01-19-2013, 03:57 PM
Schematic and information here:
http://www.nostalgiaair.org/PagesByModel...013793.pdf
Agree, repeat the alignment. You can get an inexpensive digital frequency counter (probably less than $25 delivered) as just mentioned. If you have an older signal generator leave it on for at least half an hour before verifying and using it on the set. They all drift a bit before becoming stable. Anyway follow manufacturer's instructions for alignment.
Could be a carbon resistor going way up in value, no foolproof way to measure them, so for the few pennies each, I now replace them whilst doing recap job. I'd like my restorations to outlive me.
Well, do that, and then let us know what you have found.
http://www.nostalgiaair.org/PagesByModel...013793.pdf
Agree, repeat the alignment. You can get an inexpensive digital frequency counter (probably less than $25 delivered) as just mentioned. If you have an older signal generator leave it on for at least half an hour before verifying and using it on the set. They all drift a bit before becoming stable. Anyway follow manufacturer's instructions for alignment.
Could be a carbon resistor going way up in value, no foolproof way to measure them, so for the few pennies each, I now replace them whilst doing recap job. I'd like my restorations to outlive me.
Well, do that, and then let us know what you have found.
![[-]](https://philcoradio.com/phorum/images/bootbb/collapse.png "[-]")
