Predicta 17" HV question

[DaveWM]

what does W13 look like?, and what does Pin 6 of the 6CG7 show for voltage and wave form?

[old_coot88]

Phil,
I would check to verify that the 6DQ6 cathode (pin 8) is making contact to ground, by measuring to the tube pin itself. The readings you're getting suggest the cathode might be 'floating'.

[Phil Nelson]

Originally Posted by DaveWM

what does Pin 6 of the 6CG7 show for voltage and wave form?

Pin 6 measures 188V (schematic says 195V). Here's the waveform:



Phil Nelson