Looking to identify Partially known/unknown transformer.
It's supposed to be a Woodward-Schumacher output transformer made for university sound. The only markings on it are stamped into the metal and are as follows; 050-7002-00 then under that is EIA-606-227. The wires are primary black-yellow-brown-green-orange, and on secondary is blue-red. I will use tone lizards process to get winding ratio, by inserting 1v ac into the secondary and measuring the voltages coming out the primary, put that into the formula which i do not know offhand(lol)
But I'm hoping someone knows something about these ie push pull, SE, or transistor transformers. I am working my way througg all the university sound schematics I can find online looking for that part number. Any and all help welcomed!
It's supposed to be a Woodward-Schumacher output transformer made for university sound. The only markings on it are stamped into the metal and are as follows; 050-7002-00 then under that is EIA-606-227. The wires are primary black-yellow-brown-green-orange, and on secondary is blue-red. I will use tone lizards process to get winding ratio, by inserting 1v ac into the secondary and measuring the voltages coming out the primary, put that into the formula which i do not know offhand(lol)
But I'm hoping someone knows something about these ie push pull, SE, or transistor transformers. I am working my way througg all the university sound schematics I can find online looking for that part number. Any and all help welcomed!
Well I never found that part number in any schematics, but all of them are solid state amps. So more then likely these are for transistor amplifiers.
I know they are useless for tube use as they are but does anyone know if the iron can be rewound and be used in vacuum tube amps? I only paid 5 bucks for them so not a financial lose.
I know they are useless for tube use as they are but does anyone know if the iron can be rewound and be used in vacuum tube amps? I only paid 5 bucks for them so not a financial lose.
Part Number:
(TA) 050-7002-00
Product Details:
MFG Schumader for university sound. 150 watt audio transformer. 3 3/8" x 3 1/2" x 2 3/4"H.
Blue-Red wnd 1. Black-yellow-orange-green-brown-winding 2.
Primary Z:
150/300 ohms
Secondary Z:
150/300 ohms
Information obtained from:
https://www.surplussales.com/items/...ights/115225-mfg-schumader-audio-transformer/
NOTE: I am aware that "Schumader" should have been spelled Schumacher. That is just the way it was spelled on Surplus Sales website.
(TA) 050-7002-00
Product Details:
MFG Schumader for university sound. 150 watt audio transformer. 3 3/8" x 3 1/2" x 2 3/4"H.
Blue-Red wnd 1. Black-yellow-orange-green-brown-winding 2.
Primary Z:
150/300 ohms
Secondary Z:
150/300 ohms
Information obtained from:
https://www.surplussales.com/items/...ights/115225-mfg-schumader-audio-transformer/
NOTE: I am aware that "Schumader" should have been spelled Schumacher. That is just the way it was spelled on Surplus Sales website.
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Lol that is where i got them from. I took a gamble that they may be useful for 5 bucks each. Thanks for the reply though.
Well these transformers are definitely for early solid state transistor P.A. amplifiers. They are totally useless for any tube application. I have been interested in learning how to wind my own output transformers, so with that in mind I am in the process of taking them apart to use the cores. I'll keep this thread updated as it goes along. Hopefully I'll have 2 working transformers when i
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I have taken 1 of the transformers apart, I don't have a use for anything near 150w output transformer. Maybe i could make two smaller output transformers from the remains of one.
I made bobbins that fit snugly into half of the laminations. I am also working on bobbins that will take all the laminations of one transformer should it be necessary to go that route.
I made bobbins that fit snugly into half of the laminations. I am also working on bobbins that will take all the laminations of one transformer should it be necessary to go that route.