Ultimate Hum Terminator Thread

[danielwritesbac]

Post#101
Post#122
And post#127:

. . .But even 10 to 15 dB suppression is better than 0dB or positive gain for hum.. . .Here are always ground currents, it is not possible to eliminate them fully (PSU parasitic capacity if are two or more components connected together). What we can [do], is to keep this influence of those currents outside signal loop or compensate their influence.. . .

Oh yes, that's true. Actually, even 10db suppression would be amazingly effective, in comparison to not having it. And the parts cost is minimal indeed.

I just wish I'd tried it on a direct coupled buffer or low gain preamp. See if my assumption is right? Output cap for low gain preamp is maximum possible output from the source multiplied by the gain 4x~6x to determine the voltage tolerance of the coupler? 15v*6x so 100v cap would do? Is that right?