Good morning Group. I am starting to change My BC transmitter to 160 and maybe 75 meter and I just got to wondering do most of you use the Large tank coils for 160 or do you wind up your own and go from
there?? Thanks Tim..WD4TC..
Tim...as Don said, most of us with the Gates rigs just reduce the capacitor values in the tank and loading circuit and retune the inductors. It depends on where in the BC band that your transmitter was tuned. The manufacturer supplied different value capacitors depending on the frequency it was ordered for.
I don't know what TX you have, but as for my Gates BC-1G. I halved the capacitance for 160 and then halved it again for 75. It works FB on both bands. Again, depending on the freq and component values you start with you can play around with it to achiever resonance with a satisfactory Q.