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1. [Amps] 120 cps Hum to CT Transformer (score: 1): Author: Robert Morris <robrk@nidhog.net>; Date: Sun, 21 Feb 2010 16:07:24 -0500; Somewhere in the 120 hum thread there was a comment about center tapped transformers, what reminds me to ask. What are the thoughts on using a CT transformer with a FWB? Thin CT insulation or not? Le; /archives//html/Amps/2010-02/msg00614.html (8,291 bytes)
2. Re: [Amps] 120 cps Hum to CT Transformer (score: 1): Author: "Carl" <km1h@jeremy.mv.com>; Date: Sun, 21 Feb 2010 16:33:38 -0500; Impossible to tell unless you hi pot it. With its age it may need a slow week long baking to drive out the moisture. I have a 1946 industrial xfmr with 6000 and 7500V CT @ 1.5A CCS used in the AM st; /archives//html/Amps/2010-02/msg00615.html (8,836 bytes)
3. Re: [Amps] 120 cps Hum to CT Transformer (score: 1): Author: "Paul Kraemer" <elespe@lisco.com>; Date: Sun, 21 Feb 2010 15:47:52 -0600; The big hazzard using a ct trnsformer in FWB is that the ct may not be designed to be above ground potential. Sometimes UTC printed a spec on breakdown voltage on the case or in the catalog. Of cours; /archives//html/Amps/2010-02/msg00617.html (9,575 bytes)
4. Re: [Amps] 120 cps Hum to CT Transformer (score: 1): Author: James Colville <jimw7ry@gmail.com>; Date: Sun, 21 Feb 2010 13:53:44 -0800; CG 308 and 309 are wonderful transformers. I used a CG308 in a home brew 8877. I used it on RTTY contests at 1500 watts out. Got barely warm. I had a CG-309 that I sold to someone a long time ago. No; /archives//html/Amps/2010-02/msg00618.html (9,168 bytes)
5. Re: [Amps] 120 cps Hum to CT Transformer (score: 1): Author: Robert Morris <robrk@nidhog.net>; Date: Sun, 21 Feb 2010 17:19:45 -0500; Did you use a full wave bridge and float the CT? And about five years ago, I did cook it with 300 watts of resistors. It's been dry since. -- This message has been scanned for viruses and dangerous c; /archives//html/Amps/2010-02/msg00620.html (8,753 bytes)
6. Re: [Amps] 120 cps Hum to CT Transformer (score: 1): Author: James Colville <jimw7ry@gmail.com>; Date: Sun, 21 Feb 2010 14:24:54 -0800; I used it in a full wave center tap configuration. Center tap for - (or ground) and 2 strings of diodes. Anode of each string to each side of center tap (AC), and cathodes connected together for the; /archives//html/Amps/2010-02/msg00621.html (9,175 bytes)
7. Re: [Amps] 120 cps Hum to CT Transformer (score: 1): Author: "Carl" <km1h@jeremy.mv.com>; Date: Sun, 21 Feb 2010 19:02:57 -0500; Thats 3500W CCS however you wire it. Carl KM1H _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps; /archives//html/Amps/2010-02/msg00622.html (10,193 bytes)

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