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in progress ...

as i get approvals i will move schematics and other info here...
here's some useful stuff, in no particular order:

API® Pinout

Aphex Pinout

History of 500 series EQ's by Avedis

A brief history of API® by Dan Alexander Audio

A brief history of API® by API®

www.Gearslutz.com

BIGRACKAUDIO.COM
...affordable support hardware for the 500 crowd

DIY Resources:

Transformer Options for DIY by Jens at Eisen Audio:

Input

Output

Line Level

Inst Level

Op-Amp Options - Table compiled by Jens at Eisen Audio

API® 312 shematic at Dan Alexander Audio

API® 325 shematic at Dan Alexander Audio

Thread at Prodigy Pro for converting API 325 to 312

Edge Card Connector for API 325/312 modules is Edac connector available at Digikey EDC306150-ND

 

 

 

 

 

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