Radio Shack clock - help to locate transformer's info from known p/n

Oct 01, 2007 3 Replies
M

Hello list,



I have got a dead radio clock--Radio Shack model 12-1950 (Chromatic



290). The transformer primary is open. Fortunately, and to great compliment to Radio Shack, the complete parts list for the clock is available online at the Radio Shack support page:
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Unfortunately, I don't live in the US, and can't visit a Radio Shack store to buy a replacement. I'd like to obtain the electrical characteristics (to look for a similar transformer locally). Anyone knows what are the electrical characteristics of this transformer?



The parts list says: 11281672 TRANSFORMER,POWER UL APP TA0361



The transformer is center-tapped, on the transformer there are letters: CEFV3510-9 1-7399



Thanks!



-- Max



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G

MaxVT wrote in news:1191235944.229798.199980 @y42g2000hsy.googlegroups.com:

Likey 6 or 9V each side of the tap, around 300 ma.

The letters are simply a maufacturing code

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H

page:

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Look for an open thermal fuse on the primary side, you can bypass it to get the unit to work temprarily and to measure the secondary voltage. Is it 120V or 240 V primary??

H. R. (Bob) Hofmann

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F

On Mon, 01 Oct 2007 03:52:24 -0700, MaxVT put finger to keyboard and composed:

The application diagrams in the LM8560B datasheet show two possible configurations for the transformer.

See

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The datasheet for the TA7368P recommends a supply voltage of 6V, and the TA2003P can operate between 1.8V - 7V.

- Franc Zabkar

Please remove one 'i' from my address when replying by email.
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