I'm going to build this over the weekend.
Quote:
Originally Posted by PsychMan
Are small axial leaded inductors ok for the coils?
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I wouldn't use one for the 47u inductor. They are terrible things for long term stability. I'd probably use a spectrum communications 45u0L IFT.
Quote:
Originally Posted by paulsherwin
Do you actually need the 7805 in there? Presumably it's there to improve frequency stability and minimise FM.
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You would need it for long term frequency stability on a colpitts.
You can side step some of these concerns by using a 1MHz CMOS oscillator module instead of a VFO but you can't tune them away from 1MHz.