V-FETRON 75 UPDATE #1 - diyAudio
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V-FETRON 75 UPDATE #1

Posted 6th March 2016 at 03:05 PM by Michael Rothacher
Updated 6th March 2016 at 10:34 PM by Michael Rothacher

Achievement Unlocked: 75 Watt Class A Zero Feedback SIT Circlotron

Click the image to open in full size.
Soft clipping at 75W

Because of the high input capacitance of the 2SK180’s and the gain of this circuit, we have to pull out all the stops to get our 75W beast to make audio bandwidth. Here you can see that each SIT is getting its own transformer and buffer.

Click the image to open in full size.

Click the image to open in full size.

Click the image to open in full size.
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