Thread: Quad FM3 tuner.
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Old 27th Apr 2013, 12:22 am   #12
fetteler
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Default Re: Quad FM3 tuner.

Quote:
Originally Posted by SteveCG View Post
Thank you Mike, however it seems from 'fettler Steve' that the 33 preamp does - do we know about the 303?
Yes we do!
The 303 has no cap across the mains - like the FM3, why would it need one? The cap (snubber) on the 33 is there to suppress switch arcs and noise, since the 33 is the component which supplies switched mains feeds to the 303 and FM3, then it's all that's required.
I seem to recall that the 303 has a ceramic cap across the AC side of the rectifier, presumably to reduce rectifier noise??

Cheers,
Steve

PS I forgot to say.... Mike, that's a lovely restoration of the FM3 there, well done. I love that tuner.and another one saved from oblivion!
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Last edited by fetteler; 27th Apr 2013 at 12:27 am. Reason: sense and PS
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