[BC] Harris MW-5 question ( HELP !!! )

[donroden at hiwaay.net]

Quoting "H.A. Stanton" <k5gvr1 at gmail.com>:

> Don,
>  No you really can't sub a bias supply.
> Things are floating above ground.
> You will likely find the "wirewound" drive pot open.
>   Harold

The 4CX Modulator's filament is to ground through the center-tapped  
transformer.  Everything fairly conventional at the modulator .....  
Its the RF section that is floating thousands of volts above ground.

The wirewound  was floating in the air on it's leads  telling me that  
it had been arcing to it's case ground once upon a time.  There is an  
inductor across the wirewound... so the resistor must shunt some AC  
across the inductor ....

Back to the books.

Don R