On 4/29/06, xamboldt put forth:
>Thanks, guys. I got it completed and it does work with voltages,
>although it actually doesn't specify that in the docs as far as I
>could tell.
I don't think does either...
>One small possible non-issue - when I hook the bypass jack up to a CV
>source that is only positive-going (800 EG, for example), the lag is
>bypassed when the voltage goes below a certain threshold, but the
>Bypass LED does not light up. The only time the Bypass LED lights up
>is when the voltage goes negative (or if I touch the tip of the patch
>cord to ground). The functionality is fine in this case, but the LED
>doesn't necessarily show the status of the bypass - is this normal?
Yes, when controlling it with a jack, the LED does not necessarily
show the status of the bypass function -- the effect can be bypassed
and the LED can be off at the same time. Notice the base of Q1 and
the control input to the MUX are on opposite sides of a resistor.
While it doesn't require a negative voltage to function properly, the
bypass input needs to "see" a low enough impedance in order to turn
off Q1. When connected to an MOTM-800 it sees 2K. Although, I don't
know why the bypass LED doesn't use one of the two unused switches on
the MUX.