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1. [AMPS] Tube load resistance calculation (score: 1): Author: rakefet@rakefet.com (Vic Rosenthal); Date: Wed, 26 May 1999 09:31:43 -0700; My ARRL handbook gives the following formula for calculating the load resistance of a vacuum tube power amplifier: Vp Rl = -- KIp where K is 1.5 for class AB, 1.57 for class B, and 2 for class C. I'm; /archives//html/Amps/1999-05/msg00306.html (7,428 bytes)
2. [AMPS] Tube load resistance calculation (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Wed, 26 May 99 14:57:20 -0500; I think one could derive K from the math given in some of the more detailed textbooks than the ARRL handbook. But I don't believe it has anything to do with duty cycle. It is definitely a function o; /archives//html/Amps/1999-05/msg00309.html (7,908 bytes)
3. [AMPS] Tube load resistance calculation (score: 1): Author: measures@vc.net (Rich Measures); Date: Wed, 26 May 1999 13:24:37 -0700; sure duty yes. My guess is that a more accurate calculation of RL would be based on peak anode current and peak anode-voltage change. - later, Vic Rich... R. L. Measures, 805-386-3734, AG6K, www.vcn; /archives//html/Amps/1999-05/msg00310.html (7,804 bytes)
4. [AMPS] Tube load resistance calculation (score: 1): Author: W8JI@contesting.com (Tom Rauch); Date: Wed, 26 May 1999 17:31:46 -0400; It is an approximation based on the conduction angle of the tube. The longer the period of conduction in each individual RF cycle in comparison to off-time in each RF cycle, the closer to the DC resi; /archives//html/Amps/1999-05/msg00315.html (8,624 bytes)

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