On Apr 16, 2014, at 1:14 PM, Gary Oliver <go at aerodesic.com> wrote:
(Was sent from wrong address.. Resending.)
On 04/15/2014 04:44 PM, Paul Koning wrote:
On Apr 15, 2014, at 5:49 PM, Gary Oliver <go
at aerodesic.com> wrote:
On 04/15/2014 02:16 PM, Paul Koning wrote:
> On Apr 15, 2014, at 4:50 PM, Gary Oliver <go at aerodesic.com> wrote:
>
>> I have the 'guts' to the earlier Plato terminal (the one with the
>> 512x512 plasma.) By 'guts', I mean the keyboard and display - no box or
>> electronics.
Do you have the plasma panel power supply? I hope so,
because that is a pile of esoteric magic that?s absolutely critical. The functioning of
the plasma panel depends critically on the waveform from the power supply.
Alas, no. I do, however, have the power supply manual for the unit and
it describes if gory detail the sequencing, ramps and limits for each of
the voltages. I don't have it in front of me, but I recall a severe
warning about when and how to bring up the 150 (or was it -150) volt
supply with respect to the logic and other control voltages.
Ok, so at least you can build a new design to match the specs.
Unfortunately, the power suppy et al were not part of the stuff I was
able to obtain. Fortunately, the manufacturer of the display (Corning
if I recall) graciously sent me, without charge, the four manuals for
the system components. This was WAY before my access to the intertubes,
so this was accomplished by dialing the old phone until I found a
sympathetic ear...
I suppose I should send the manuals to bitsavers.
Yes, please do. I just sent the Magnavox and PPT manuals to bitsavers, but those treat
the plasma panel and its power supply as a black box, so the manual for that piece would
be an important addition.
paul