> 4CX250 tetrodes are cheap enough and they work very well. Amplifier
> circuits for this tube are available on the http://sonic.ucdavis.edu
> amateur radio pages and many Radio Handbooks.
>
> cheers
> skipp
The 4CX250 amp looks like a CB amplifier Skipp. It certainly can't
be a very good amp for ham radio.
It takes 1-5 watts of drive, and worse yet has no screen regulation,
current limiting, or metering.
I certainly hope not many are used on amateur bands!
It looks like a copy of a CB amplifier marketed under the guise of a
"amateur linear" by a company that sold out-of-band crystals for
CB radio's in the 70's and early 80's.
73, Tom W8JI
w8ji@contesting.com
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