Hi Brian,
The original Bingo transceiver used a PTO for its VFO, so you should have more informations around it.
Reading the Bingo documentation is a pain however, and it is written in french (well some kind of french).
Lately F6BCU "invented" the Si570 and dropped the PTO thing.
73,
Yan.
---
Yannick DEVOS - XV4Y
http://xv4y.radioclub.asia/
http://varc.radioclub.asia/
Le 19 mai 2012 à 22:32, Brian Burns a écrit :
> Hello All,
>
> I've recently become interested in the possibility of home brewing a permeability tuned vfo for use as the basis for a glowbug transmitter. I've searched the usual sources for information on the design of permeability tuned circuits, and have found some information, but would like to gather more so that I don't end up re-inventing the whee!
>
> Does anyone know of a reference in a text, or a magazine publication on the subject, or have some personal experience building them?
>
> Many thanks!
>
> Brian Burns
>
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>
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