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1. [Amps] Transformer question... (score: 1): Author: "Bill Otten" <harpman54@tampabay.rr.com>; Date: Tue, 8 May 2007 19:23:03 -0400; Hi, I'm new to the group and just learning a great deal reading through the archives of this list. One question I have: I was given a United Transformer model S50 (called the special series in the on; /archives//html/Amps/2007-05/msg00081.html (7,325 bytes)
2. Re: [Amps] Transformer question... (score: 1): Author: "jeremy-ca" <km1h@jeremy.mv.com>; Date: Tue, 8 May 2007 20:04:56 -0400; Those oldies were made for tube rectifier and choke input filtering. Size would indicate something in the 400-500 ma range at ~2500 or 3000 VDC, I dont have quick access to my old UTC catalogs to con; /archives//html/Amps/2007-05/msg00082.html (9,642 bytes)
3. Re: [Amps] Transformer question... (score: 1): Author: "k7rdx" <k7rdx@charter.net>; Date: Tue, 8 May 2007 17:31:53 -0700; Carl`s right about the older transformers...They were designed for choke input supplys and high voltage/low current tubes of that era,and probably with a current rating of 300-400ma. The best money s; /archives//html/Amps/2007-05/msg00083.html (10,737 bytes)
4. Re: [Amps] Transformer question... (score: 1): Author: Radio WC6W <wc6w_amps@yahoo.com>; Date: Wed, 9 May 2007 09:26:10 -0700 (PDT); Hi Bill, That transformer is designed to be operated with the secondary center tap grounded. It is not insulated for full wave bridge connection. And it's only good for about 1KW. Hardly enough to wa; /archives//html/Amps/2007-05/msg00090.html (9,330 bytes)
5. Re: [Amps] Transformer question... (score: 1): Author: "Bill Otten" <harpman54@tampabay.rr.com>; Date: Wed, 9 May 2007 21:15:50 -0400; Hi Marv, This particular transformer doesn't have a secondary center tap -- just the primary does (115 volts). The secondary(s) are two posts marked 5000v and two more marked 6000v. The best I could; /archives//html/Amps/2007-05/msg00098.html (11,140 bytes)
6. Re: [Amps] Transformer question... (score: 1): Author: Radio WC6W <wc6w_amps@yahoo.com>; Date: Fri, 11 May 2007 08:27:33 -0700 (PDT); Hi Bill, I have several UTC catalogs from 1956 through 1964 and they all list the S-50 as having a center tapped secondary. I used to have a couple of parts from that family myself back in the 2nd mi; /archives//html/Amps/2007-05/msg00118.html (13,499 bytes)

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