[Premium-Rx] Radios and High RF powers

[Carcia, Frank A. HS]

The performance limit will still be the
crystal / mechanical filter's ability to handle power. Years ago Sandia was
working on miniature tubes that were PC mounted to deal with EMP. HMMM push
pull Norton feed back, H mode mixers.     fc

-----Original Message-----
From: Richard Reich [mailto:richard.reich at saatt.co.uk]
Sent: Friday, May 30, 2003 10:36 AM
To: p at mn.rr.com; richard.reich at saatt.co.uk; 4cx250b at muohio.edu;
premium-rx at ml.skirrow.org
Subject: Re[2]: Re[2]: [Premium-Rx] Radios and High RF powers


Jim,

A decent tube will have a very comparable noise figure at HF compared to
semiconductors. Don't write-off tubes just cos they're old technology.

I have several tubes sets in my collection, and all of them handle signals
at
least as well, if not better than semiconductor sets - and non of them have
ever
died as a result of even an almost direct lightning strike. Shortcomings in
tubes are little to do with noise  - honest - trust me on this one.

I now retire to my nuclear bunker....

Richard
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Richard Reich    
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