Dale Parfitt <PARINC1@...> added the photo album DRAKE TR-7 DIGITAL VFO : The VFO is from QRP Labs and employs the Si5351A CMOS clock generator and a TCXO time base. A PIC controls the clock and LCD readout: https://www.qrp-labs.com/vfo.html

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Dale,

Thanks for that. Better than I expected.

73
Paul, N9PL

Hans, G0UPL , designer of the? VFO I used in my TTR-7 digital VFO has sent a link to an excellent white paper he wrote on the Si5351A phase noise. Well worth the read at:

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73,
Dale W4OP