modding small clone to reduce effect level and treble??

[hershey]

Hi there,
Built from tonepad layout. Anyone have thoughts to decrease the high end of the small clone chorus effect.
I notice when you hit the strings hard the chorus distorts in the tail end of the signal. even with low output tele pickups and even tweaking trimpots?
how do i reduce effect output? I notice it is slightly higher than unity gain.

thanks!

[Mark Hammer]

It is possible you do not have the bias trimpot for the BBD adjusted optimally.  The bias needs to be set right for the BBD to pass and handle audio signal cleanly.  While adjusting it, you will hear the delay signal changefrom being absent, to grungy, to slightly dirty on peaks, to clean, and then the whole sequence in reverse as you continue to tweak the trimpot.  The grit from an almost-but-not-quite-perfectly-tweaked trimpot may be what you hear.

The pedal has a 100k terminating resistor.  If level balance is an issue I suggest you replace the 100k fixed resistor with a 50k log pot, and a 47k fixed resistor between the ground end of the pot and chassis ground.  What you will have is essentially the equivalent of a 100k pot that can never be turned down past halfway.  This will let you nail levels that are both above and below the bypass signal, and won't change tone.

[hershey]

Thank you mark, I'll give it a go.