Wednesday, October 14, 2015

Pleiades K117 JFET battery pre preamplifier 2nd prototype

This is using a FREED input transformer of about 1:60 ! turns ratio and primary inductance of 40mH.


Great for compensating bass proximity effect, amazing sound using an MD-421 foe intimate vocals.


Since this is a source follower of low impedance it can be connected to the input of  a V72.



Pleiades K117 JFET battery microphone pre preamplifier

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