BleedScreamer* Project

SCHEMATIC

Active simulation of "bright" or "treble bleed" circuits in volume controls in vintage amps.

With wiper completely down there is full gain (140x, 35dB) and a low-roll off at about 600hz (similar to Tube screamer circuits). Wiper completely up, there is flat unity gain. In between the C ??? acts as a "treble bleeder" as in passive controls (shunts part of pot at high frequency, increasing gain). With C ??? at around 0.1 there is a slight boost at 1 to 2kHz.

The percentage on the right (lines) represent the potmeter values (100% backwards, 1% full gain) and are quite accurate for logarithmic pots.

*no legal control can be issued, yet I ask kindly to refer to this site or my name in general in further reproduction and use