> -----Original Message-----
> From: amps-bounces@contesting.com [mailto:amps-bounces@contesting.com] On
> Behalf Of Bill, W6WRT
> Sent: Wednesday, July 29, 2009 10:29 PM
> To: amps@contesting.com
> Subject: Re: [Amps] grounding grids
>
> ORIGINAL MESSAGE:
>
> On Wed, 29 Jul 2009 21:35:47 -0400, "Joe Subich, W4TV" <lists@subich.com>
> wrote:
>
> >
> >Unfortunately, as shown by others this is not accurate and since
> >the negative feedback varies significantly from band to band the
> >floating/bypassed grids simply can't work as Heath claimed.
>
> REPLY:
>
> Also, that isn't true negative feedback anyway. It is just gain reduction.
> True
> negative feedback means taking a sample of the output, inverting the phase
> (if
> needed), and feeding it back to the input.
>
> 73, Bill W6WRT
How then would you account for the reduced IM products of a tube operated in
GG verses the same tube operated in a standard grid driven configuration?
73
Gary K4FMX
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