[Gasman]

I am finishing up the restoration of a Philco 42-360.  I have replaced all of the paper caps and electrolytic caps, out of spec resistors and a couple of bad tubes. 

I have aligned it and is working nicely... well most of the time.   The oscillator tube is an XXL loctal tube and I have to wiggle it just so to get it to oscillate.    I have cleaned and deoxed the contacts and socket and tried 3 different tubes.  The result is the same.  Once I wiggle the tube or remove and reinsert it it works fine until I turn off the radio off and let it cool and turn it back on. 

That is one problem --- the other is with the volume control part 39 on the schematic.  It is a 0.5 meg ohm pot.  The volume increases as expected until it is about 3/4 clockwise.  At that point the volume drops off.  I have cleaned the the pot with deoxit.  I am wondering if it is the pot or perhaps something wrong with the AVC circuit.

I tried replacing the pot with a 0.8 megohm pot that I had on hand.  It did not work so well -- perhaps the taper was not correct.

Thanks in advance for any suggestions.

John w.