08-20-2008, 02:45 PM
I too would suspect a s l o w tube. Most checker don't do a great testing like the use and load the reciever presents.
I know this is a line operated reciever, but if you touch the center lug of the volume control with the test lead of a volt meter, with the negative lead of the meter not touching anything, you should hear a hum. If it's loud and clean sounding you have an IF / RF concern. (You just eliminated half the circuits one way or the other. Do it safely and don,t touch anything but the insulated test probe with your skin.
I know this is a line operated reciever, but if you touch the center lug of the volume control with the test lead of a volt meter, with the negative lead of the meter not touching anything, you should hear a hum. If it's loud and clean sounding you have an IF / RF concern. (You just eliminated half the circuits one way or the other. Do it safely and don,t touch anything but the insulated test probe with your skin.
Dave Casazza
Keep em glowin and goin...
