Re: Building the 'Minimod' AM modulator-questions!
Hi
I have just found this thread after reading the one posted by Coopzone.
I made a Minimod and found the frequency drifted, after a few hours it was almost off station altogether.
I used mica capacitors for the tuned circuits, could this be the cause, are Polystyrene better.
Or could it be something else causing it to drift.
I even fitted a zener diode in the supply to the VFO.
Mike
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