Quote:
Originally Posted by Tubejunke
Now, to the G1 capacitor and biasing. I have not yet had time to check any voltages and it sounds like the right thing to do is simply replace such a critical cap. Looking at the schematic I see a .01mfd (C66) to pin 5 of the H.O. tube 6HF5 via a 100 ohm resistor. There is also a .001mfd @ 10% (C65) in parallel to that going through a 33K ohm resistor to ground. Admission of guilt on limited knowledge leads me to ask which of these is the right one. My bet is on the .01mfd going straight to G1, but I want to make sure along with
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It is difficult to tell from the above description how the 2 caps are actually wired... if the .001/33k resistor combination connects to ground, it would seem to *not* be connected in parallel with the .01/100 ohm combo. The coupling cap would be located between the plate circuit of the horizontal oscillator and the grid of the horizontal output. If the other cap is also connected somewhere in the grid circuit of the horizontal output, I would replace it as well.
jr