[rescue] 3B2: power supply

[Cory Smelosky]

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.

[Jerry Kemp]

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.

Jerry

Post by Cory Smelosky
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.

_______________________________________________
rescue list - http://www.sunhelp.org/mailman/listinfo/rescue

[Cory Smelosky]

Post by Jerry Kemp
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.

Poked him directly for PSU pinouts...also washed the faulty one to
restore consistency across the voltage rails (all dead now probably as
opposed to just one!) so it may be repairable.

Post by Jerry Kemp
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.

I have some 3B2 boards to send his way...I apparently have about 3 of
every board...friends with 3B2 stuff they want gone is useful ;)

Post by Jerry Kemp
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.

Ooh. They have a 3B2 now?

Post by Jerry Kemp
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.

My 3B1 at least works! Well, aside from not doing anything.

Post by Jerry Kemp
Jerry

Post by Cory Smelosky
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.

_______________________________________________
rescue list - http://www.sunhelp.org/mailman/listinfo/rescue

[Jerry Kemp]

Post by Cory Smelosky

Post by Jerry Kemp
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.

Ooh. They have a 3B2 now?

They do. I personally have a 3b2 account there, and, IMHO, software wise their
system is very well populated.

Post by Cory Smelosky

Post by Jerry Kemp
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.

My 3B1 at least works! Well, aside from not doing anything.

FWIW, Seth's SIMH 3b2 emulator works very well. Network is not there yet, but
pretty much everything else is.

3b1. Unfortunately, I never had the opportunity to use, or even see one of
those in-the-flesh. Hopefully something that can be remedied in the future.

Again, best of luck with your P/S repair.

Post by Cory Smelosky

Post by Jerry Kemp
Jerry

_______________________________________________
rescue list - http://www.sunhelp.org/mailman/listinfo/rescue

[Barry Keeney]

I have parts of a 3b2, I'm missing the case/backplane
for a 3b2-1000 to complete mine. Anyone got these?

As for the powersupply I'm not sure mine would match yours
or not.

Post by Cory Smelosky

Post by Jerry Kemp
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.

Poked him directly for PSU pinouts...also washed the faulty one to
restore consistency across the voltage rails (all dead now probably as
opposed to just one!) so it may be repairable.

Post by Jerry Kemp
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.

I have some 3B2 boards to send his way...I apparently have about 3 of
every board...friends with 3B2 stuff they want gone is useful ;)

Post by Jerry Kemp
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.

Ooh. They have a 3B2 now?

Post by Jerry Kemp
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.

My 3B1 at least works! Well, aside from not doing anything.

Post by Jerry Kemp
Jerry

Post by Cory Smelosky
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.

_______________________________________________
rescue list - http://www.sunhelp.org/mailman/listinfo/rescue

--
Cory Smelosky
_______________________________________________
rescue list - http://www.sunhelp.org/mailman/listinfo/rescue

Barry Keeney
Chaos Consulting
email ***@chaoscon.com

"Atheist: A person who doesn't need imaginary friends"

"Rap is Square Dancing gone terribly, terribly Wrong...."

"MicroSoft Windows - Running our defences until they all bluescreen during the Cylon attack..."
_______________________________________________
rescue list - http://www.sunhelp.org/mailman/listinfo/rescue

[a***@alanlee.org]

Not relevant for a 400, however I did build a replacement board for the
1000 power supply to adapt an modern ATX replacement for use. I have
spare boards and parts. If anyone has a dead 1000 (600 and 700 should
work too) PSU and needs reviving, let me know.

-Alan

Post by Barry Keeney
I have parts of a 3b2, I'm missing the case/backplane
for a 3b2-1000 to complete mine. Anyone got these?
As for the powersupply I'm not sure mine would match yours
or not.

_______________________________________________
rescue list - http://www.sunhelp.org/mailman/listinfo/rescue