Low Frequency Mains Noise
Ian Bell wrote:
Eeyore wrote:
Ian Bell wrote:
Yes, that's my other problem. The simple CC cascade pair with NFB I am
using has a very poor PSRR.
Not a problem with solid state you see.
PSRRs are typically in the 120dB region.
Only if you use op amps.
Well who wouldn't ?
The dc coupled triple typical of the Neve class
A preamps is just as bad as its tubed version.
Except they did at least have regulated power supplies !
Graham
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