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1. [Amps] Utilization of old TV transformer (score: 1): Author: Vic K2VCO <vic@rakefet.com>; Date: Fri, 19 Mar 2010 12:32:56 -0700; I have an old TV power transformer that I am thinking about using as a plate transformer for a medium-power amplifier (2 x 813). It weighs between 15 and 20 pounds and the stack is 3.25" x 4.5" x 4".; /archives//html/Amps/2010-03/msg00376.html (7,414 bytes)
2. Re: [Amps] Utilization of old TV transformer (score: 1): Author: "Fuqua, Bill L" <wlfuqu00@uky.edu>; Date: Fri, 19 Mar 2010 16:08:23 -0400; I used TV power transformers in the past when I was much younger. I usually got around 1200volts DC at 300 or so ma. MAX with a voltage doubler. These were black and white TV transformers, perhaps yo; /archives//html/Amps/2010-03/msg00377.html (9,142 bytes)
3. Re: [Amps] Utilization of old TV transformer (score: 1): Author: "Carl" <km1h@jeremy.mv.com>; Date: Fri, 19 Mar 2010 16:20:27 -0400; You might be pushing the insulation rating by more than a hair in either configuration, especially at the unused CT depending on how it is run internally. A hi-pot will tell you all the specifics. Th; /archives//html/Amps/2010-03/msg00378.html (8,978 bytes)
4. Re: [Amps] Utilization of old TV transformer (score: 1): Author: Vic K2VCO <vic@rakefet.com>; Date: Fri, 19 Mar 2010 14:49:52 -0700; I'm replying to this particular message, but I want to thank everyone else who responded to my query, on and off list. The consensus of opinion is: 1) Forget the tripler circuit unless I want to use; /archives//html/Amps/2010-03/msg00380.html (7,915 bytes)
5. Re: [Amps] Utilization of old TV transformer (score: 1): Author: Manfred Mornhinweg <manfred@ludens.cl>; Date: Sat, 20 Mar 2010 00:01:11 +0000; Vic, Yes - but the secondary isn't! Actually it's quite a bit over the edge! You are forgetting that doubling the current QUADRUPLES the power loss in the windings! That's OK only if you reduce the d; /archives//html/Amps/2010-03/msg00388.html (8,911 bytes)
6. Re: [Amps] Utilization of old TV transformer (score: 1): Author: Vic K2VCO <vic@rakefet.com>; Date: Fri, 19 Mar 2010 17:45:46 -0700; Yes, you're right about doubling the current. I was definitely exaggerating! Trying to talk myself into it. You are right about shipping something that heavy by air! It would probably cost less to bu; /archives//html/Amps/2010-03/msg00391.html (9,084 bytes)
7. Re: [Amps] Utilization of old TV transformer (score: 1): Author: "Zeitler, Lane LT, FST-1" <zeitlel@cpr3.navy.mil>; Date: Fri, 19 Mar 2010 13:52:57 -0800; With this level of Ep I would consider 811As. I believe 813s work much better closer towards 3kvdc Ep. My Heathkit Warrior HA-10 project I am working on runs about 1600vdc on the plate and I am seein; /archives//html/Amps/2010-03/msg00434.html (9,927 bytes)

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