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Here's the voltage readings I took back in 2009
Meter negative connected to cathode of CRT.
Anode 3
Maximum intensity +2.94 KV
Minimum intensity +2.89 KV
Anode 2
Maximum intensity +1.542 KV
Minimum intensity +1.504 KV
Intensity control adjusted to where image just appears on CRT
Anode 2 voltage + 1.597 KV
Anode 1
Intensity minimum
Focus control fully CCW +500 V
Focus control fully CW +253 V
Intensity maximum
Focus control fully CCW +592 V
Focus control fully CW +356 V
The 5ADP1 CRT was working in the scope when I restored it and there's no telling how many decades the CRT has been in that scope.
Main reason I don't understand this is because the scope is fine as the 5CP1A CRT focuses properly, but the few 5ADP* series CRTS don't. Same exact thing happens in the unrestored scope.
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Main system
Scott LK-72A amp & LT-110 tuner
Garrard Zero 100C turntable
AKAI GX 255 RTR
iPod & computer
DIY speakers (upgrading them soon)
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