A young guy new to tube amps brings me a new to him Egnator Rebel 20 with both fuses blown,a dead 6V6, and a dead short. With no tubes in it, my light bulb limiter glows bright. I start by disconnecting the HV secondary at QC 104 and 105. Light bulb goes out, preamp tubes light up, and the front LED comes on. I have almost 600vav on the red secondary wires, so at least it isn't the PT. Right away I find D101 tests good in circuit, but D102 measures 35ohms in circuit both ways. OK, we can assume D102 is shorted.
My question before I take this compact and tightly wired little head apart, and it won't be easy, is can someone vouch for and explain why a shorted diode in this spot would cause a dead short? And I know I should check the filter caps while I am in there, but is there anything else someone might think of to do, because I don't want to do this more than once if I can help it?
https://el34world.com/charts/Schemat...r_rebel_20.pdf
My question before I take this compact and tightly wired little head apart, and it won't be easy, is can someone vouch for and explain why a shorted diode in this spot would cause a dead short? And I know I should check the filter caps while I am in there, but is there anything else someone might think of to do, because I don't want to do this more than once if I can help it?
https://el34world.com/charts/Schemat...r_rebel_20.pdf
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