[AMRadio] Oscillator Filament Voltage change and frequency drift

W5OMR/Geoff w5omr at satx.rr.com
Fri May 12 10:56:19 EDT 2006

Jim Candela wrote:

> I'm wondering about those 6AU6's. Not all of us have
>a Sola CVT, so I have another idea. Change the tube
>for a 5AU6, and then take the 6.3 vac (usually
>unbalanced), and 1/2 wave rectify with a low drop
>Schotcky diode (about 0.3 volt forward drop), filter,
>and then run through a 3 terminal low drop 5 volt
>regulator. I'll do some book searching for some
>suitable part numbers. 


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