QST Magazine for February 1956, on page 39 in the Technical Topics Section has a very nice article explaining Linear Amps and AM operation The Carrier never goes away and the thing runs cooler while talking when the efficiency goes up!.
The tubes must have twice the dissipation of the carrier output. That sounds like a 30L1 with 260 watts total dissipation should do 130 watts carrier. Maybeso, remembering however that most SSB rated supplies are designed around the 20 percent duty cycle for voice operation level. Which means that the constant carrier works on it . Bottom line, on most SSB rated amps, run 1/4 total dissipation as carrier unless you have that special HEAVY iron transformer (can we say Boatanchor?). Read the article and it will all make sense.. Hope this helps.. 73 Mike 4XM -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.300 / Virus Database: 265.6.11 - Release Date: 1/12/2005
