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1. [Amps] RF voltage on VHF strip line (score: 1): Author: N1BUG <paul@n1bug.com>; Date: Fri, 28 Oct 2016 15:37:58 -0400; So, moving along from the topic of screen grid voltage regulation and direction of current flow, here is my other/next question... Suppose you have a 4CX1500B sitting in the middle of a half wave pla; /archives//html/Amps/2016-10/msg00133.html (8,530 bytes)
2. [Amps] RF voltage on VHF strip line (score: 1): Author: John Lyles <jtml@losalamos.com>; Date: Fri, 28 Oct 2016 18:43:53 -0600; strip line for 144 MHz. Some may prefer to think of it has two quarter wave lines with the tube between them. This is a "teflon sandwich" line where the upper brass plate is connected to the tube ano; /archives//html/Amps/2016-10/msg00141.html (10,689 bytes)
3. Re: [Amps] RF voltage on VHF strip line (score: 1): Author: Steve <g8gsq72@gmail.com>; Date: Tue, 1 Nov 2016 11:06:26 +0000; What effects/damage are you seeing? Does it always happen in the same place? Can you run the amp with reduced plate voltage? That might show up whether it's a marginal effect where rf on top of dc is; /archives//html/Amps/2016-11/msg00008.html (9,176 bytes)
4. Re: [Amps] RF voltage on VHF strip line (score: 1): Author: N1BUG <paul@n1bug.com>; Date: Tue, 1 Nov 2016 18:16:33 -0400; On 10/28/2016 08:43 PM, John Lyles wrote: With respect to earth, the RF voltage swing is largest at the center of the tube. But across the dielectric of the blocking cap, the RF voltage should be low; /archives//html/Amps/2016-11/msg00010.html (10,862 bytes)
5. Re: [Amps] RF voltage on VHF strip line (score: 1): Author: N1BUG <paul@n1bug.com>; Date: Tue, 1 Nov 2016 18:57:45 -0400; Arcing somewhere which kills the zener diodes in the screen supply. Does it always happen in the same place? I don't know where it happens. That's the problem. I am asking questions in an effort to i; /archives//html/Amps/2016-11/msg00015.html (13,185 bytes)

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