I have a PDP-11/34 programmer's console, what should I do with it?

From: Andreas Freiherr <Andreas.Freiherr_at_Vishay.com>
Date: Wed Mar 6 19:13:44 2002

Ethan Dicks wrote:
> ... Guess I'll go back to making the BA11 work with the
> VAX 8300 it's next to (replaced the damaged IC in the T0010 board... now
> on to locate the cause of the short that caused the damage in the first
> place).

Good luck! Meanwhile, I'll try to get that blown 74123 out of my RX211
(output at pin 13 shows pulse, but inverting output at pin 4 shows no
move, and of course only this one is used) without damaging the board.

I suspect replacing the 74123 with a 74LS123 will change the timing? -
DEC apparently meant it to be quite precise: the capacitors are +/- 5%
types, the resistors even 1%.

Andreas Freiherr
Vishay Semiconductor GmbH, Heilbronn, Germany
Received on Wed Mar 06 2002 - 19:13:44 GMT

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