01-29-2013, 06:38 AM
Should have given more info in the above post. Using a DVM for readings.
I haven't replaced the R6--6K resistor biggybacked with C7---1400PF mica.
Don't have the mica. In-circuit resistance on the R6 C7 was 8200 ohms.
3rd item---I am going to have to jack the 77 osc tube out of its socket
& check for corrosion/ jungle rot on the pins/ socket connectors. As tight as
the tube is, I'm just about betting on breaking either the socket or tube
base. Grid 2 mentioned above is screen grid--sorry for the omission.
So, Terry---you're saying the antenna coil is rated a high failure area?
Have to Ohm it out.
Anyone have a good source for high value micas like C7 [1400PF]?
I'll check Dave at Just Radios & see what He's got. Thanks. Jim
I haven't replaced the R6--6K resistor biggybacked with C7---1400PF mica.
Don't have the mica. In-circuit resistance on the R6 C7 was 8200 ohms.
3rd item---I am going to have to jack the 77 osc tube out of its socket
& check for corrosion/ jungle rot on the pins/ socket connectors. As tight as
the tube is, I'm just about betting on breaking either the socket or tube
base. Grid 2 mentioned above is screen grid--sorry for the omission.
So, Terry---you're saying the antenna coil is rated a high failure area?
Have to Ohm it out.
Anyone have a good source for high value micas like C7 [1400PF]?
I'll check Dave at Just Radios & see what He's got. Thanks. Jim
