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1. SV: [AMPS] SB-220 Glitch Resistor ??? (score: 1): Author: w.knol@niwa.cri.nz (Wilbert Knol); Date: Fri, 1 Dec 2000 12:05:32 1300; <snip> OK, I'm convinced. The negative side of the cap stack will go B volts below ground potential. Agreed. <snip> Good point. The board could be a problem. The only useful data I could find is in; /archives//html/Amps/2000-12/msg00384.html (10,718 bytes)
2. [AMPS] Grid bias supply? (score: 1): Author: w.knol@niwa.cri.nz (Wilbert Knol); Date: Fri, 10 Nov 2000 17:19:36 1300; Thanks for reading this message. I am in the process of reviving an old amplifier. It uses two ancient TB2.5-300 triodes in 'grounded grid' configuration. The aim is to make this thing work in Class; /archives//html/Amps/2000-11/msg00091.html (7,649 bytes)
3. SV: [AMPS] SB-220 Glitch Resistor ??? (score: 1): Author: w.knol@niwa.cri.nz (Wilbert Knol); Date: Wed, 29 Nov 2000 16:21:26 1300; I had a look at the OE5JFL crowbar. It looks like a good idea. But I would still use the glitch resistor. The cascaded thyristor network looks a bit dubious though. The ones slowest to fire could fa; /archives//html/Amps/2000-11/msg00420.html (9,263 bytes)
4. SV: [AMPS] SB-220 Glitch Resistor ??? (score: 1): Author: w.knol@niwa.cri.nz (Wilbert Knol); Date: Thu, 30 Nov 2000 16:13:43 1300; Good point. I don't like the idea of most of the HT appearing across the filament transformer secondary... Perhaps the OE5JFL circuit should have string of diodes in parallel with the sensing resist; /archives//html/Amps/2000-11/msg00442.html (10,079 bytes)
5. [AMPS] Surge voltage, HV connectors. (score: 1): Author: w.knol@niwa.cri.nz (Wilbert Knol); Date: Thu, 2 Mar 2000 08:56:47 1300; Thanks for reading this message. I am in the process of nutting out a HV supply for an old homebrew valve amplifier and have a couple of questions for the old hands. 1. The amp uses 2 x TB 2.5-300, w; /archives//html/Amps/2000-03/msg00022.html (9,408 bytes)
6. [AMPS] Re: Surge voltage, HV connectors. (score: 1): Author: w.knol@niwa.cri.nz (Wilbert Knol); Date: Fri, 3 Mar 2000 08:43:28 1300; Thanks to Tom W8JI, Han SM5KI and Gerard VE5FF for the feedback. Gerard suggested Kings Electronics 1705-1 and 1707-1 plug/connector pairs. I am in the process of getting some more info from Kings. A; /archives//html/Amps/2000-03/msg00072.html (11,445 bytes)
7. [AMPS] Re: Surge voltage, HV connectors. (score: 1): Author: w.knol@niwa.cri.nz (Wilbert Knol); Date: Sun, 5 Mar 2000 10:32:11 1300; <snip> Yes. Perhaps I should have clarified. There is no capacitor or rectifiers. All waveforms are sinewave AC. The test load is a string of lightbulbs. The magnetic shunts have been removed. Trans; /archives//html/Amps/2000-03/msg00142.html (12,039 bytes)
8. [AMPS] Re: Surge voltage, HV connectors. (score: 1): Author: w.knol@niwa.cri.nz (Wilbert Knol); Date: Mon, 6 Mar 2000 07:41:50 1300; Hi Tom and others, Thanks for the comments on the HV supply. I have decided to go back to the drawing board, having realised it would have been a lemon. Unfortunately the oven transformers have had t; /archives//html/Amps/2000-03/msg00199.html (9,465 bytes)
9. [AMPS] Re: Surge voltage, HV connectors. (score: 1): Author: w.knol@niwa.cri.nz (Wilbert Knol); Date: Mon, 6 Mar 2000 07:12:03 1300; The local council sold our power company (license to print $$) to an outfit in VE land. The technology has ended up in North American hands after all ;-) OK...that's what I will do, with interlock s; /archives//html/Amps/2000-03/msg00200.html (8,789 bytes)

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