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R/C

Started by petemoore, August 14, 2005, 12:47:16 AM

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petemoore

I was thinking about I've never seen...
 A cap to ground under a gain pot wired as volume control between stages. If my reckoning is right this would allow the pot to only attenuate frequencies that the cap could pass, could be used as a low bass pass filter?
Convention creates following, following creates convention.

aron

hmmm is this different from two resistors, the junction of the two is tapped to the next gain stage and the end of the 2nd to cap to ground?

I'm trying to figure out what you mean. I think it's a low pass filter.

petemoore

Gain Stage> ---l l------R----- >Gain Stage
------------------------------------
 Gain Stage  ----R----l l----Gain Stage
 Does having the resistor following the cap influence the frequency at which the cap begins to rolloff lows?
 Does the amount of gain being 'pushed' into the R/C circuit influence the amount of rolloff at any given freq?
 I'm prototyping a 2 gain circuit and 'ended up' [desire for quickwiring or laziness] with a Cap>Resistor>gainpot [wired like Volume]>Resistor>cap....between gain stages...the offboard wiring presented itself as such an easy placeto place C's and R's that I chose to do so there....but I'm now quandering what exactly I'm doing to the rolloff/attenuation thing.
Convention creates following, following creates convention.