[Milsurplus] OK Smart People- Back Bias

[J. Forster]

IMO, it'd be simpler to make a floating HV supply. A couple of
back-to-back filament transformers, a diode bridge, and filter cap should
do it.

-John

========



> Might  "work" in the sense that you'll hear something but won't
> provide the required negative bias voltages.  Quick and dirty, would
> recommend stacking up 5 AA cells to give you -7.5 volts bias for the
> 1D8 grid and the AVC circuits.  Single 9 volt battery might work OK too.
>
> Dennis D.  W7QHO
> Glendale, CA
>
> ************
> On Jul 31, 2012, at 8:51 AM, David Stinson wrote:
>
>> I'd like to make a temporary "tacked-in" change so I can
>> use a supply with B- grounded for a short time.
>> Will 5-volt zeners connected this way work?
>>
>> http://home.netcom.com/~arc5/bias/zenerbias.jpg
>
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