[Amps] The GU84B and GU78B tubes / some brief history

[Ian White GM3SEK]

Carl Wrote:

>> By the way, no European manufacturer ever used triodes for RF amplifiers
>> except before the time tetrodes were invented.

>Thats why G3SEK had to develop those excellent tetrode boards before 
>WW3 started in Europe from all the crummy signals.
>
>Carl
>KM1H

Not quite... I originally developed the Tetrode Boards because of all 
the crummy signals from 4CX250Bs!

The differences between triodes and tetrodes are far less important than 
the differences between individual amplifier designs, and the ways that 
individual people try to operate them.


-- 

73 from Ian GM3SEK
http://www.ifwtech.co.uk/g3sek