[rescue] 3B2: power supply

Jerry Kemp sun.mail.list47 at oryx.us
Tue Dec 12 12:50:30 CST 2017

I wish I had an extra P/S for you, unfortunately, I do not.

FWIW, an email directly to Seth, if you haven't already done so, regarding 
schematics is probably my best suggestion.

Since completing his 3b2 emulator project, is seems that Seth has been a wealth 
of information and documentation as of lately.  Either thru his own works, or 
from others feeding docs his way.

Another possible source, that is new, at least to me, is the "living computers" 
people.  Similar to what SDF used to provide, they have an online 3b2 where you 
can get guest accounts, poke around.  Possible that they might have those 
resources also.

Good luck on your repair.  I know an emulator is a long way from real HW, but 
just being able to get back on AT&T Unix has been very therapeutic for me.


On 12/12/17 12:41 PM, Cory Smelosky wrote:
> Hi all,
> Does anyone have a 3B2 power supply spare, and/or schematics for them?
> 3B2/400 is such...mine is conveniently missing +12V. :(
> Alternatively, the pinout for the power connector would help.

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