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audio transformer spec quad esl
audio transformer spec quad esl
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Old 6th February 2009, 11:45 AM   #1
mynameis_nobody is offline mynameis_nobody  Sweden
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Default audio transformer spec quad esl

Hello im currently renovating three quad esl 57 one of the audio transformer is broken " self inflicted" havenīt found any spec on the transformer. would like to get replasment for it.
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Old 6th February 2009, 10:24 PM   #2
bear is offline bear
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audio transformer spec quad esl
Four choices:

- replace with "old stock"/used original unit. (ebay, etc...)
- replace all three with new xfmrs of suitable spec
- buy three "new" xfmrs from the German (iirc) company that is now making them. (or other supplier like that)
- reverse engineer the bad xfmr, and wind ur own (or have it wound for you)

Determining the turns ratio and freq resp, etc (the xfmr specs) isn't that difficult to do using one of the "good ones."

http://www.bearlabs.com -- Btw, I don't actually know anything, FYI -- every once in a while I say something that makes sense... ]
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Old 10th February 2009, 05:17 PM   #3
frank ziel is offline frank ziel  Germany
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Location: Berlin
Hi nobody,
you can ask them, they have made all transformers for QUAD:
Sowter Transformer Ipswich England
they are very friendly.
Good luck!
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Old 11th February 2009, 11:20 AM   #4
405man is offline 405man  Scotland
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Location: South Lanarkshire near Glasgow Scotland
I have a spare one I would be prepared to exchange for your faulty one, send me an email if you are interested

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