In Reply to: RE: 6883B as a audio output tube posted by unclestu on April 10, 2015 at 15:04:06:
RCA intended the 6146 series for RF use, with audio ratings as well.
Note:
1. Low screen grid voltage rating: good for better efficiency in RF (class C or AB)
2. Short dimensions: less parasitic inductance, etc. extends frequency to VHF.
For many years, the typical ham hf SSB exciter used two 6146s in parallel into a pi-network for ballpark 100 W PEP.
See:
http://frank.pocnet.net/sheets/049/6/6146.pdf
Specifically, p 14 of 29:
"High power sensitivity
90 W CW Input (ICAS) up to 60 Mc
60 W CW Input (ICAS) up to 175 Mc"
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Follow Ups
- RE: 6883B as a audio output tube - TimFox 09:33:29 04/13/15 (1)
- Differences with 6146B/6883B - Freo-1 08:47:58 04/14/15 (0)