Why bypassing this way?

StefanJ83 · 28th January 2002, 01:17 PM

Just wondering why Jan Meier is bypassing with two 100uF capacitors in series with their cathodes turned to each other.

Look at the attached picture. (Preamp out, Processor out)

Thanks //StefanJ

paulb · 28th January 2002, 01:39 PM

The caps protect the output opamp from DC voltages coming in through the second output. They are wired back-to-back to make a "bipolar" (non-polarized) capacitor. The unknown DC voltage could be either polarity.
Been hanging around Headwize, eh?

traderbam · 28th January 2002, 02:26 PM

It might sound a little better to use a single 50uF unpolarized capacitor instead.

traderbam · 28th January 2002, 02:34 PM

It might sound a little better to use a single 50uF unpolarized capacitor instead.

StefanJ83 · 30th January 2002, 10:38 PM

Thanks guys!

I'm kind of new to this and really appreciates your help.

Headwize is the page!

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28th January 2002, 01:39 PM	#2
paulb diyAudio Member Join Date: Jun 2001 Location: Calgary	The caps protect the output opamp from DC voltages coming in through the second output. They are wired back-to-back to make a "bipolar" (non-polarized) capacitor. The unknown DC voltage could be either polarity. Been hanging around Headwize, eh?

28th January 2002, 02:26 PM	#3
traderbam diyAudio Member Join Date: Jan 2002 Location: Earth	It might sound a little better to use a single 50uF unpolarized capacitor instead.

28th January 2002, 02:34 PM	#4
traderbam diyAudio Member Join Date: Jan 2002 Location: Earth	It might sound a little better to use a single 50uF unpolarized capacitor instead.

30th January 2002, 10:38 PM	#5
StefanJ83 diyAudio Member Join Date: Oct 2001 Location: Värnamo, Sweden	Thanks guys! I'm kind of new to this and really appreciates your help. Headwize is the page!