I tried to modify the tone control circuit by disconnecting the bass circuit. But the Treble performance changed to almost mid-high control. I don't want bass control in the amp & just want treble control.
MP
MP
Both the bass and treble controls are normaly build as one circuit, so you can't just disconnect one of them without affecting the other...
Do you have the schematic of the circuit??
Do you have the schematic of the circuit??
Use a passive treble cut control with a follower before the filter. That way you will avoid insertion loss and get some (about 6dB) of usable range. Usually one film capacitor of 47nF (to taste) and a single 10K pot+1K resistor manage the trick. All in series, with the top of the pot to the signal, and the last connection to ground. Simple enough. The whole filter is in parallel to the signal - the same node is input and output...
The regular Baxandall control will not work correctly without both filters in circuit, the slope responses are severely dependent on each other.
The regular Baxandall control will not work correctly without both filters in circuit, the slope responses are severely dependent on each other.
Just replace the stereo bass pot with four resistors.
Elsewise, draw us a circuit of what you now have.
Eric.
Elsewise, draw us a circuit of what you now have.
Eric.
Will not work if you just remove the bass controls.
The pole will shift. You can replace the Pot with two resistors of equal value - half that of the pot, so that the bass appears in mid-point always.
Or you have a passive filter as I have outlined above. It's used all the time in guitars and guitar amps. Works perfectly...
The pole will shift. You can replace the Pot with two resistors of equal value - half that of the pot, so that the bass appears in mid-point always.
Or you have a passive filter as I have outlined above. It's used all the time in guitars and guitar amps. Works perfectly...
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