Improving the Coupling Capacitors for Better Tone Sounding

[ricardo]

Although there have been a lot of advances in capacitors, some of the silver mica caps are definitely worth looking into.

Guru Scott Wurcer investigated caps for LN stuff. I had some correspondence with him on the subject and I think he put some of this in his Linear Audio articles on condensor microphone amps.

He found Polystyrenes microphonic and Silver Micas introduced a strange noise. The best small caps were NPO/CGO ceramics. If the voltage / values / size fit, use them.

Tantalums and some of the uber Electrolytics also introduce noise at a very low level. If LN is your thing, use cheapo Aluminium Electrolytics and bias them properly.

 

[Matador]

The best small caps were NPO/CGO ceramics.

I recently swapped some NP0/C0G ceramic MLCC's into a Fender tremolo circuit, and along with LED biasing, it gives for rock stable tremolo frequency, from the start of the gig when the bar is cold, to 2am after 12 beers.

 

[soapfoot]

…but where’s the fun in that?