06-07-2014, 08:02 PM
The cap is AC link between the Chassis and the Negative Common.
It is present in all AC/DC sets. Without it you will hear ghosts, motorboating and howling.
Why a choke....I do not know for sure but as this is a series resonant tank they want zero impedance between the two commons at a certain frequency. Why, don't know, some sort of noise reduction I guess.
Could be a wavetrap as Terry said. Although a cap is kinda large, but then maybe the choke is real smll.
It is present in all AC/DC sets. Without it you will hear ghosts, motorboating and howling.
Why a choke....I do not know for sure but as this is a series resonant tank they want zero impedance between the two commons at a certain frequency. Why, don't know, some sort of noise reduction I guess.
Could be a wavetrap as Terry said. Although a cap is kinda large, but then maybe the choke is real smll.
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