Help resurrect my Xerox Alto
chrise at pobox.com
Sun Sep 19 20:14:07 CDT 2010
<comes out from bushes> ah, that was me.
Was a great time and really a blast to dig into the Alto. We definitely
improvised, not having a stock of uA709 opamp on hand... we just bypassed
that regulator circuit and stuck a 7805 there instead, which was pilfered
from Vince Briel's spare parts stock for his Altair8800micro kits.
Too much fun.
Good luck Nick and keep us posted.
On Sunday (09/19/2010 at 09:20AM -0500), Nick Allen wrote:
> Some GOOD news, at the Midwest VCF, Chris (from St Paul, don't remember
> last name) and Eric Kudzin were huge helps and took Jim S's
> recommendation and repaired the 5V Op Amp fixing the 5V issue and now
> the Disk Drive SPINS! We still need to repair the CRT and diagnose the
> rest of the system, but we are making progress!!
> Thank you Jim (for the amazing feat of properly diagnosing remotely via
> schematics) and thank you Chris and Eric for your endless hours of help
> at the VCF!'
> I will keep everyone posted as we progress, Eric and I will be working
> over the next several months to restore the Alto!
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