[Coco] [Color Computer] Re: mystery chip on COCO2 XC80652P

[Neil Morrison]

My first boss when I took up tube repair had one of those German
3-in-1 tubes with resistors and capacitors inside. Unfortunately the
filament was gone! I always coveted that, though.

Neil

----- Original Message ----- 
From: <jdaggett at gate.net>


> Mike
...
> Now open plate, or thermionic valves. I brought a nice 500 watt
> plate dissipation tube into work one day and some of the young
> engineers were amazed. Yep tube theory is not taught anymore in
> engineering at colleges. Most engineers coming out of college
> would hardly know what ot do with a vaccum tube. Some duds
> make great lamps though. Take the 3-500Z tube requires 45 watts
> for jsut the filaments.
...



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