All about Tubes, Tube Circuits, Tube Gear

Monday, June 25, 2012

RIAA Preamp (part 6):

Here are the last useful RIAA EQs:

(G) Columbia 78 rpm

 (F) RCA 78 rpm

(H):  Decca FFRR

 Note that with the last (Decca FFRR), only the lower left cap is the same, and this is best made up as a separate network.

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