[andyr]

Some film caps have a preferred direction ... ie. one lead is longer than the other (which I think denotes the '+ve' lead?) or it has a 'dot' at the '+ve' end.

(I'm asking this because I'm about to get stuck into the cap upgrades to my GK-1!  )

Can someone explain how this works for coupling caps?  Obviously if you were using such a cap to bypass an electrolytic in a PS or as the parallel cap in, say, a 12dB/octave bass low-pass filter in a passive XO, the '+ve' end would go on the 'hot' wire.

But what about for coupling duty?  Is it simply a matter of taking the simplistic view and saying:

* on an input coupling cap, since there must be some current flowing, the higher voltage end is obviously at the input RCA ... so the '+ve' end of the cap should be connected to the RCA pin?

*  and on an output coupling cap, the lower voltage end is the "outermost" end ... so the '+ve' end of the coupling cap should be connected to the PCB and the other end soldered to the RCA pin?

Thanks,

Andy

[AKSAphile]

Some film caps have a preferred direction ... ie. one lead is longer than the other (which I think denotes the '+ve' lead?) or it has a 'dot' at the '+ve' end.

I would done it this way:

* on an input coupling cap, since there must be some current flowing, the higher voltage end is obviously at the input RCA ... so the '+ve' end of the cap should be connected to the RCA pin?

+ wire should go on middle "hot" pin of input RCA connector, - wire to the GK input

*  and on an output coupling cap, the lower voltage end is the "outermost" end ... so the '+ve' end of the coupling cap should be connected to the PCB and the other end soldered to the RCA pin?

+ wire should go on GK output pin, - wire to the hot pin of RCA output

[andyr]

I would done it this way:

+ wire should go on middle "hot" pin of input RCA connector, - wire to the GK input

+ wire should go on GK output pin, - wire to the hot pin of RCA output

Thanks, AKSAphile - will do. 

Regards,

Andy