[Amps] 4 x GU-81 Grounded Grid Penthodes

Bill Fuqua wlfuqu00 at uky.edu
Tue Feb 28 12:09:46 PST 2012


   How about push pull parallel grounded grid?
But 4 in parallel would make for much simpler matching network.
73
Bill wa4lav


At 01:43 PM 2/28/2012 -0500, Máximo EA1DDO_HK1H wrote:
>Hi all,
>
>Ok, so lets do that, 4 x GU81 grounded grid configuration.
>Anyone has a schematic to follow?
>What levels could be fine?
>
>Thank you
>
>73, Maximo - EA1DDO
>
>
>
>
> > From: wlfuqu00 at uky.edu
> > To: ea1ddo at hotmail.com
> > Date: Mon, 27 Feb 2012 16:25:31 -0500
> > Subject: RE: [Amps] 833A/GU-48 x4 Amp support
> >
> > Maximo,
> > Look at:
> > 2 x GU81 Grounded Grid; 
> http://f5ssk.blogspot.com/2011/06/2-gu-81-grilles-la-masse.html
> > If you ground all the grids you don't need a bias supply.
> >
> >
> > 73
> > Bill wa4lav
> > ________________________________________



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