- 1. [AMPS] technical question (score: 1)
- Author: Peter_Chadwick@mitel.com (Peter Chadwick)
- Date: Thu, 10 Jun 1999 12:18:25 +0100
- In the early 1970's there was a National Semiconductors app note on a modulated switching regulator, supposedly for use in powewring a high efficiency solid state HF linear. The idea was to vary the
- /archives//html/Amps/1999-06/msg00340.html (7,814 bytes)
- 2. [AMPS] technical question (score: 1)
- Author: wc6w@juno.com (Radio WC6W)
- Date: Thu, 10 Jun 1999 14:50:18 EDT
- voltage in tube a is with SSB. Hi Peter, If you were thinking of National AN-8, that example was probably somewhere around the 25 watt level. I suppose that was an early "Class H" amplifier... though
- /archives//html/Amps/1999-06/msg00348.html (11,170 bytes)
- 3. [AMPS] technical question (score: 1)
- Author: Peter_Chadwick@mitel.com (Peter Chadwick)
- Date: Fri, 11 Jun 1999 09:38:19 +0100
- I The whole point of amateur radio is 'self training in the art of wireless telegraphy'. If what you've described isn't self training, then what is? And even if the results are negative in the end, a
- /archives//html/Amps/1999-06/msg00364.html (7,528 bytes)
- 4. [AMPS] technical question (score: 1)
- Author: ns1z@arrl.net (John / NS1Z)
- Date: Fri, 11 Jun 1999 04:00:43 +0000
- I worked at a 'little' shortwave station in Greenbush, Maine that did that. The tube anode was supplied by 28 modules @ 1 kV each. Solid state control switched in the number of modules required via f
- /archives//html/Amps/1999-06/msg00367.html (9,058 bytes)
- 5. [AMPS] technical question (score: 1)
- Author: Peter_Chadwick@mitel.com (Peter Chadwick)
- Date: Fri, 11 Jun 1999 12:01:39 +0100
- A bit bigger than I was thinking of! I've heard of the California kilowatt but.... An interesting technique. Tnx, John. How did they handle tank circuit dissipation? I did some sums, and if you have
- /archives//html/Amps/1999-06/msg00372.html (7,670 bytes)
This search system is powered by
Namazu