Audio precision preamplifier

179

02:33:34

Douglas Self design, as appeared in Wireless World Magazine october 1983 issue.

1st stage:       Phono RIAA preamp           (Upper left side)
2nd stage:     Subsonic filter                     (Upper center)
3rd stage :     High impedance buffer      (Lower left side) 
4th stage:      Tone control                        (Lower center)
5th stage:      Active gain control              (Lower left)
                        Input selector                      (Upper right side)

published 10 months ago

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