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I found a neat little discussion on the tiny cap we were discussing in the Choke input supply

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Posted on August 31, 2016 at 11:38:08
Michael Samra
Dealer

Posts: 36118
Location: saginaw michigan
Joined: January 30, 2005
of the 55A Fisher amps.
"For every complex problem there is an answer that is clear, simple, and wrong" H. L. Mencken

 

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RE: I found a neat little discussion on the tiny cap we were discussing in the Choke input supply, posted on August 31, 2016 at 12:45:32
Eli Duttman
Audiophile

Posts: 10455
Location: Monroe Township, NJ
Joined: March 31, 2000
The "fudge factor" cap. is essential, when SS diodes are employed. Inductive kick back spikes frequently destroy SS diodes and the cap. or a MOV is necessary, for safety. Maybe the Fisher designer was worried about inductive kick back too.


Eli D.

 

This article, too, posted on August 31, 2016 at 16:15:28

From 1957...

 

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