Ciao Francesco
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
microwave).
You may be able to substitute other MMICs however, the Spectrum
Microwave parts may have higher reverse isolation.
Bruce
francesco messineo wrote:
Hi Bruce,
On 9/18/10, Bruce Griffiths<bruce.griffi...@xtra.co.nz> wrote:
Another reference on VHF crystal oscillator circuits (if you can read
German) is:
http://www.axtal.com/data/buch/Kap6.pdf
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
find.
Many thanks for the input.
Frank IZ8DWF
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