[Milsurplus] OK Smart People- Back Bias

[David Stinson]

Thanks, All.
The battery solution seems best.

----- Original Message ----- 
From: "mac" <w7qho at aol.com>
To: "David Stinson" <arc5 at ix.netcom.com>
Cc: <milsurplus at mailman.qth.net>; <boatanchors at mailman.qth.net>; 
<boatanchors at theporch.com>
Sent: Tuesday, July 31, 2012 11:47 AM
Subject: Re: [Milsurplus] OK Smart People- Back Bias


> 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
>
>