BA23 BA11-M power up after long time

Douglas Taylor dj.taylor4 at
Thu Sep 29 17:33:23 CDT 2016

I have a couple of BA23 based boxes and one BA11-M box that I haven't 
powered on in a couple of years and would like to resurrect them into 
working PDP11's.

How should I go about powering them up without doing any damage?

What is an appropriate load for the power supply?

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