Metropoulos Forum

If I'm going to use a 784-139 OT with EL34 for a 68/69 JMP 1987 build is it 220k in the bias circuit?
Does anything else differ from the 100w bias circuit?

Also the droppers, is it 10k - 8.2k or is it 8.2k - 8.2k?

Thanks in advance.

Schematic is your best friend. But yes 220k and 8k2/8k2 10k/10k sound right. Bias feed resistor really is only based on what the power transformer is putting out.

Ok, thanks. Looks like i better do some more reasearch.