4 Dec
1999
4 Dec
'99
4:12 p.m.
At 12:42 AM 12/5/99 +0000, Tony wrote:
Reminds me of what can happen when the CRT in an HP9100
develops an
internal short. It blows transistors all over one of the deflection
boards, and then applies about 220V to the outputs from the processor
chassis. This generally wipes out a number of diodes on the gating board,
and if you're unlucky kills some transistors on a flip-flop board, some
transistors on the ROM address decoder, etc.
Hmmm. That sounds like BAD news! Is there any way to prevent a tube
short from frying everything around it?
Joe