![]() ![]() When your instrument sells, you earn 91.8 of the selling price. Listing your gear is always free on Reverb. Frequencies above 1/(2*PI*RC) are NOT volume attenuated normally but rather per the "taper" resulting from "added" resistor (R) being in parallel with the "upper" portion of the volume potentiometer. Reverbs pricing is simple and straightforward. SERIES RC treble-bleed circuit: here, the "added" resistor (R) and capacitor (C) are connected in-series across the volume pot, so the volume potentiomenter "acts" normal for bass- and mid-range frequencies however, at some high frequency, the "added" cap "shorts" the "added" resistor across the "upper portion" of the volume pot causing it's volume setting to "appear" higher (ie, more volume).but, this variation "changes" with the volume pot setting.ie, LOT's of effect at LOW volume settings and LITTLE effect at HIGH volume settings. Frequencies above 1/(2*PI*RC) are passed through with NO volume attenuation. Technically, it's called a "high-frequency SHELVING circuit" because it causes the highs (and ONLY the highs) to be passed through at a higher volume than ANY of the bass- or mid-range. However, for the higher frequencies, the "added" capacitor (C) "shorts" across the added resistor, making the volume pot "act" as if it's at full volume. The headphone signal which is centered at 1.65V leaves the audio codec, it goes into the capacitor that removes the DC Offset, there is then a resistor afterwards which serves to charge the capacitor on power up to remove the pop when headphones will be plugged in and out. ![]() Linear "taper" is 10% rotation = 10% of resistance, 50% rotation = 50% resistance, etc. I recently bought an old Musicmaster Bass amp from a fellow TDPRI member and Im going to re-cab it and would like to know what can be done to ehnance the function of the single tone control. PARALLEL RC treble-bleed circuit: the "added" resistor (R) is ALWAYS in the circuit, so it affects the "taper" of the potentiometer, ie: how much resistance per unit of rotation. AllpartsĀ® Music Corporation is the worlds leading distributor of guitar, bass, and amplifier parts to retailers, builders, and techs. ![]()
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