[time-nuts] OT: xtal osc PN
bruce.griffiths at xtra.co.nz
Sun Sep 19 11:03:49 UTC 2010
The German commentary doesnt add much, but at least the circuit
annotations are in English.
The QBH125 (http://www.spectrummicrowave.com/pdf/amplifier/QBH-125.pdf)
used by one of the circuits is available on eBay and elsewhere (Spectrum
You may be able to substitute other MMICs however, the Spectrum
Microwave parts may have higher reverse isolation.
francesco messineo wrote:
> Hi Bruce,
> On 9/18/10, Bruce Griffiths<bruce.griffiths at xtra.co.nz> wrote:
>> Another reference on VHF crystal oscillator circuits (if you can read
>> German) is:
>> In particular Figures 6.20 and 6.21 on page 23.
> unfortunately I don't read german, but it seem I understand those
> circuit are derived from a Driscoll's article that I might be able to
> Many thanks for the input.
> Frank IZ8DWF
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