[sdiy] electrolytic coupling capacitors

[Peter Blackett]

Dear List ,
just a quick question with regard to coupling caps.
what do you do when the voltage on either side of the caps is roughly 
the same ?
is it beter to arrange for there to be a small amount of offset on the 
output on the op amp side of the coupling cap, or not. ?
it is well worth having coupling caps on the inputs of amps/mixers.
as you never know what circuits might put dc on the input !
regards Peter

     Theo wrote:
> Look at the level of the "internal" reference voltage and assume the
> "outside" reference voltage to be 0V.
> Now mount the caps so that they are polarized correctly based on the
> reference voltages.
> BTW Usually this means the positive side looks at the circuit.
> 
> HTH
> Theo
>