Old Muntz TV for sale Locally to me, Should I pick it up?

[Kevin Kuehn]

Originally Posted by vortalexfan

Would possibly using the wrong tube in the tuner cause some issues?

I ask because I have been subbing a 6AK5 in place of a 6AG5 tube in the tuner and I wonder if using a substitute tube rather than the original tube that it calls for in the circuit could be causing my tuner not to work right...

I know the tuners in these early TVs were quite finicky about how they worked.

Sams schematic actually shows a 6AK5 for the RF amp. Double check the voltages again from the top side of the tuner sockets and see if they are still as low as before. Leave the tuner tubes out just like you did before.