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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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#1
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I build 10-11 volt power supplies for my repeater's transmitters. Since
they pull around 20-25 amps I've been using 35 amp/12v rated transformers and pulling a few windings off to get 10 volts AC. The vender (Hosfelt) ran out of these and I'd like to get at least one more. The part numbers and other lables on the transformer a 430-7001-4, EIA 6-9534, CLASS 180 H1 MEXICO. They are about 4 1/2" x 4", etc. Searcing on the web did not bring any current items to me. If you have any leads please email me or visit my site http://www.dalek.org/srg Thanks !! |
#2
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![]() Karl Shoemaker wrote: I build 10-11 volt power supplies for my repeater's transmitters. Since they pull around 20-25 amps I've been using 35 amp/12v rated transformers and pulling a few windings off to get 10 volts AC. The vender (Hosfelt) ran out of these and I'd like to get at least one more. The part numbers and other lables on the transformer a 430-7001-4, EIA 6-9534, CLASS 180 H1 MEXICO. They are about 4 1/2" x 4", etc. Searcing on the web did not bring any current items to me. If you have any leads please email me or visit my site http://www.dalek.org/srg Thanks !! Hi Karl... If you don't have any luck finding exactly what you're looking for it might be worthwhile checking these folks out... http://www.surplussales.com/Transformers/HvLvTr-4.html Take care. Ken |
#3
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![]() "Karl Shoemaker" wrote in message ... I build 10-11 volt power supplies for my repeater's transmitters. Since they pull around 20-25 amps I've been using 35 amp/12v rated transformers and pulling a few windings off to get 10 volts AC. The vender (Hosfelt) ran out of these and I'd like to get at least one more. The part numbers and other lables on the transformer a 430-7001-4, EIA 6-9534, CLASS 180 H1 MEXICO. They are about 4 1/2" x 4", etc. Searcing on the web did not bring any current items to me. If you have any leads please email me or visit my site http://www.dalek.org/srg Thanks !! Some people rewind microwave oven transformers for this sort of thing, you don't need many secondary turns to get 10v out of one. |
#4
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In article ,
Karl Shoemaker wrote: I build 10-11 volt power supplies for my repeater's transmitters. Since they pull around 20-25 amps I've been using 35 amp/12v rated transformers and pulling a few windings off to get 10 volts AC. The vender (Hosfelt) ran out of these and I'd like to get at least one more. Dunno about the US, but in the UK having a bespoke mains transformer built isn't *that* expensive. More than surplus stock though obviously. -- *Middle age is when work is a lot less fun - and fun a lot more work. Dave Plowman London SW To e-mail, change noise into sound. |
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