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Compressor in Silicon Chip (Australia) Sept 1999

8/25/1999 2:05 PM
paul perry	Compressor in Silicon Chip (Australia) Sept 1999 New (to me) compressor in Silicon Chip mag (Australia) Sep 99. Input goes to a voltage dividor consisting of a 220k and a BC549 to earth. The divider feeds an op amp (LF357) with gain 470. Op amp out goes to a buffer emitter folower, then to diode rectifier, arranged to turn on the BC549. Output taken from op amp out. Havn't tried it yet, but cant see the emitter folower being needed. We shall see.

8/25/1999 2:05 PM

paul perry

Compressor in Silicon Chip (Australia) Sept 1999

New (to me) compressor in Silicon Chip mag (Australia) Sep 99. Input goes to a voltage dividor consisting of a 220k and a BC549 to earth. The divider feeds an op amp (LF357) with gain 470. Op amp out goes to a buffer emitter folower, then to diode rectifier, arranged to turn on the BC549. Output taken from op amp out. Havn't tried it yet, but cant see the emitter folower being needed. We shall see.

Replies:

R.G. The description is very like the Or... -- 8/25/1999 7:03 PM