltine works or not--with a new baby, I haven't had
>> much time for my hobbies, and it's in storage.  It is "in the queue".
>> However, I can't imagine it will be too difficult to bring it up.
>>>
>>> BTW, It might be nice to preserve (and host online) the 1500 and 1510
>> firmware, and the 1520 firmware as well, if anyone has one of those.
>>>
>>> Dave
>>>
>>
>> Dave,
>> Sorry, I did not realize you were the OSI Dave...In exchange I will send
>> you Vol 4.8 and Vol 4.12 of PEEK[65].
>> Bill
>>
>
>
>
>
> ------------------------------------
>
> Yahoo! Groups Links
>
>
>


--
Dave McGuire, AK4HZ
New Kensington, PA

Good day now that InfoAge is back open. We had a couple of families visit with
very bright children.

Nick L. visited, and Jeff B./Jeff J. both came by too. Jeff B. returned our PET
2001 after fixing it at Degnan's recent tech weekend. Then he and Jeff J. and I
cleared some space in our storage area.

Doesn't sound like much, but we had a full day.

pictures?  Colors?


-------- Original Message --------
> From: "Kyle Owen" <kylevowen@...>
> Sent: Sunday, November 18, 2012 8:24 PM
> To: midatlanticretro@yahoogroups.com
> Subject: [midatlanticretro] GE SSL-22 LEDs
>
> I'm trying to track down some of these GE Solid State Lamp series LEDs
that
> GE produced in the early 1970s. I have a couple of burned out and flaky
> ones in my Intellec and would like to replace them with genuine parts.
The
> SSL-22 is the one listed in my schematic/part list.
>
> Any ideas would be certainly appreciated!
>
> Kyle

> New this year: worst movie contest!
>

I have something that I would like to show. It wasn't a movie, but a TV show
that lasted 10 episodes.  We don't have to watch all episodes, just a few.
Can I use that instead ?

Jeff Brace

>>> New this year: worst movie contest!

>> have something that I would like to show. It wasn't a movie, but a TV show
that lasted 10 episodes. We don't have to watch all episodes, just a few.

Okay.

>>> New this year: worst movie contest!

>> have something that I would like to show. It wasn't a movie, but a TV
>> show that lasted 10 episodes. We don't have to watch all episodes, just a
>> few.

> Okay.

Great ! I call dibs on "Fat Guy Stuck in Internet" It is 10 episodes lasting
about 12 minutes each. Totaling 2 hours.

*AND* it fits Bill Degnan's suggestion that it be technology related.

:-D

Hi,

Video can be either +ve or -ve depending on the system, I have no
knowledge of the Kaypro (is there a circuit somewhere ?), but the
following info from my basic video knowledge.

In a basic Black/white video signal (usually 1V p-p)  0% is the sync
pulse level, 33% is black, 100% is white. The Black level is usually
"clamped" in some way and the sync pulses both line and field are
imposed on on black as a pulse to 0%, the actual video is then left to
fill the remainder between 33% to 100%.

It would appear that your 100% "white" level is ok, but that the 33%
"black" level is changing so the flyback is seen on screen. Some systems
generate a "flyback blanking" signal from the video to turn the CRT beam
off during this period, if the Kaypro does it may have failed. Others
rely on the video to block the beam during flyback purely by the video
being below the 33% level.

As The Kaypro seems to get worse with time I suspect a component/s in
the video chain is drifting so that the 33% level drifts towards the
100% level, it could be either in the video generation or the display.

The basic structure of the video signal is good as the text is displayed
in the correct place and time, so the sync signals are correctly placed,
just that the "black" background level appears to drift up from black.

Basic video structure here - http://www.ni.com/white-paper/3020/en -
there are many examples on the web.

A circuit of the Kaypro video system would help, anybody ?.

Regards,
Mike


On 17/11/2012 06:52, Douglas wrote:
> I have a Kaypro II that shortly after power on the display looks like this:
>
> Bad Video
> <http://xa.yimg.com/kq/groups/14379032/sn/1525488828/name/1117020054.jpg>
>
> (stored in the DC Album of this group)
>
> For a few seconds, the background is normal;   nice and dark.
> The text stays the same.
> The the abnormal retracing fades up.
> The video intensity knob in the back changes the text brightness but
> does not affect the
> brightness of the abnormality.
>
> Googling on Kaypro video subjects turned up no definitive trouble
> shooting/trouble spots.
> (some just say swap out the video board...)
> Need some pointers, thanks in advance for any shared wisdom!
>
>

I'm hardly searching for old OS/2-Software

I'm searching for MS and IBM OS/2 1.x and the SDK's and DDK's.
Also the MS Programmer's Library CD-ROM's.

Can someone help me?

With best regards.

reini1976

>> I'm hardly searching for old OS/2-Software. I'm searching for MS and IBM OS/2
1.x and the SDK's and DDK's.. Also the MS Programmer's Library CD-ROM's. Can
someone help me? With best regards. reini1976

Welcome to our list. Please introduce yourself.

-------- Original Message --------
> From: "Evan Koblentz" <evan@...>
> Sent: Monday, November 19, 2012 9:18 AM
> To: "MARCH Yahoo Midatlanticretro" <midatlanticretro@yahoogroups.com>
> Subject: Re: [midatlanticretro] [Wanted] Old OS/2 Software
>
> >> I'm hardly searching for old OS/2-Software. I'm searching for MS and
IBM OS/2 1.x and the SDK's and DDK's.. Also the MS Programmer's Library
CD-ROM's. Can someone help me? With best regards. reini1976
>
> Welcome to our list. Please introduce yourself.
>


And what language (s), I assume you want the C Developers Workset/2  ?

bd

--- In midatlanticretro@yahoogroups.com, Kyle Owen <kylevowen@...> wrote:

> I am not 100% sure they are the SSL-22s as listed in the schematic/parts
> list I have for the 4 MOD 40, though I would assume they are.
>

I found a datasheet with a Google search. I sent it to you by private email.
They very, very, VERY much look like red LED's to me, maybe shorter in height
than some. If you measure the dimensions of yours, I can check my junk box to
see if I have some of similar dimensions. Others of course can do likewise.

Herb Johnson

On 11/18/2012 07:52 PM, Kyle Owen wrote:
> I'm trying to track down some of these GE Solid State Lamp series LEDs
> that GE produced in the early 1970s. I have a couple of burned out and
> flaky ones in my Intellec and would like to replace them with genuine
> parts. The SSL-22 is the one listed in my schematic/part list.
>
> Any ideas would be certainly appreciated!

   I am almost positive that I have a pile of these.  I will go take some
pics and send them to you for positive identification.

              -Dave

--
Dave McGuire, AK4HZ
New Kensington, PA

Thank you Dave - on a related note I found the two OSI Peek[65]'s that
you're missing.  I will scan and send to you asap.
Bill

-------- Original Message --------
> From: "dfnr2" <dfnr2@...>
> Sent: Sunday, November 18, 2012 3:46 PM
> To: midatlanticretro@yahoogroups.com
> Subject: [midatlanticretro] Re: Hazletine 1510
>
> OK, As promised, I finally got the manual scanned and turned into a
proper PDF.  It took a while, since I was unable to scan the large 11x17
pages on by myself. It's a substantial manual, in the true 70's tradition.
Since the manual is so large, I ran the OCR, added links in the table of
contents, and also added a bookmark tree, to aid in navigation.
>
> It's a huge file, so to simplify access, I have uploaded it to
osiweb.org. Look in the Manuals section.  The direct link is:
http://www.osiweb.org/manuals/hazeltine1500_maintenance.pdf
>
> If you have a Hazeltine 15x0, you want this manual!
>
> Bill, I believe this should have all the information you need to sort our
your issues with the 1510.
>
> Enjoy!
>
> Dave
>
> --- In midatlanticretro@yahoogroups.com, "B. Degnan" <billdeg@...>
wrote:
> >
> >
> > >
> > >
> > > I have the service manual that covers the 1500-only board, and the
> > combined 1500/1510/1520 board.  If you are trying to fix a terminal,
you
> > will find it very helpful, as it has troubleshooting flowcharts, theory
of
> > operation, etc.  I will be happy to send you a copy, and also will
place a
> > copy on osiweb.org.
> > >
> > > There's also a copy of the user manual on classiccmp, that may be
useful
> > for switch settings.
> > >
> > > I don't know if my Hazeltine works or not--with a new baby, I haven't
had
> > much time for my hobbies, and it's in storage.  It is "in the queue".

> > However, I can't imagine it will be too difficult to bring it up.
> > >
> > > BTW, It might be nice to preserve (and host online) the 1500 and 1510

> > firmware, and the 1520 firmware as well, if anyone has one of those.
> > >
> > > Dave
> > >
> >
> > Dave,
> > Sorry, I did not realize you were the OSI Dave...In exchange I will
send
> > you Vol 4.8 and Vol 4.12 of PEEK[65].
> > Bill
> >
>
>
>
>
> ------------------------------------
>
> Yahoo! Groups Links
>
>
>

On 11/18/2012 07:52 PM, Kyle Owen wrote:
> I'm trying to track down some of these GE Solid State Lamp series LEDs
> that GE produced in the early 1970s. I have a couple of burned out and
> flaky ones in my Intellec and would like to replace them with genuine
> parts. The SSL-22 is the one listed in my schematic/part list.

    How do these look for a match?  They seem to match the description
you gave in your other email.

    http://www.neurotica.com/misc/leds-1.jpg

    I have other rare LEDs if these don't match. (I have a bit of an LED
fetish)

             -Dave

--
Dave McGuire, AK4HZ
New Kensington, PA

--- In midatlanticretro@yahoogroups.com, "B. Degnan" <billdeg@...> wrote:
>
> Thank you Dave - on a related note I found the two OSI Peek[65]'s that
> you're missing.  I will scan and send to you asap.
> Bill

Bill, That would be fantastic.  Thanks so much.

Dave


>
> -------- Original Message --------
> > From: "dfnr2" <dfnr2@...>
> > Sent: Sunday, November 18, 2012 3:46 PM
> > To: midatlanticretro@yahoogroups.com
> > Subject: [midatlanticretro] Re: Hazletine 1510
> >
> > OK, As promised, I finally got the manual scanned and turned into a
> proper PDF.  It took a while, since I was unable to scan the large 11x17
> pages on by myself. It's a substantial manual, in the true 70's tradition.
> Since the manual is so large, I ran the OCR, added links in the table of
> contents, and also added a bookmark tree, to aid in navigation.
> >
> > It's a huge file, so to simplify access, I have uploaded it to
> osiweb.org. Look in the Manuals section.  The direct link is:
> http://www.osiweb.org/manuals/hazeltine1500_maintenance.pdf
> >
> > If you have a Hazeltine 15x0, you want this manual!
> >
> > Bill, I believe this should have all the information you need to sort our
> your issues with the 1510.
> >
> > Enjoy!
> >
> > Dave
> >
> > --- In midatlanticretro@yahoogroups.com, "B. Degnan" <billdeg@>
> wrote:
> > >
> > >
> > > >
> > > >
> > > > I have the service manual that covers the 1500-only board, and the
> > > combined 1500/1510/1520 board.  If you are trying to fix a terminal,
> you
> > > will find it very helpful, as it has troubleshooting flowcharts, theory
> of
> > > operation, etc.  I will be happy to send you a copy, and also will
> place a
> > > copy on osiweb.org.
> > > >
> > > > There's also a copy of the user manual on classiccmp, that may be
> useful
> > > for switch settings.
> > > >
> > > > I don't know if my Hazeltine works or not--with a new baby, I haven't
> had
> > > much time for my hobbies, and it's in storage.  It is "in the queue".
>
> > > However, I can't imagine it will be too difficult to bring it up.
> > > >
> > > > BTW, It might be nice to preserve (and host online) the 1500 and 1510
>
> > > firmware, and the 1520 firmware as well, if anyone has one of those.
> > > >
> > > > Dave
> > > >
> > >
> > > Dave,
> > > Sorry, I did not realize you were the OSI Dave...In exchange I will
> send
> > > you Vol 4.8 and Vol 4.12 of PEEK[65].
> > > Bill
> > >
> >
> >
> >
> >
> > ------------------------------------
> >
> > Yahoo! Groups Links
> >
> >
> >
>

On 11/19/2012 11:39 PM, Kyle Owen wrote:
>     How do these look for a match? They seem to match the description
>     you gave in your other email.
>
>     http://www.neurotica.com/misc/leds-1.jpg
>
>     I have other rare LEDs if these don't match. (I have a bit of an LED
>     fetish)
>
>
> Thanks for checking on that, Dave! I'm on vacation right now, and thus
> can't access the front panel to the Intellec. However, when I get back,
> I'll let you know for sure. I think the top one may be it, especially if
> it's shorter than the "standard" 5mm LEDs of today. It's important that
> they are shorter, as the top of the LEDs rest right up against the front
> panel. I do recall it having a lip at the base, so I'd think we can rule
> the other two out.

    Sounds good.  I have a bunch of others that we can go through until
we find the right one.

> I too have some vintage/uncommon LEDs (namely other GE parts in the
> TO-18 package, but also some 3-leaded ones in plastic),

    Neat!  I love LEDs in general, but I especially like metal-encased
LEDs.  I have some nice old Russian ones, red and green, that look very
much like TO-18 packages but aren't quite the same size.  They look
great.  I'm looking for the "right" project for a bunch of those.

> as well as 2000
> infrared LEDs. I'm not sure what I'll do with those yet, but I'm
> thinking a large infrared illuminator for nighttime vision will be in
> the works one of these days. A local company that made remotes and other
> stuff for in-home audio systems was liquidating, and hence, I got a
> bunch of new stuff at very good prices.

    Fun!!

                -Dave

--
Dave McGuire, AK4HZ
New Kensington, PA

What's a fair price for a Microsolutions Compaticard I, with box,
manual and software diskette?  Someone is interested in mine.


Mike Loewen 		 mloewen@...
Old Technology       http://sturgeon.css.psu.edu/~mloewen/Oldtech/