This is an extremely simple tone control of the passive type, which means that it doesn't amplify but acts as a filter instead. This is the reason why it doesn't need a power supply.
P1 adjusts the bass and P2 the treble. For more bass, turn the runner of P1 towards R1. For more treble, turn yhe runner of P2 towards C3. Of course, this is not hi-fi but it is very suitable for small amplifiers like our 200mW amplifier.
Parts List
Unless otherwise stated, resistor wattage = 0.25W.
P1 adjusts the bass and P2 the treble. For more bass, turn the runner of P1 towards R1. For more treble, turn yhe runner of P2 towards C3. Of course, this is not hi-fi but it is very suitable for small amplifiers like our 200mW amplifier.
Parts List
Unless otherwise stated, resistor wattage = 0.25W.
- R1, R3 = 10KW
- R2 = 1KW
- P1, P2 = 100KW lin.
- C1, C4 = 10nF
- C2 = 100nF
- C3 = 1nF
- C5 = 10µF