04-09-2012, 09:40 AM
(04-08-2012, 09:43 PM)7estatdef Wrote:(04-08-2012, 03:50 PM)sjhs1962 Wrote: I can't get a AF signal through the radio...even from the audio output stage. The output tube is a 6 K 6 and maybe is bad...no tester. I have recapped the bakelite in this stage but I have two more bakelites to do. E-caps done and resistors look good. Coils have be checked and 2 meg resistor put on the IF coil. Any thoughts?
The sensitivity control is crumbling...I think it is a dielectric cover on the adjustment screw, correct???
Time to start to check the voltages around the 6K6. Check pins 3,4,5,& 8. 3and 4 should have 275vdc or so. 5 should be at -15vdc or so. 8 should be at 0.
Terry
Terry: Pins 3 is 202 vdc and pin 4, 182 vdc, pin 5 is -.1vdc and pin 8 is 0. Does this seem to indicate bad 6K6? Thanks.
