TT>Help! Any electronics whizzes out there help! Please!
TT>I've gone and stuffed my ProCo Rat II into a rack-mount chassis with a
>fairly well-filtered power supply (12vdc Shure wireless x-fmer, 7812, and
>a pair of 220mfd/35v caps). I managed to get all the control pots, LED,
>and circuit board mounted fine - but now I've got an annoying problem
>with audio "pops" whenever I use the remote footswitch to take the fuzz
>box _out_ of the signal path. Switching's being done by a mini DPDT relay
>with 12VDC coil. The DPDT is necessary to maintain the Rat's out-of-line
>bypass mode.
Are the in/outputs isolated with a capacitor? You might be getting a
charge forming on it which is then routed into your signal path when the
relay operates... Try placing a 47K ohm ( or thereabouts - 10K through
1 Meg would be fine! ) from the input to ground and from the output to
ground.
ANyway, good luck - TTYL - Dave
---
* QMPro 1.53 * Red ship crashes into blue ship... Sailors marooned...
---------------
* Origin: Grey Matter : (206) 528-1941 (1:343/210)
|