Rich Measures wrote:
>>and last ,i'm looking for a high power amp
>>for 2 meter ssb ( 500 + out put) any body
>>want to sell one?
>
>A pair of 4cx250Rs in parallel, self-contained, designed and built by
>yours truly. 20db gain. Class AB1. About 1000pep watts out on SSB.
>designed for10w pep drive. The built in 2200v power supply is not
>suitable for FM, RTTY or A0. $100 plus ups. 120v/20a. Must be tuned up
>with a keyer sending 50wpm dits, or with a tuning pulser.
The gain is right - and by goodness the price is certainly right -
but expect no more than 500W PEP of *linear* SSB. Otherwise expect to
lose a lot of friends.
No criticism of Rich's particular design; the limitation is in the tubes
themselves.
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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