Friday, January 6, 2017

Pleiades instantaneous peak limiter (no tape recorder)

It would nice to make a Pleiades instantaneous peak limiter using the tape recorder or disc recorder reproduction pre post emphasis principles.


It can use the anode to grid bias trick so that the tube can operate at very low battery voltage.


Instead of tape and tape heads the "recording" amplifier can drive a primary winding on a Magnetec 073 core or any other suitable magnetic core.


The secondary would be the "playback output".


So effectively we have the fantastic sound of magnetic tape but with no moving parts or tape. Or effectively as if a tape is running at an extremely high speed.


But we have instantaneous peak limiting by gently saturating the magnetic core. And we also have  pre post emphasis to round back the waveform.


It should be fun to have microphones preamplified with Pleiades preamps then processed this way and then all signals combined in an adding (mixing) transformer, and recording live.



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