[Amps] Re: matching network

[Ian White, G3SEK]

R. Measures wrote:
>>>>What Rich says is only true if both grids are connected directly to
>>>>chassis (and even then, the current division between g1 and g2 will
>>>>depend on the mu-g1g2 value for that particular tube).
>>>>
>>>
>>>**  True, but g1-g2 amplification is typically 4 to 5.
>>>
>>Except when it's 13, for a 4CX350A.
>
>**  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.


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