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

From: Bill Pechter <pechter_at_pechter.dyndns.org>
Date: Sat Apr 10 17:36:51 1999

> >>I think I'm going to have to plead ignorant here. What are "half-inch tape
> >>seals"?
> >
> >You know those 2400-foot, 600-foot, and other lengths of half-inch tape
> >that are used in 7-track and 9-track drives? The reels are commonly
>
> OK, now it makes sense, I was thinking something like masking, or duct
> tape, not computer tape. I'm just a little to familiar with what you're
> talking about, I'd just never thought of using them for anything other than
> their intended purpose.

Rotfl.


Damn. I missed this use also. And I used to fix 9track drives
for a living. I didn't use these or the ez-open IBM rings which
were great on the DEC TU77/78's for much.

Write ring toss while waiting to PM a machine was common though.

(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...)

Bill

---
  bpechter_at_shell.monmouth.com|pechter_at_pechter.dyndns.org
      Three things never anger: First, the one who runs your DEC,
      The one who does Field Service and the one who signs your check.
Received on Sat Apr 10 1999 - 17:36:51 BST

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