Bill KB7YUM wrote:
>
>Hi All,
>Question:
> Is the circuit on page 5.33 in the sixth edition of Radio Communication
>Handbook. Editor Dick Biddulph-called a PA0FRI Amp a similiar amplifier to
>the DAF?
It's a derivative, because it generates the screen voltage by rectifying
the RF drive, but:
* The screen rectifier arrangement is different
* It uses sweep tubes
* It uses cathode bias
...a bit like, "The handle has been changed and so has the head, but
it's still a broom."
73 from Ian G3SEK Editor, 'The VHF/UHF DX Book'
'In Practice' columnist for RadCom (RSGB)
http://www.ifwtech.demon.co.uk/g3sek
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