Resonance & Crystal meter

[9H1FQ]

Hi Guys,
I am looking for a good working circuit or kit  Resonance Meter to measure an LC frequency
Also, a crystal checker with a range of some 100khz  up to 30Mhz and possibly beyond.

Paul

[KA4POL]

I recommend this: http://www.qrpproject.de/UK/dipit.htm

[KL0S]

You could build Doug DeMaw's (W1FB) "A Tester for Crystal F, Q and R" in the January 1990 issue of QST. Circuit board available from FAR Circuits as I recall. Works great.

73 - Dino KL0S

[KA4POL]

You would need a signal generator and a frequency counter to make the circuit fully operational though.