Zenith color console 14B9C50

[pac.attack76]

Originally Posted by JohnCT

Yes on both.

When troubleshooting red plating, it's best to avoid running the circuit until the problem is solved, but if you need to run the circuit to make voltage and waveform measurements, then running without the cathode fuse is one way to prevent the plate from dissipating too many watts and weakening it. Removing the plate cap is another, but sometimes the lead drifts back to the tube and arcs.

Pin 5 is the first grid on most typical Zenith outputs like the 6LF6, but if you have a different output (not familiar with your model number), then you can look up the datasheet for the tube on line and identify the first grid.

John

My horizontal out is 6LB6.