[Amps] Has anyone ever actually build an 833A linear?

Mike Waters mikewate at gmail.com
Wed Dec 19 23:14:09 EST 2012


Gary (et al),

How about adding a tertiary winding to the step-up transformer, and use
that for the out-of-phase neutralizing signal? One end of the winding to
ground, the other end to a neut. capacitor connected to the plate?

You may be right on the requirements of the drive signal to the swamped
grid. I have a couple of ideas there.

73, Mike
www.w0btu.com

On Wed, Dec 19, 2012 at 12:48 PM, Gary Schafer <garyschafer at comcast.net>wrote:

> You will need a push pull type of grid circuit in order to neutralize them.
> The bridge type circuit will not work well.
> If you just swamp the grids with a resistor and use a step up transformer
> it will take more drive than it is worth.
>
> 73
> Gary  K4FMX
>


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