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Twin Twenty Mark II Preamplifier (Reg...

:: EPE Chat Zone ­:: ­Radio Bygones Message Board :: » EPE Forum Archives 2005-2006 » Archive through 26 May, 2006 » Twin Twenty Mark II Preamplifier (Reg Williamson) « Previous Next »

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Alan_jones
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Username: Alan_jones

Post Number: 96
Registered: 05-2005

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Posted on Wednesday, 26 April, 2006 - 02:35 pm:   Edit Post Delete Post Print Post

Does anyone have the circuit for this project? Even better the whole article as a PDF? It appeared in HiFi News and Record Review back in the late 60's. I lost my copy of the article many years ago. I know it's an "old fashioned" project, but that doesn't matter: it had a good idea that I can only dimly remember - a tone control circuit included in the feedback loop of the pre-amplifier.
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Terrym
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Username: Terrym

Post Number: 211
Registered: 05-2005

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Posted on Thursday, 27 April, 2006 - 01:14 am:   Edit Post Delete Post Print Post

This may be the same one. Published in Audio Amateur - 1971. Back issues available.

http://www.audioxpress.com/magsdirx/audelex/aabilist.htm

TM
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Alan_jones
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Username: Alan_jones

Post Number: 97
Registered: 05-2005

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Posted on Thursday, 27 April, 2006 - 10:20 am:   Edit Post Delete Post Print Post

I think it may well be Terry. The whole 1970 set on CDROM for £39.95 looks an attractive offer. I must investigate this further.

Thanks

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