[Milsurplus] BC-348 Audio tube bias

[John Hutchins]

John -
B- is derived off the choke to ground; The choke, audio transformer and 
a 0.05uf Cap are in a can together.
Some units have this sacred can removed.  If this is  your case a 
suitable resistor to ground will have to do.
Hutch

On 1/17/2016 12:52 PM, John Watkins via Milsurplus wrote:
> Almost finished sorting out and rewiring/removing old mods, etc.  I 
> have an AC supply in the radio, and the B- is grounded.  The VT-152 
> (6K6) cathode would like to have a bit of negative bias to avoid 
> distortion.  Read that it should be around -18V some where, and the B- 
> is also ungrounded and connected to the VT-152 on the BC-348 
> schematics.  Should I just pull the B- off of ground, or put a 
> resistor in the cathode of the VT-152 (6K6)?
>
> thanks,
>
> John WD5ENU
>
>
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