Transistor Preamp

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Joined 2011
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The Self preamp in Linear Audio uses the "Baxandall Volume Control" circuit which includes a linear (not logarithmic) potentiometer. If you download the documentation from this page , you can see the full schematic.

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Any good small, easy, high fidelity transistorised preamplifier circuit that i can build ? Plan to use it with my DIY power amp. The preamp should be able to accept ipod level input.

Any help would be appreciated.
Just for Jrp27=late memory rewind, Plz, refer to Andy Collinson's & Graham Maynard's hi fi pre-amplifier circuit _ link= http://www.zen22142.zen.co.uk/Circuits/Audio/hifipreamp.htm.
2sd30, obsolete unobtainium Japanese metal transistor hyped (net) to be single transistor audiophile preamp?
 
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Joined 2023
James Bongiorno is the designer of Ampzilla and other famous products.

Here is an article he wrote for the June 1972 issue of Popular Electronics, with the modest title

Build a Distortionless Preamplifier

Oops since it is bigger than the max filesize for .pdf here on DIYA, I have extracted each page of the article individually. There are 5 pages and 5 .pdf files attached. Sorry for the annoyance.
Impressive for a 70's Preamp