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Well I'm having bad luck with coils on this set. As I've been recapping this set, working from one side of the chassis to the other, I've been checking resistors with an ohmmeter. I came to a peaking coil (L23 in the Sams) which is a coil wrapped around a 39Kohm resistor and it reads 39 kohms! With the coil in parallel it should read 10 ohms. This is a peaking coil from the video detector V8 and is coupled through a 0.05 microfarad capacitor to the grid of the video amp and looks like it also forms part of the AGC. Looking at it through a magnifying glass, I can see many shiny broken ends of copper wire poking through where the wax has been scraped away - this is royally busted. It looks like whoever worked on this set before me recklessly smashed this coil into the sharp edge of the tube tie point of pin 1 on V8. I have no idea as to the inductance of this coil or how to go about replacing this. Does anyone have any info?
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02-15-2020, 04:08 PM
Hybrid Mode
