02-17-2026, 09:54 AM
Hi MrFixr55,
The IF is peaked up nicely. I checked the #10 3500pf cap and it measures pretty close. I don't have one but I do have a 2200pf and 1400pf I could wire in parallel. Would that be close enough? As for cap #14 I believe that is one of the leaves inside the #7 trimmer. This is similar to what is in #20 (the 100pf caps). So if #14 is part of the #7 trimmer wouldn't that cap change value as the trimmer is adjusted along with what ever else is going on in that tree. The parts list says #14 is part of #7. If I start with #7 fully clockwise and back off I can hear the tone multiple times as I back off the screw when the dial is at 1500 some strong and some weak. If I adjust as the note in the instructions say I can't find 580.
General question: As is back off a trimmer is the capacitance increasing or decreasing?
The picture shows what my #7 is made up of.
Dan
The IF is peaked up nicely. I checked the #10 3500pf cap and it measures pretty close. I don't have one but I do have a 2200pf and 1400pf I could wire in parallel. Would that be close enough? As for cap #14 I believe that is one of the leaves inside the #7 trimmer. This is similar to what is in #20 (the 100pf caps). So if #14 is part of the #7 trimmer wouldn't that cap change value as the trimmer is adjusted along with what ever else is going on in that tree. The parts list says #14 is part of #7. If I start with #7 fully clockwise and back off I can hear the tone multiple times as I back off the screw when the dial is at 1500 some strong and some weak. If I adjust as the note in the instructions say I can't find 580.
General question: As is back off a trimmer is the capacitance increasing or decreasing?
The picture shows what my #7 is made up of.
Dan
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