PDP-8/E PSU Debugging (was Q-bus pinout)

From: Jerome Fine <jhfine_at_idirect.com>
Date: Sat Apr 10 21:01:25 1999

>Bill Pechter wrote:

> (One day, ask me about the DEC story of the customer who epoxied in the write
> ring area on the 9 track tapes to make sure his operators couldn't put
> them in to write enable and over-write a backup tape...)

Jerome Fine replies:

OK! I bite. This is "One day". But two questions:

Was the backup already made? Or did the customer try and "anticipate"
the problem by putting in the epoxy before the backup was done?

OR, did the epoxy not harden enough so that the sensor (if I remember,
they were just an extending rod which pushed their way into the grove
if the ring was out) caught on the epoxy and the sensor was ripped out
in the process which caused significant damage to the tape drive?

Otherwise, the customer just replaced the ring with epoxy, which
while rather stupid, maybe the customer thought the actual ring
did something.

But I am itching to hear!!!!!!!!!!
Received on Sat Apr 10 1999 - 21:01:25 BST