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Old 03-19-2015, 11:49 AM
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DavGoodlin DavGoodlin is offline
Motorola Minion
 
Join Date: Aug 2011
Location: near Strasburg PA
Posts: 3,504
The HV control does nothing to cathode current, low grid drive, or the -55 volts.
The .01 disc has not been changed but all surrounding paper caps were. Will try that later.

I did try a new H osc tube and pin 2 is exactly -44 v with either one.

I suspect the VDR is clamping too much, since I get almost no waveform there, D14 show 1300v p-p come from the fly via a 560 pf. Need to double check if the fly is installed correctly

I was afraid to pull the VDR out of the circuit totally and get runaway HV, so I will try subbing the VDR with a 5meg pot and see.
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