🚀 go-pugleaf

terry@spcvxb.spc.edu (Terry Kennedy, Operations Mgr) writes:

>   If you're getting 4V there, it isn't dust 8-(.
> 
>   Seriously, if you have a BA23 master box (with front panel halt and restart
> buttons), you should have the power harness checked. The old harness can catc
> on fire. The way to tell if you have the proper harness is to open the BA23
> up and look in the drive bays. The good harness is DEC part number 17-01311-0
> and uses white connectors and various colored wires. If you have yellow con-
> nectors or a webbed cable (rather than individual wires) you have a potential
> safety hazard.

Drat.

I just pulled my MicroPDP-11 (11/73) to bits, and located the power
harness (under a *lot* of dust).  It's part number 70-20450-01, with
yellow connectors, but separate coloured wires.

What was the nature of the overheating problem?  The part I have in my
hand looks OK, no sign of any heating.	I flexed the conectors to check
if they had stiffened or become brittle from heat, and they're fine.

I can't remember what type of cable the MicroVAX I that I saw cook a
power harness had.  Can you (or anyone else) remember the details before
I go rummaging through the "museum" looking for the offending part or
hassling DEC?


Don Stokes, ZL2TNM  /  /                            Home: don@zl2tnm.gp.govt.nz
Systems Programmer /GP/ Government Printing Office  Work:        don@gp.govt.nz
__________________/  /__Wellington, New Zealand_____or:_PSI%(5301)47000028::DON