Quote:
Originally Posted by Kevin Kuehn
Have you've checked the brightness control, and the 1M resistor coming off it's center tap? The brightness pot is fed by the same B+ on pin 6 of the 6AS5. The voltage on pin 2 of the CRT should vary from 72-180v(according to Sams) with rotation of that control. Make sure you don't accidentally measure the HV with your VOM.
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Resistor is measuring 1.13 M, so we're close anyway. Brightness control is within spec. Now, here's the odd part.
I noticed on the brightness control there is a wire that is attached to the terminal of the brightness control opposite chassis ground, that goes right to one half of C1.
My parts chassis does not have this wire.
The plastic on the end of the wire where it attached to the brightness control appears to have melted, and the wire was disconnected. Granted, it could have melted from the previous owner's soldering iron, but I get lost in the schematic right at that point trying to figure out if it should even BE there, as the junction spiders out everywhere.
