- 1. [Amps] RE: FW: diode strings...bias (score: 1)
- Author: 2@vc.net (2)
- Date: Fri, 2 Aug 2002 07:40:25 -0700
- You forgot to figure in the 120v of RF. 1V + 4.5V = 5.5V. . . . 5.5V/120V = 4.6% regulation - however, it's RF-NFB, which reduces IMD. No one who replaced the 1A grid chokes with 30-ohm frangible re
- /archives//html/Amps/2002-08/msg00026.html (8,696 bytes)
- 2. [Amps] RE: FW: diode strings...bias (score: 1)
- Author: 2@vc.net (2)
- Date: Wed, 31 Jul 2002 19:08:46 -0700
- ** If 600pF of grid bypass to gnd was causing the drive requirement to go up, there should have been a difference between 3.5 and 29MHz. At 3.5MHz, 600pF has 75-ohms. At 29MHz, 9.5-ohms. ** the 922
- /archives//html/Amps/2002-07/msg00005.html (10,015 bytes)
- 3. [Amps] Re: FW: diode strings...bias (score: 1)
- Author: 2@vc.net (2)
- Date: Wed, 31 Jul 2002 06:07:43 -0700
- ** Frequency didn't matter? ** 10m is the band where 600pF of grid bypass [XC=9.4-ohms] is seemingly enough. Since a typical "Zero-inductance" 3-500Z grid-grounding strap has c. 15nH of XL at 10m, a
- /archives//html/Amps/2002-07/msg00543.html (9,873 bytes)
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