I’m Back! Pilot TV37

[Phil Nelson]

Originally Posted by Chris K

I don't want to power the chassis up and sacrifice tubes that are burning hot. Any suggestions as to where I can begin a basic troubleshooting so I can find where I screwed up?

The Sams service manual has a complete resistance chart for the TV-37:

http://www.earlytelevision.org/pdf/p...sams_62-16.pdf

Checking the resistance at every pin of every tube is tedious, but it is done with the TV powered off and it doesn't require great diagnostic skill. If you find a big discrepancy between the ideal resistance and the measured resistance, that might point you in the right direction.

For each pin, you are basically checking whether its resistance value is more than 20% above or below the ideal value given in the chart. Look carefully at the little notes at the bottom of the chart.

Now, it's possible that you'll take all those measurements and find nothing amiss -- but that, too, is useful information. You just confirmed a bunch of things that are correct and can be crossed off the trouble list.

Phil Nelson
Phil's Old Radios
https://antiqueradio.org/index.html