Re: http://hackaday.com/2016/05/29/dragging-teletypes-into-the-21st-century/?utm_source=feedburner_medium=feed_campaign=Feed%3A+hackaday%2FLgoM+%28Hack+a+Day%29_content=FeedBurner+user+vie

[wulfman]

I did not start the fire.


On 5/29/2016 6:43 PM, Fred Cisin wrote:
> On Sun, 29 May 2016, wulfman wrote:
>> You either have a stick up your ass, are too stupid to know the
>> difference between a malware link and a real link OR
>> both.
>> Now go back to your worrying about the 0.1% of links that contain
>> malware.
>
> I'm glad to hear it.
>
> OK, initially, I was glad that you've never encountered it.
> But, your current rude behavior changes that, to being glad
> that you have that perception of it.
>
>
>
>
>
>


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Re: http://hackaday.com/2016/05/29/dragging-teletypes-into-the-21st-century/?utm_source=feedburner_medium=feed_campaign=Feed%3A+hackaday%2FLgoM+%28Hack+a+Day%29_content=FeedBurner+user+vie

[wulfman]

You either have a stick up your ass, are too stupid to know the
difference between a malware link and a real link OR
both.

Now go back to your worrying about the 0.1% of links that contain
malware.



On 5/29/2016 5:48 PM, Fred Cisin wrote:
 http://hackaday.com/2016/05/29/dragging-teletypes-into-the-21st-century/?utm_source=feedburner_medium=feed_campaign=Feed%3A+hackaday%2FLgoM+%28Hack+a+Day%29_content=FeedBurner+user+view

>>> Did you have anything to say about it?
>>> Or are you just dumping a URL on us?
>
> On Sun, 29 May 2016, Evan Koblentz wrote:
>> Oh come on. He didn't do anything wrong. The link is clearly on-topic
>> and directly relevant to our hobby.
>> Yeesh.
>
> 1) It was formatted as a malware offer, not as a discussion item,
> with NO apparent human generated content.
> Am I the only one here who receives emails that consist of malware links?
>
>
> 2) I am not reading my email in a web browser.  It is not much
> difficulty to copy the URL into a browser, but I'd like a mention of
> what it is before being told to "go there".
>
>
> It only takes a few words to explain why we would be interested in it,
> and some sign that it is from our friend, not a bot generated spoof to
> get people to a hijacked site.   (ransomware upped the stakes on such
> things)
>
>
>
>
>


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Re: http://hackaday.com/2016/05/29/dragging-teletypes-into-the-21st-century/?utm_source=feedburner_medium=feed_campaign=Feed%3A+hackaday%2FLgoM+%28Hack+a+Day%29_content=FeedBurner+user+vie

[wulfman]

I figured some of you might have had an interest. Excuse me if i was wrong.



On 5/29/2016 5:02 PM, Fred Cisin wrote:
> On Sun, 29 May 2016, wulfman wrote:
>> http://hackaday.com/2016/05/29/dragging-teletypes-into-the-21st-century/?utm_source=feedburner_medium=feed_campaign=Feed%3A+hackaday%2FLgoM+%28Hack+a+Day%29_content=FeedBurner+user+view
>>
>> -- 
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>
> Did you have anything to say about it?
> Or are you just dumping a URL on us?
>
>
>


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http://hackaday.com/2016/05/29/dragging-teletypes-into-the-21st-century/?utm_source=feedburner_medium=feed_campaign=Feed%3A+hackaday%2FLgoM+%28Hack+a+Day%29_content=FeedBurner+user+view

[wulfman]

http://hackaday.com/2016/05/29/dragging-teletypes-into-the-21st-century/?utm_source=feedburner_medium=feed_campaign=Feed%3A+hackaday%2FLgoM+%28Hack+a+Day%29_content=FeedBurner+user+view


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old stuff

[wulfman]

old stuff in the news

http://electronicdesign.com/embedded/qa-evan-koblentz-talks-about-vintage-computer-federation?NL=ED-001=ED-001_20160413_ED-001_944=42=article_1_b_rid=CPG0500127642_campaign=5851_medium=email=9b5cc472b42e4e158e087e66274f5deb

http://www.vcfed.org/



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Re: Voltage regulator with alternate voltage source...

[wulfman]

https://www.fairchildsemi.com/datasheets/LM/LM7805.pdf

http://www.ti.com/lit/ds/symlink/lm78l05.pdf ( page 8 gives you the
internals for a low power version )

Nothing in the data sheet saying you cant apply voltage to the output.

As per the low power version circuit diagram i cant see how you can do
any damage to it
I was not able to find an internal diagram for the higher power version but
i am sure its close to the same circuit just larger pass transistors.

I took a new regulator and measured the output pin to ground with my
trusty ohmmeter
on the diode setting and had no reading. If you think about it the
output on the regulator is a pass transistor
and the output to ground will be in effect a diode that will not allow
current to pass from output to ground.


My last comment still stands. i doubt you will cause any ill effects to
your regulator.


I personally have done this to some old arcade boards with no ill effects.


On 4/7/2016 6:08 PM, drlegendre . wrote:
> "...if you leave the unregulated rail _unattached_ and put +5
> switcher straight onto the regulated +5 rail..."
>
> My error, I read that as "attached".
>
> In any event, just lift both the 7805 IN and OUT pins, and then supply
> known-solid +5DC between the OUT and GND pads on the board.
>
> No, you can't feed the IN pin with +5V, for as others have mentioned,
> the 7805 has a minimum dropout of 2V or so.
>
> On Thu, Apr 7, 2016 at 4:03 PM, William Donzelli 
> wrote:
>
>> Per his description, the 7805's input will be open. It will not try to
>> source any current, as it will have none to give.
>>
>> I suppose there might be a little leakage.
>>
>> --
>> Will
>>
>> On Thu, Apr 7, 2016 at 4:58 PM, drlegendre .  wrote:
>>

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Re: Voltage regulator with alternate voltage source...

[wulfman]

You should be just fine.

On 4/7/2016 1:38 PM, Bill Sudbrink wrote:
> If you have a circuit which is normally designed to
> operate with an unregulated supply, through a regulator...
> say unregulated +8 through a 7805 to a regulated +5 and
> you want to test it independent of the +8 supply, if
> you leave the unregulated rail unattached and put +5
> switcher straight onto the regulated +5 rail, will you
> damage the 7805?  Clearly the VIN is open, but the ground
> pin will still be attached.  Would this push voltage
> back through and screw things up?
>
> Thanks,
> Bill S.
>
>
>


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Re: Cloning a PCB

[wulfman]

I reverse engineer boards as a hobby i produce full schematics and can
also replicate PC boards
I have the boards produced in china. should be cheaper now that china is
crashing and burning

just takes time and money


On 1/7/2016 3:11 PM, Glen Slick wrote:
> On Thu, Jan 7, 2016 at 1:33 PM, Mike Stein  wrote:
>> Any suggestions/hints/experience/links regarding the best/easiest way to 
>> clone a (two-sided) PCB, i.e. create a Gerber or equivalent file from a PCB 
>> layout instead of a schematic?
>>
> Easiest? Throw some money at having someone do the work for you.
>
> Grant at http://altairkit.com says that he used these people to scan
> and replicate some vintage PCBs: http://www.mhtest.com/scanning.shtml
>
> No idea how much that costs. Probably in the if you have to ask you
> can't afford it range.
>


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Re: Wanted: Specific Mallory cap...

[wulfman]

   supply a picture if you can

On 1/6/2016 10:52 AM, Bill Sudbrink wrote:
> Hi all,
>
> I am in the process of restoring/recreating a linear
> PS as part of a project and I would like to use the
> original parts if possible.  I'm looking for six
> Mallory axial electrolytic capacitors.  The physical
> dimensions are 11mm in diameter by 44mm in length.
> They have a clear plastic wrap, so the aluminum
> silver color shows through.  The printing on them
> goes around the circumference (not end to end) and
> reads:
>
>+-M-+
> 2000 MF 10 V
>  20-48923
>
> Electrically, they are (were) 2000uf, 10 volt.  My
> bet is that these are mil-spec versions of Mallory's
> TT10X2000 capacitor.  They physically match some
> Mallory TT15X1000 caps that I have in my parts box.
> I've been "beating the bushes" for a while now with
> no luck on the "20-48923" part number.  I've also
> contacted all of the web site owners that claim to
> have TT10X2000s.  They have all come back with "well,
> we don't actually seem to have that part after all".
>
> If anyone has either of the above, I'll pay a good
> price for them.  They don't have to be in operational
> condition electronically, I'll "restuff" them if
> necessary.
>
> Thanks,
> Bill Sudbrink
>
>
>


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Re: TOP POSTING

[wulfman]

Thunderbird has calendars now.


On 12/11/2015 11:47 AM, Dave G4UGM wrote:
>
>> -Original Message-
>> From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Mouse
>> Sent: 10 December 2015 01:32
>> To: cctalk@classiccmp.org
>> Subject: Re: TOP POSTING (was: RE: Best 200 buck I have ever spent!!! Deal
>> of a lifetime!!!
>>
 All the email clients I have are top posting
>> There are good civilized email clients available in plenty; if you don't
> happen
>> to have any, I can only assume you can't be bothered.
>>
> I have searched high and low for a decent e-mail client for Windows. All the
> ones I have tried suck in some way. Outlook will no longer let me post
> in-line on HTML mails. FreeBird won't look at calendars. Em is just a pain.
>
>
 get with the times
>> No.
>>
>> If your email client defaults to top-posting, it probably also defaults to
> no-
>> trimming, which is possibly an even greater offense; take a few moments to
>> trim your quotes for relevance and put your text where it belongs (which
> is
>> inline after the parts you're responding to, not just moved to the
> bottom).  If
>> your email client won't let you do that, it is just plain broken and has
> no place
>> in civilized discourse.
>>
>> Or, of course, feel free to be as obnoxious as you want in how you format
>> your outbound email.  But everyone else is equally free to ignore you.  I
>> know I certainly am likely to, if you insist on top-posting and/or not
> trimming.
>>> Top posting implies that you are only interested in computers from the
>>> 1990s or newer.
>> Actually, it's just plain arrogant (and/or rude).  I've written up a piece
> which
>> describes how I see this, which is at ftp.rodents-
>> montreal.org:/mouse/blah/2012-09-26-1a.txt; the last three paragraphs are
>> especially relevant to this point.
>>
>> /~\ The ASCII  Mouse
>> \ / Ribbon Campaign
>>  X  Against HTML mo...@rodents-montreal.org
>> / \ Email!7D C8 61 52 5D E7 2D 39  4E F1 31 3E E8 B3 27 4B
>


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Re: Anyone interested in old (PDP-8 driven) Radio Automation hardware?

[wulfman]

Before one opens ones mouth its best to become informed.

https://en.wikipedia.org/wiki/Fidelipac


yes we had 4 track nab carts


On 12/9/2015 7:24 AM, Mike Boyle wrote:
> Do you have photos?
>
> On Wed, Dec 9, 2015 at 9:18 AM, Dale H. Cook <radiot...@juno.com> wrote:
>
>> At 11:53 PM 12/8/2015, wulfman wrote:
>>
>>> The "carts" were 4 track tapes.
>> They were not. They were either 2 track for mono or 3 track for stereo,
>> and they were physically different from, and not interchangeable with,
>> consumer tape cartridges. Radio carts were introduced in, IIRC, the early
>> 1960s (I would have to check my broadcast equipment catalogs) and predate
>> the Lear 8 track cartridges.
>>
>> Dale H. Cook, Radio Contract Engineer, Roanoke/Lynchburg, VA
>> http://plymouthcolony.net/starcityeng/index.html
>>
>>
>


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Re: Anyone interested in old (PDP-8 driven) Radio Automation hardware?

[wulfman]

The "carts" were 4 track tapes. it was a popular radio station
automation system back in the old days.
The first radio station i engineered at used them and i was QUICK to
convert them to a computer based
automation system way ahead of most other stations.



On 12/8/2015 8:56 PM, Josh Dersch wrote:
> Hi all --
>
> I have recently acquired a PDP-8/m system that was used to drive a radio
> automation rig (very very similar to this: http://www.bowkera.com/kcbs1.htm
> ).
>
> My understanding is that this system hooked to banks of what were
> essentially 8-track tape drives, each of which held a short loop of tape
> (containing a song, an ad, call info, etc.) and the 8/m was programmed with
> a playlist of sorts so that even in the early 70s you didn't need to have a
> real DJ on premises to run a radio station.  (I had no idea this sort of
> thing went back that far!)
>
> This one was used at KRDU (Fresno's Christian Radio).  At any rate, it's
> neat hardware.  All I have is the 8/m, a custom front panel (as seen in the
> pictures on the site I linked above) and a bank of Omnibus backplanes
> holding cards that would drive the tapes and mix audio.
>
> I really have no use for the tape-control / audio mixing hardware since I
> don't have the tapes and I'm not *really* planning on running an automated
> radio station out of my basement (though it does sound fun).  I'm not about
> to scrap the stuff (it's at least useful for parts) but I thought I'd see
> if anyone out there could actually make use of it for its intended purpose.
>
> - Josh
>


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Emulation

[wulfman]

I know most of you have or are searching for the real thing.
But for those of you that still don't have what your looking for, the arcade
emulator  MAME has now included most old computers in their emulation
program.

I have seen everything from apple computers to vax systems, while
searching for game roms.

Most are still non functioning as of this version but they are working
on making them work.

one that does work is a pdp1.

http://mamedev.org/  emulator
http://www.mameui.info/ windows gui front end
http://retroroms.net   most current list of roms in the download
section, free reg required

I have been collecting roms for years for repair of my huge collection
of game board
but this is the first time i have seen the retro computers in the rom sets.
maybe if they are in need of a rom dump for some obscure computer one of
you have
you can contribute to the scene by dumping and sending the rom they are
looking for.

As always happy retro computing.

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Re: Fw: new message

[wulfman]

dont open this link.


On 11/13/2015 8:26 AM, kateli...@trouts.org wrote:
> Hey!
>
>  
>
> New message, please read 
>
>  
>
> kateli...@trouts.org
>
>


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Re: Testing H7864 (MicroVAX II) PSU With No Load

[wulfman]

its a switcher.


On 11/1/2015 10:37 AM, Robert Jarratt wrote:
>
>> -Original Message-
>> From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Paul
> Koning
>> Sent: 01 November 2015 16:52
>> To: General Discussion: On-Topic and Off-Topic Posts
>> Subject: Re: Testing H7864 (MicroVAX II) PSU With No Load
>>
>>
>>> On Nov 1, 2015, at 7:12 AM, Robert Jarratt 
>> wrote:
>>> Some of you may recall I have a faulty H7864 PSU, which failed a while
>>> ago with a loud pop, but no obvious physical damage. I replaced the
>>> blown transistor (on the primary side of the large transformer), but
>>> when I power it on,  the transistor does not switch and there is no
>>> output, so clearly there is still a problem somewhere.
>>>
>>>
>>>
>>> I have been spending some time drawing schematics for almost the whole
>>> thing. I am now at the point where I intend to compare it with a
>>> working one, probing each one side by side, to see up to where it
>>> appears to be working. It would be awkward to have two dummy loads,
>>> just for lack of suitable equipment. Does anyone know if it is safe to
>>> run these PSUs with no load? Would my testing be valid without a load?
>> If it has a transistor at the primary side, and a high frequency
> transformer, it's
>> a switching supply.  Those want a load, usually.  Especially the older
> ones.
>> If it has a laminated iron transformer, big electrolytics for filtering,
> and
>> transistors at the secondary side, it's probably a linear regulator
> supply.  Those
>> don't need a load.  You may want to do full testing under load to observe
>> correct regulation, but for initial testing you can test them without.
>>
>> Linear supplies are older; I think by the time of VAX you're likely to see
>> switchers (with the possible exception of first generation stuff like the
> 780, I
>> don't remember if those big supplies are linear or switchers).
>>
>>  paul
>
> Hmmm Until your email I was pretty confident this was a switcher. But
> your description of a linear PSU seems to fit. I have posted three photos of
> the main board here: http://1drv.ms/1KQkTBp can you tell from that what kind
> of PSU it is?
>
> The big TO-3 on the left is the one that I found had failed. The replacement
> does not appear to be switching, but I don't know why.
>
> Regards
>
> Rob
>
>


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Re: PDP 8 panels. Feedback

[wulfman]

To effectively drill in plastics you need to run the drill press on the
highest speed you can
and use a freshly sharpened drill bit.

It kinda melts its way through.

On 10/26/2015 8:28 PM, Bob Rosenbloom wrote:
> On 10/26/2015 8:05 PM, rod wrote:
>> Hi Guys
>> I need to get some comments on the following.
>>
>> 1. Would a matt finish be better than the current glossy one?
>> 2. Should the round holes be pre-drilled?
>>
>> Regards
>> Rod
>
> I would prefer the holes be drilled. It's not easy to drill the
> plastic as I found out, with small chips around the edges.
> And that was with a bit made for plastic.
>
> Bob
>


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Re: Model 152 PSU dummy loads - Re: NeXT Cube - powers on briefly then off again

[wulfman]

Distilled water will not conduct. Its a perfect insulator. It will work
fine.


On 10/26/2015 7:45 AM, Jerry Weiss wrote:
> Water in the dummy load?  Water cooled - sure.  Water immersed?  Even 
> though I see it posted on the web, i have may doubts it would be a stable 
> method.
>
> Oil  is the usual medium here. Excluding of course the pre-1980 
> transformer oils that were notorious for having contaminated PCB’s within or 
> anything with flammability at working temperatures.
>
>
> Jerry Weiss
> WB9MRI
>
>
>> On Oct 26, 2015, at 9:27 AM, Paul Koning  wrote:
>>
>>
>>> On Oct 26, 2015, at 9:43 AM, Toby Thain  wrote:
>>>
>>> On 2015-10-26 1:02 AM, Brian Archer wrote:
 Even a 10W resistor will get really hot. I embed two 5W resistors into a
 pentium class CPU cooler for a good compromise on space/thermal concerns.
>> My favorite low tech dummy load is the one my father came up with: a couple 
>> of resistors (carbon composite is best, carbon film or metal film will do), 
>> 1-2 watt size, in a jar filled with water.  Works just fine for 100 watts or 
>> so, and is useable not just for power supplies but for HF transmitter 
>> testing.
>>
>>  paul
>>
>>
>


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Re: Looking for Serial Terminals

[wulfman]

a decent deal for a new terminal
http://www.ebay.com/itm/WYSE-55-Terminal-NEW-Green-Terminal-/151828013094?hash=item2359a7a026:g:wPkAAOSwjVVVoAQY
lot more used on ebay too


On 10/19/2015 11:16 AM, Brian Adams wrote:
> Hi there,
>
> I've been wanting to get a nice serial terminal to use with my old systems 
> (mostly UNIX) for a while now, but I haven't managed to find anything locally.
> Over the past few years I've been to thrifts, garage sales, surplus shops... 
> But I haven't found any. This sort of surprises me, as Toronto isn't a small 
> town.
>
> Is there anybody around the Toronto area that has a few extra dumb terminals 
> lying around, or does anybody know of a good source for them around the 
> Toronto area?
>
> Thanks
>
> -Brian
>


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IBM 1401

[wulfman]

there is a cool video in the hackaday link below

http://hackaday.com/2015/10/19/repairing-55000-of-vintage-core-memory/?utm_source=feedburner_medium=feed_campaign=Feed%3A+hackaday%2FLgoM+%28Hack+a+Day%29_content=FeedBurner+user+view

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retro computers in your browser

[wulfman]

http://hackaday.com/2015/09/28/roundup-retro-computers-in-your-browser/?utm_source=feedburner_medium=feed_campaign=Feed%3A+hackaday%2FLgoM+%28Hack+a+Day%29_content=FeedBurner+user+view

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Re: IBM 026

[wulfman]

rule #1
Dont feed the trolls.


On 9/18/2015 6:33 PM, Don North wrote:
> Lucky it is not just scrap metal then, it is a probably restorable 026
> keypunch, of which very few still exist.
>
> By your criteria any classic computer is worth well less than $99, as
> the metal content is much smaller than an 026.
>
> And then any car from the 50s or 60s is only worth a few hundred
> dollars, as that is its value in 'scrap metal'.
>
> Lots of objects that exist are worth more than the value of their
> commodity elements.
>
> Your 'scrap value' is about $160 according to this:
> http://www.datagenetics.com/blog/april12011/
>
> On 9/18/2015 6:10 PM, Able Baker wrote:
>> Some people have more money than common cents...However, you only
>> overpaid for it by about $800.As scrap metal it's probably worth
>> about $99.99
>>From: Todd Goodman 
>>   To: General Discussion: On-Topic and Off-Topic Posts
>> 
>> Cc: j...@mercury.lcs.mit.edu
>>   Sent: Friday, September 18, 2015 7:59 PM
>>   Subject: Re: IBM 026
>> * Noel Chiappa  [150918 07:25]:
>>
>>
>>>  > Well, here's an 029 (not quite what the OP was looking for,
>>> but good
>>>  > enough for you all, I expect) for a not insane amount of money:
>>>  >  http://www.ebay.com/itm/281796720725
>>>
>>> So I see this sold - anyone know who got it?
>>>
>>>  Noel
>> Yes.  I did.  I'll let people know what's up when I receive it.  Though
>> i don't expect to get much time with it for a while.
>>
>> Todd
>>
>>
>>   
>
>


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Re: Reading ROMs

[wulfman]

They do not make bipolar proms any more.
you can find them on ebay sometimes
some functions can be emulated by fast pals.
but not code storage.
Old arcade games use them for all sorts of things.
some old arcade game repair sites also sell the ICs

http://www.ebay.com/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=82S129&_sacat=0


On 9/6/2015 4:38 PM, Marc Verdiell wrote:
> Jay, Mike, John,
> Thanks for the helpful information. It just dawned onto me that these were
> "write once" PROMs, not modern EEPROMs. Duh. So you get one shot at doing it
> right...
> The Data I/Os on ebay seem to be quite a bit more than $100 right now, I'll
> keep looking. I guess none of the modern ebay Chinese ones would do? Also
> where can you get the blanks? Any modern equivalents here too?
> Marc
>
> -
> Jay West wrote:
> The Data I/O 29B works perfectly for those old fusable link proms.
>
> John Robertson wrote:
> One can pick up a Data I/O 29B and Unipak II off eBay starting around 
> $100USD (ish). There is a very good support group on yahoo groups:
> https://groups.yahoo.com/neo/groups/Data_IO_EPROM
>
> Mike Loewen wrote:
> I used a Data I/O 29B programmer to burn the PROMs, with a Unipak 2B. 
> The blank PROMs were variously Signetics N82S141, MMI 6341-1 and National 
> 74S474. Along with the 12821A HP-IB board, you also need a Boot Loader 
> PROM, 12992H (12992-80004). The boot loader PROM is a Signetics N82S129 or 
> equivalent. For installation information about the firmware PROMs, see 
> manual 12791-90001 (HP 1000 M/E/F-Series Firmware Installation and 
> Reference Manual). For boot loader information, see manual 12792-90001 (HP 
> 12992 Loader ROMs Installation Manual).
> 
>
>


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Re: Data I/O 29B

[wulfman]

thats it. I hardly ever use the data IO unless i need to burn a bipolar prom
i have anther prom programmer much newer that does everything except
bipolar proms

thanks rik been a while since i used it and forget the name




On 8/22/2015 6:31 AM, Rik Bos wrote:
 The software is pl.exe  promlink.
 On the dataio yahoo group you can find the link and lots of info regarding 
 data io equipment.
 I use it a lot for programming proms, like the HP 1000 boot proms.

 -Rik

 -Oorspronkelijk bericht-
 Van: Noel Chiappa j...@mercury.lcs.mit.edu
 Verzonden: ‎22-‎8-‎2015 15:17
 Aan: cctalk@classiccmp.org cctalk@classiccmp.org
 CC: j...@mercury.lcs.mit.edu j...@mercury.lcs.mit.edu
 Onderwerp: Re: Data I/O 29B

  From: wulfman

  I have a modified dos program that talks to the data i/o
  its the one that they sold with the unit but only ran on a 286
  ...
  the modified one i have works in windows 7 in a dos box

 I seem to recall that I downloaded some software to run my 29B (although I
 have yet to work with it extensively), and that it did run in a DOS box under
 Windows 98? Is that the '286' one you're referring to?

 If so, maybe that won't run in a DOS box under the later versions of Windows?
 Or maybe I have a different program from the one you're talking about? (Or
 maybe I somehow downloaded an already-fixed version?)

  if your interested i can send it to you

 Other than running under Windows 7, does it have any other improvements?
 If so, I might be interested.

 Whatever the case, if you would like someone to host it for open download,
 let me know.

   Noel



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Re: Data I/O 29B

[wulfman]

I have a modified dos program that talks to the data i/o its the one
that they sold with the unit but only ran on a 286
or lower system the modified one i have works in windows 7 in a dos box
not tried it on a win8 or 10 system but i dont see why it would not work

if your interested i can send it to you


On 8/21/2015 8:05 PM, Randy Dawson wrote:
 Something must be wrong here, the 29B/unipak is very easy to use.
 I was the rep in Houston (USDATA) and I must have sold 50 of these.  It went 
 for $4500 with the unipak.

 A typical demo we would plug in a dumb terminal, its a lot more effective 
 demo to select a device than from the keypad.

 One of these I sold to Gateway Technologies, Rod Canion.  The demo and sale 
 went down at a pancake house on the Southwest Freeway.
 They used it to suck the BIOS out of the IBM PC, and form Compaq Computer.

 Randy

 Subject: Re: Data I/O 29B
 To: cctalk@classiccmp.org
 From: a...@bitsavers.org
 Date: Fri, 21 Aug 2015 18:45:12 -0700



 On 8/21/15 5:33 PM, Billy Pettit wrote:
 This is the poorest documentation I've ever seen on a piece of test 
 equipment.

 The problem is they went through at least three generations of 
 programming packs (individual device, unipak, unipack2/2A/2B)

 There is a text file (unipak2.txt) that I sent you that lists
 about 1000 devices along with the family and pin adapter.

 I gave up on anything earlier than the 2900/3900/Unisite a LONG
 time ago. I'd just offer them to people in the bay area and not
 even bother testing them. I should have the docs on bitsavers for
 them.

 


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Re: Data I/O 29B

[wulfman]

i got a few of them and have the data somewhere i will try to dig it up
and send u off list


On 8/21/2015 5:33 PM, Billy Pettit wrote:
 I have a small batch of Data I/O EPROM burners.  Trying to test them out and 
 ran into a nightmare.  They require a pin family and size parameter.  But in 
 none of the documentation is there any mention of what these values are.  
 There are some generic pinouts, which are almost useless because Data I/O 
 changed the definition of several pins.

 Then the manual says to get your part's timing chart and compare them to 409 
 pages of timing charts to find the family type!  Nothing is mentioned 
 anywhere on how to calculate size parameter.

 There should be a chart or document somewhere that gives the parameters by 
 model numbers like 2516, 2764, etc.

 Anyone know of a document like this?

 Anyone have experience with the model 29AB, Model 19, Model 100 gang 
 programmer, etc.

 At this point, without better data, these 11 -12 deveces are heading for the 
 scrap pile.  This is the poorest documentation I've ever seen on a piece of 
 test equipment.

 Billy Pettit




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Re: Just got a big C= Haul

[wulfman]

good catch !

On 7/25/2015 5:07 PM, Tom Moss wrote:
 I'll just leave this here... (thief alert!)

 http://www.applefritter.com/node/4283
 http://forums.macnn.com/59/marketplace/289901/beware-frylock1701-steven-landon-michigan/
 https://groups.google.com/forum/#!topic/vintage-macs/LwIoke_aIDY
 https://groups.google.com/forum/#!topic/vintage-macs/1p2t_7i_qV4

 On 26 July 2015 at 01:01, Steven Landon slandon...@gmail.com wrote:

 Thought id share what I picked up about 2 hours north of me

 Pet 8032 with 8050 Drive and Matching Printer
 Amiga 500 with 590 HDD-  Needs some work
 Brand new in Box C16
 Brand New in Box Plus 4
 Commodore Colt PC
 2 VIC 20s.  Ones an early one with silver label
 Lots of Disks for the A500

 All in all not a bad haul for a 2 hour drive.   The only thing im keeping
 is the Amiga 500, and maybe the colt PC the rest is up for grabs.  If your
 interested in it let me know.  I can deliver to VCFMW if its prepaid.


 Heres pics for you all to look at

 https://www.flickr.com/photos/67970316@N08/sets/72157656357657105

 Steve




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Re: Mysterious S100 SRAM card

[wulfman]

I had 4 of them in my first 8080 computer. I believe they are SSM (Solid
State Music brand)




On 7/24/2015 2:16 AM, d...@661.org wrote:
 On Fri, 24 Jul 2015, d...@661.org wrote:

 Can someone identify this S100 SRAM card?  I can tell that it's a 16K
 SRAM board made up of MM2114 chips.  Virtual beer to the first person
 who guesses where I found it.

 Whoops!  How about if I show you the picture?

 https://www.flickr.com/photos/32548582@N02/19969394361/




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Re: Chromatics on ebay

[wulfman]

You can offer to take him to small claims court for the item. That
option has worked well for me in the past.
Once you let them know the option of a court case is real they are more
than willing to deal with the contract.
IT's quite clear in the ebay auction terms.



On 7/23/2015 3:54 PM, Noel Chiappa wrote:
  From: william degnan

  I told him start with buy it now for $2000 with best offer

 And there's the key to the situation. The seller thought they were going to
 get big dineros for it, and not so much.

 Which is likely a good part of why they aren't being reasonable in the
 post-sale negotiations with Josh.


  because you're asking for the item to be shipped, the seller can refuse
  on that ground

 Err, the listing does say:

   I dont wanna have to mess with shipping, but if you absolutely need it
   shipped we can work something out.

 So I don't think that dog will hunt.

 But, just to close that door, is there anyone in the LA area who can, in
 fact, go pick this thing up, and ship it off to Josh? That would leave the
 seller without a leg.


 But the seller does only have a feedback of 4, so maybe they really are
 clueless about eBay.

 But the bottom line is that the _reality_ is that honouring the contract with
 Josh is _not_ going to cost the seller a lot of money - because in an _open
 auction_, it went for $5.

   Noel



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Re: PDP 11 gear finally moved

[wulfman]

some are good some are bad.

http://www.badcaps.net/


here is all the info you ever need on today's bad caps
not so much on yesteryears bad caps



On 7/17/2015 11:53 AM, Mouse wrote:
 I do find this witch-hunt against capacitors to be curious, given how
 few I've found to have failed.  I suspect a lot of it comes from
 audiophools who think this is the way to fix anything...
 Perhaps.  But not all of it, certainly.  I'm currently four for four
 fixing dead flatscreens by re-capping their power supplies; I imagine
 others have similar experiences.  It's not a huge stretch to imagine
 that other power supplies may have similar issues; even if it turns out
 to not be the case, there is probably at least a little can't hurt
 anything, right? running around.

 /~\ The ASCII   Mouse
 \ / Ribbon Campaign
  X  Against HTML  mo...@rodents-montreal.org
 / \ Email! 7D C8 61 52 5D E7 2D 39  4E F1 31 3E E8 B3 27 4B



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Re: PDP-12 at the RICM (Michael Thompson)

[wulfman]

On 7/13/2015 4:59 PM, Michael Thompson wrote:
 Date: Mon, 13 Jul 2015 01:52:09 -0400
 From: Kip Koon computer...@sc.rr.com
 Subject: RE: PDP-12 at the RICM

 Hi Michael,
 I would be most interested in finding out more about this effort.  Do you
 have ongoing pictures documenting this effort?  I'd love to have a PDP 8,
 11, 12 someday, but I don't have the space for something like that much
 less the cost involved so I'll have to be satisfied with emulators on my PC
 or eventually building one or more of these systems with current technology
 like the SBC6120 if memory serves.  Are there other possible alternatives?
 I used a PDP-8/E in high school and college and have been quite interested
 in the high capability PDPs like the PDP-11 Series for starters.  I didn't
 know there were PDP 12 Series computers.  Are there other PDP series
 computers as well?  Congratulations on your restoration efforts!  I wish I
 could see what all you guys have been and are up to!  Take care my friends.

 Kip Koon
 computer...@sc.rr.com
 http://www.cocopedia.com/wiki/index.php/Kip_Koon

 Kip,

 I don't think that there is an emulator for the PDP-12 so you will need to
 find a real one.
 Details on the PDP-12 are here:
 http://www.ricomputermuseum.org/Home/equipment/dec-pdp-12
 A running blog on the restoration is here:
 http://www.ricomputermuseum.org/Home/equipment/dec-pdp-12/dec-pdp-12-restoration


 Michael Thompson

https://github.com/andysan/greenpea

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Re: Altos ACS 8000-7 (8200) mainboard wanted / Shugart 4008 motor pulley

[wulfman]

no not a software emulator  a hardware emulator you remove the Z80 and
plug in a cable
lets you step through the code test memory and run the board at full speed
hardware emulators are for the debugging of the hardware.

unlike software emulators that run on a host PC that let you run old
software

i have a ZAX Z80 emulator and a Applied microsystems Z80 emulator for
just that purpose

On 7/11/2015 8:32 AM, Jay Jaeger wrote:
 I use emulators as well, and have written some, but I also enjoy working
 with the real hardware.

 The Altos ACS-8000 series are all Z80's .

 JRJ

 On 7/10/2015 10:05 PM, wulfman wrote:
 On 7/10/2015 7:50 PM, Jay Jaeger wrote:
 Long story, but

 I recently acquired an Altos ACS 8000-2 with an 8100-01 mainboard (which
 currently is not functioning).   Acquired it on eBay where it was
 represented as an ACS-8000-7, along with an Altos 8000-7A 29MB hard disk
 (a Shugart 4008).  The hard disk was fine, but the computer wasn't the
 one shown in the photo.  (I arranged for a partial refund.  At least the
 disk was the one in the photo.  ;) ).

 I was wondering if anyone had an 8200 mainboard (the one with the logic
 for the hard disk on it) that they would be willing to sell at an
 affordable price?

 Also, I have a second Shugart 4008 hard disk, but it was configured for
 50Hz - so the motor pulley is the wrong size.  Anyone out there have a
 dead 4008 that they would be willing to have part with its motor pulley
 and belt (and get the 50Hz set in return)?  (For example, I saw a
 posting on youtube with a wobbly platter set that probably is a good
 candidate...  ;) ).

 Any tips on troubleshooting the mainboard on a double density Altos 8000
 computer (mainboard 8100) would also be appreciated.  I have already
 reseated the chips, polished the tarnish off some chips the apparently
 had silver-plated pins, etc., to no avail.  Have dumped the ROM (2708).
  Next plan is to disassemble that, and slap a logic analyzer on J2
 which has all of the bus signals on it.

 Thanks in advance...

 JRJ

 This is why i collect cpu emulators. I have almost every kind made. I do
 however need some jumper headers for a 68000 HMI unit
 thats set for 68008 mode but thats another story.


 what main CPU does this use, 8080 or a Z80 or ???





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Re: Altos ACS 8000-7 (8200) mainboard wanted / Shugart 4008 motor pulley

[wulfman]

heh  thats way more work than a plug in emulator

good luck on it


On 7/11/2015 2:49 PM, Jay Jaeger wrote:
 Oh, yeah I get it - an in circuit emulator.  With my logic analyzer I
 can also watch all the bus transactions (or directly on the CPU if needs
 be) to see what is going on, as well.

 I have an Intel MDS IV with an ICE for (IIRC) an 8051, but have never
 used it for that purpose to date.

 JRJ

 On 7/11/2015 2:42 PM, wulfman wrote:
 no not a software emulator  a hardware emulator you remove the Z80 and
 plug in a cable
 lets you step through the code test memory and run the board at full speed
 hardware emulators are for the debugging of the hardware.

 unlike software emulators that run on a host PC that let you run old
 software

 i have a ZAX Z80 emulator and a Applied microsystems Z80 emulator for
 just that purpose

 On 7/11/2015 8:32 AM, Jay Jaeger wrote:
 I use emulators as well, and have written some, but I also enjoy working
 with the real hardware.

 The Altos ACS-8000 series are all Z80's .

 JRJ

 On 7/10/2015 10:05 PM, wulfman wrote:
 On 7/10/2015 7:50 PM, Jay Jaeger wrote:
 Long story, but

 I recently acquired an Altos ACS 8000-2 with an 8100-01 mainboard (which
 currently is not functioning).   Acquired it on eBay where it was
 represented as an ACS-8000-7, along with an Altos 8000-7A 29MB hard disk
 (a Shugart 4008).  The hard disk was fine, but the computer wasn't the
 one shown in the photo.  (I arranged for a partial refund.  At least the
 disk was the one in the photo.  ;) ).

 I was wondering if anyone had an 8200 mainboard (the one with the logic
 for the hard disk on it) that they would be willing to sell at an
 affordable price?

 Also, I have a second Shugart 4008 hard disk, but it was configured for
 50Hz - so the motor pulley is the wrong size.  Anyone out there have a
 dead 4008 that they would be willing to have part with its motor pulley
 and belt (and get the 50Hz set in return)?  (For example, I saw a
 posting on youtube with a wobbly platter set that probably is a good
 candidate...  ;) ).

 Any tips on troubleshooting the mainboard on a double density Altos 8000
 computer (mainboard 8100) would also be appreciated.  I have already
 reseated the chips, polished the tarnish off some chips the apparently
 had silver-plated pins, etc., to no avail.  Have dumped the ROM (2708).
  Next plan is to disassemble that, and slap a logic analyzer on J2
 which has all of the bus signals on it.

 Thanks in advance...

 JRJ

 This is why i collect cpu emulators. I have almost every kind made. I do
 however need some jumper headers for a 68000 HMI unit
 thats set for 68008 mode but thats another story.


 what main CPU does this use, 8080 or a Z80 or ???






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Re: Altos ACS 8000-7 (8200) mainboard wanted / Shugart 4008 motor pulley

[wulfman]

On 7/10/2015 7:50 PM, Jay Jaeger wrote:
 Long story, but

 I recently acquired an Altos ACS 8000-2 with an 8100-01 mainboard (which
 currently is not functioning).   Acquired it on eBay where it was
 represented as an ACS-8000-7, along with an Altos 8000-7A 29MB hard disk
 (a Shugart 4008).  The hard disk was fine, but the computer wasn't the
 one shown in the photo.  (I arranged for a partial refund.  At least the
 disk was the one in the photo.  ;) ).

 I was wondering if anyone had an 8200 mainboard (the one with the logic
 for the hard disk on it) that they would be willing to sell at an
 affordable price?

 Also, I have a second Shugart 4008 hard disk, but it was configured for
 50Hz - so the motor pulley is the wrong size.  Anyone out there have a
 dead 4008 that they would be willing to have part with its motor pulley
 and belt (and get the 50Hz set in return)?  (For example, I saw a
 posting on youtube with a wobbly platter set that probably is a good
 candidate...  ;) ).

 Any tips on troubleshooting the mainboard on a double density Altos 8000
 computer (mainboard 8100) would also be appreciated.  I have already
 reseated the chips, polished the tarnish off some chips the apparently
 had silver-plated pins, etc., to no avail.  Have dumped the ROM (2708).
  Next plan is to disassemble that, and slap a logic analyzer on J2
 which has all of the bus signals on it.

 Thanks in advance...

 JRJ

This is why i collect cpu emulators. I have almost every kind made. I do
however need some jumper headers for a 68000 HMI unit
thats set for 68008 mode but thats another story.


what main CPU does this use, 8080 or a Z80 or ???



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Re: email gripe

[wulfman]

yes html email gets deleted for the most part

On 7/7/2015 7:13 PM, Jay West wrote:
 Chris wrote...

 Boy, count another vote against HTML-izing this list if that's what's being
 considered.
 -
 No, forcing the list to send email as HTML has never been done, nor is it
 being considered.

 I do believe there is an option where each member can set their subscription
 to be plain text, which I believe is set by default.

 J





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Re: 1990 Era computer room

[wulfman]

ahh the memorys  i worked at dataproducts from late 1978 to late 1980

they were awesome printers the B series used the 2900 series bit slice
building blocks

they were speed daemons for their time

its too bad that manufacturing in the USA has dropped because of cheap
Chinese

we may still have great companys like that making things here in the USA


On 6/24/2015 9:33 AM, J. David Bryan wrote:
 On Tuesday, June 23, 2015 at 22:14, jwsmobile wrote:

 Also I don't recall the Data Products ever scaling as fast by
 restricting columns.  At least our 2230, 2260 and 2290 UC only and 96
 character set printers didn't.  Got the same speed regardless of the
 columns on those Data Products printers.
 The HP 2767A service manual (02767-90002, available from Bitsavers) is a 
 reprint of the Data Products 2310 service manual.  Page 1-17 says:

   The printer receives data from the user system and stores up to 20
characters in the buffer memory.  [...]  A full line of data is
printed in four zones, each zone having 20 consecutive print
positions.  In this manner, the printer's 20 hammer drivers can be
time-shared among the 80 print positions. 

 ...and the spec on page 1-5 says the print rate for the 64-character drum 
 is 356 lines per minute for 80 columns, 460 lpm for 60 columns, 650 lpm for 
 40 columns, and 1110 lpm for 20 columns.

 I tested a 2767A as a customer of the HP Rockville, MD office in the early 
 1970s.  As I recall, the character set wasn't staggered on the drum, and 
 the hammer force was constant, regardless of glyph area.  The result of 
 printing a line of hyphens -- or worse, a line of periods -- was a very 
 loud bang and a neatly perfed page.

   -- Dave




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Re: OT: learner kits

[wulfman]

4000 series are really much more static sensitive than bullet proof ttl
there are pros and cons to everything 4000 series can use a higher VCC
where ttl is 5V
if you plan using 4000 series get him a wrist strap and a bench pad to
attach it to
grounding it all to earth.


On 6/19/2015 7:19 PM, Tapley, Mark wrote:
 All,
   My 14-year-old son has mentioned that he’d like a breadboard and some 
 parts to fool with, and the pointer below really helps. I have an old 
 Archerkit VOM already, and I’m thinking about turning him loose in August 
 with the discrete components part kit, the VOM, a box of logic parts, and a 
 copy of Horowitz and Hill. 
   Is there a reason to prefer 7400 series over CD4000 series logic? 

 http://www.jameco.com/Jameco/catalogs/c151/P30.pdf

   makes the CD4000 series look cheaper. 

   I also have a pair of old Tek 922 O-scopes, one of which has all of its 
 knobs and switches intact and produces a trace. I’ll guess that they both 
 need rebuilding; I have the instruction manuals, though, so maybe that is 
 lesson 1? Is the TekScopes group the best place to find probes for one or 
 both?

   I also have one of the 200-in-1 spring-termial projects; he played with 
 that a bit, but there wasn’t enough logic there to do much computing :-) so 
 he lost some interest.

   He has a Raspberry Pi, which he pretty much contempts in favor of his 
 laptop, which will play the modern version of MineCraft :-P, but presumably 
 hooking those together might be fun. 

   Should I add anything else to his pile? Is there a series of logic 
 that’ll make things easier if he does end up hooking in the RPi?
   
   Thanks for any help! My own knowledge is pretty spotty in this field, 
 so please feel free to start near ground-zero with helpful advice.
   
 - Mark

 On Jun 16, 2015, at 10:50 AM, geneb ge...@deltasoft.com wrote:

 On Tue, 16 Jun 2015, Mark J. Blair wrote:

 On Jun 16, 2015, at 08:19, geneb ge...@deltasoft.com wrote:

 On Tue, 16 Jun 2015, Noel Chiappa wrote:

 I wish there was some _easy_ way to lay in a stock of the most common TTL
 IC's - e.g. some kind of kit one could buy - but alas, I don't know of 
 any.
 (Hence my dream of finding and acquiring someone else's collection! :-)
 Suggestions for the source of such a good diversified 'starter kit' 
 welcome...

 How about this:
 http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_84961_-1
 Very nice! I might just order one of those.
 They also offer 4000 series, transistor, resistor, and capacitor collections.

 g.

 -- 
 Proud owner of F-15C 80-0007
 http://www.f15sim.com - The only one of its kind.
 http://www.diy-cockpits.org/coll - Go Collimated or Go Home.
 Some people collect things for a hobby.  Geeks collect hobbies.

 ScarletDME - The red hot Data Management Environment
 A Multi-Value database for the masses, not the classes.
 http://scarlet.deltasoft.com - Get it _today_!



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Re: Fairchild

[wulfman]

Maybe Univac?



On 6/15/2015 9:58 PM, Zane Healy wrote:
 Does anyone happen to know what sort of computers Fairchild would have been 
 using in the late 60's for design work?

 Zane






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Re: ultra sonic washing

[wulfman]

nothing like running them through the dishwasher with hot water and good
soap.
I repair old arcade boards and i have found nothing better.
after they are hot from the wash you blow them off with compressed air
till try
and leave them in a rack in case you missed any water.
as long as they dry fast there will be no chance of damage.
on the off chance there is a component that must not get wet
you can remove it and re solder it once clean
this method removes all manor of issues from tobbaco smoke residue to
mouse poops and pees.
once clean if there is any corroded areas they can be repaired.



On 6/13/2015 8:16 PM, Adrian Stoness wrote:
 has anyone experimented with this on parts? when dealing with dirty
 equipment?
 if so what works best for liquid sulutions?

 ive got a shelf of 15in bass drivers and some amps thinking of building
 something to clean some audio boards i aquired on the cheap though maybe
 some folks here would have some ideas?



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Re: OT: Looking for the Tek 465 of Logic Analysers

[wulfman]

i own   a 16500B software is still on HPs site
i got it off ebay for 200$ fully loaded with a FULL set of probes
i am very happy with it

go for the hp


On 5/29/2015 1:37 PM, Marc Verdiell wrote:
 I'd suggest to go for the king of the hill at the time, and get an HP 16xx 
 (163x, 165x, 166x, 167x) for all-in-ones or the 16500 if you like to 
 modularize yourself, although tis latter one is much harder to put together 
 since you have to get the frame, the plug ins, the software, etc... 
 On the 16yx, the higher the y number, the better the machine (i.e faster, 
 better screens, more memory). They are widely available, starting at below 
 $100 for the earlier machines, and up to $300-$400 for the later ones. I'd 
 recommend to have at least one that has a hard disk, so you don't have to 
 find or make an old LIF floppy to boot from.
 As always the rub is the pods/probes. I had to complete my set separately, 
 but they are also widely available.
 This is a relatively small amount to pay for what these machines actually 
 are. The later ones have the inverse assembler for the 68000.
 I got the luxury one, a 1670G with the pattern generator (which I haven't 
 found an excuse to use yet). Here it is at work:
 http://youtu.be/X_6limxLZ_k


 Sent from my iPad

 On May 29, 2015, at 12:00 PM, cctalk-requ...@classiccmp.org wrote:

 Message: 20
 Date: Thu, 28 May 2015 22:53:07 -0400
 From: Ken Seefried seefr...@gmail.com
 To: cctalk@classiccmp.org
 Subject: OT: Looking for the Tek 465 of Logic Analysers
 Message-ID:
caorcwjx8hkjddgclyvzsbrotk8qmgbsf2kvnzbmsjpqrzzf...@mail.gmail.com
 Content-Type: text/plain; charset=UTF-8

 Maybe only semi-OT.  I'm working on a couple of classiccmp-ish projects
 (6303, 6309 and 68030) and I find the trusty old Tek 465 o-scope is no
 longer compensating for my lack of design skill (or I'm getting better at
 hiding bugs in my designs, depending how you look at it).  I'm looking for
 a recommendation for a logic analyzer.  Considering my very modest design
 constraints, I'm thinking:

 - Suitable for 50MHz designs (really more like 16MHz, but you never know)
 - 32 channels would be nice, ~128 probably perfect, less...you know...do
 what you gotta do...
 - No weird technologies in the design (all TTL/CMOS logic)
 - I'm willing to spend a few $$ to get decent kit, but need to spend closer
 to 465 money than TLA7012 money
 - Decent analytics, hopefully more than here's your traces...good luck
 - Ease of finding complete kit; nothing worse than dropping a dime on what
 looks like a good deal only to find you're missing the unobtanium cable, or
 the software disk that the vendor will be more than happy to provide you
 only under a cripplingly expensive support contract.


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