From richard.quick@slug.orgMon Aug 28 07:24:55 1995 Date: Mon, 28 Aug 1995 01:25:44 -0600 From: Richard Quick Reply to: usa-tesla@usa.net To: billbeskimo.com Subject: Re: transformers Quoting "M. Durller" : > How exactly does one ballast a "pole pig" or other large > commercial transformer? I have always found a few Magic Chef oven elements and an arc welder in series or series/parallel with the transformer low voltage winding worked extremely well. A "salt water rheostat" can be built in a plastic waste can doped with a few teaspoons of baking soda. Current is controlled by raising and lowering copper electrodes into the water bath. > More importantly, could someone give me any clues as to where > I might pick one up at? The Transformer Bank, Inc., University Technology Center 1313 Fifth St. SE, Minneapolis, MN 55415 Tel: (612) 379-3958, Fax: (612) 379-5962 Suppliers of surplus high voltage transformers and transmission equipment. Good source of non-shunted step up xfrmrs. Jefferson Electric Co., Elk Grove Village, Illinois USA phone is (708) 806-6500. Manufactures and supplies neon sign transformers, they also have "ballast" transformers which are internally limited high current transformers. NWL Transformers, Dept. G, Rising Sun Rd., Bordentown, NJ 08505 Source for neon sign and other transformers. Cornell-Dubilier, 1605 E. Rodney French Blvd., New Bedford, MA 02744, Tel: 508-996-8564 They bought out Sangamo Danny Churchill at Commercial Radio Co. in VT, 802-226-7582, sometimes has some interesting stuff around. I bet you'd find him interesting even if he didn't have whatever model you currently need. Among other things, he manufactures custom high-voltage inductors and transformers, in an old 3 story brick schoolhouse converted to a factory/warehouse. (T.S.) Hipotronics, Inc., RTE.22, Brewster, New York, 10590 (or 10509) TEL: 914-279-8091 Manufacturers of high-voltage test equipment. Capacitors, transformers, bussing, toroids, etc. are available. These are the guys who make the test gear that power utilities use to destroy their xmission equipment to determine breakdown limits. Maxwell Labs, Inc., 8888-G Balboa Ave, San Diego, CA, 92123 TEL: 619-279-5100 Manufacturer of commercial high-voltage equipment, capacitors, power supplies, etc.. Vacuum Tube Industries, Inc., 506 North Warren Avenue, P.O. Box 2009, Brockton, MA. 02405 USA tel: 508-584-4500, tel: 800-528-5014, fax: 508-584-0096 Specialize in new and rebuilt 450 KC power tubes for commercial RF induction heaters and the supply & control xfrmrs, cooling loops, etc.. You can get a couple of heavy duty plate transformers that can be placed in series for a HV Tesla power supply. Weisner Electronics, 149 Hunter Ave, Albany, NY, 12206 TEL: 518-438-2801 Plate xfmrs, mica caps, tubes, etc.. Or make a contact at your local power utility. Richard Quick .. If all else fails... Throw another megavolt across it! ___ Blue Wave/QWK v2.12