The meter for the margin supply was reading about 15% high. I wanted to open it and replace the scale resistor but it's closed by the silver metal band crimped around the edge of the meter. Trying to remove it would make a horrible mess. Instead I added an external resistor to fix the scaling shown in the next picture.
Feel free to contact me, David Gesswein email@example.com
with any questions, comments on the web site, or if you have related equipment,
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interested in anything PDP-8
related, computers, peripherals used with them, DEC or third party, or