[Amps] Parasitic Suppressor 4-1000A

[R at contesting.com]

On Mar 10, 2006, at 11:15 PM, Peter Chadwick wrote:

> Steve said:
>
> >>    Adding L increases dissipation at 29MHz,
> >> decreases the parallel-equivalent resistance seen by the anode at 
> its<<
> >
> > ..increases.. I think.
>
> It does increase the effective series resistance. Rs=Rp/[1+(Rp/Rs)*2]

Indeed, Peter, and increasing series-R decreases parallel-equivalent R 
- which decreases amplification, which ameliorates the negative effect 
of the electron  tube's C-feedback, and that is what VHF suppression is 
all about.

end
>
> 73
>
> Peter G3RZP



Rich Measures, 805.386.3734, AG6K, www.somis.org