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RCA Model 12X2 Vacuum Tube Radio Video #5 - A Fantastic Finish

Everything comes together for a fantastic finish in every way. From junker to jewel in one day!

RCA Victor RC--1064 FIve Tube Radio Video #2 - Tube Testing fooled by 35...

I've decided to test all five tubes in order to finding the offending one with the intermittent heater. But the tubes prove to be too clever and the troublem.

RCA Model 12X2 Vacuum Tube Radio Video #3 - Replace Filter Capacitors

I decide to change out the two large power supply capacitors without trying the radio with them in it.

Vacuum Tube PA Amplifier Video #10 - Mystery Bias

I continue to troubleshoot the positive voltage I'm seeing on the grids of the output tubes.

Vacuum Tube PA Amplifier Video #22 - Powering Up the Tubes

Vacuum Tube PA Amplifier Video - Powering Up the Tubes

Vacuum Tube PA Amplifier Video #35 - I See the Light!

I'm at my wits end on finding the hum so I decide to take a different approach by fooling the amp into thinking I've given up. I test the rectifier tube on a.

Vacuum Tube PA Amplifier Video #25 - Final Cathode Resistors

With the new output tubes in place, I adjust the value of the cathode resistors to set the plate current in a safe range.

Vacuum Tube PA Amplifier Video #16 - Cathode Resistors

Vacuum Tube PA Amplifier Video #16 - Cathode Resistors

European Vacuum Tube Radio Video #3 - Install New Filter Capacitors

European Vacuum Tube Radio Video - Install New Filter Capacitors

Grundig 2540 AM/FM/SW Tube Radio Repair Video #9 - FM Section Fixed

I finally begin testing the FM tuner tube circuit voltages and soon find the source of trouble but it's not what I expected.

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