11-10-2018, 09:41 PM
Thanks, David!
Spent a while looking for the 47K resistor #30...then I realized it's in the IF can. I found the 3.3 meg #29 and it's attached directly to the volume control.
Doing your test, with no station I get -.6 VDC at that point.
When I get the strong local station to come in for a second or two, I get -1.8 VDC.
Am still wondering if, even though it tests OK, if that 14Q7 tube is causing this lack of station hold. I won't be able to verify that until I get the tube next week sometime.
Spent a while looking for the 47K resistor #30...then I realized it's in the IF can. I found the 3.3 meg #29 and it's attached directly to the volume control.
Doing your test, with no station I get -.6 VDC at that point.
When I get the strong local station to come in for a second or two, I get -1.8 VDC.
Am still wondering if, even though it tests OK, if that 14Q7 tube is causing this lack of station hold. I won't be able to verify that until I get the tube next week sometime.
Greg V.
West Bend, WI
Member WARCI.org
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