[Heathkit] HR-10 Improvement on 10/15 ?
Paul Baldock
paul at paulbaldock.com
Fri Nov 25 16:20:49 EST 2011
I'm trying to increase the 2nd harmonic of the oscillator. However I
also need the fundamental to pass through (so that 80M, 40M and 20M
still work) I think the frequency double you describe has significant
rejection of the fundamental. However there maybe a way to over come that.
- Paul
At 12:35 PM 11/25/2011, Rob Doyle wrote:
>An RF Transformer with a CT secondary and a pair of diodes - arranged
>like a full wave rectifier is a standard way of building a frequency
>doubler with 10-15dB conversion loss.
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