Re: [Amps] Re: matching network

["Ian White, G3SEK" <G3SEK@ifwtech.co.uk>]

R. Measures wrote:
> > > **  Ian --  How does one convert this figure into a determination of
> > > how grid current divides between the grid and the screen during g-g
> > > operation?
> >
> >
> > Sorry, maybe what I said was misleading - I'm not sure if it's possible
> > to calculate Ig1/Ig2 in cathode-driven operation directly from mu-g1g2.
> >
> > They both result from the tube's internal tube construction, however,
> > which is why I believe that if one is high, the other will be too.
> **  So if a tetrode with a g-/g2 amplification of 4 to 5 has c. 25% of
> total grid current flowing in the screen, a tube with a g/g2
> amplification of 13 might have c. 8% of the total grid-current flowing in
> the screen?

Couldn't say... you'd have to do a point-by-point analysis using the 
characteristic curves.


--
73 from Ian G3SEK         'In Practice' columnist for RadCom (RSGB)
                           Editor, 'The VHF/UHF DX Book'
http://www.ifwtech.co.uk/g3sek
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