Stiletto channel switching pop

[rpbale]

I have a stage I Stiletto channel switching pop. It doesn't pop with the original foot switch but it does when swiitched with a Voodoo Labs GCX Guitar Audio Switcher. So I'm thinking the Mesa foot switch has a cap in it to buffer the switch? Does anyone know the inner working of the switch. I would have thought that Mesa would have put the buffer in the head not the switch.

[techineer]

The Stiletto footswitch is comprised simply of a TRS jack, with each terminal connected to a switch in series with an LED to ground. The footswitch has no buffering in it.

Boogies use a muting circuit that senses the channel change and generates a pulse sent to various devices in the circuitry that ground out the signal for a brief time to kill the pop noise.

If your Voodoo Labs GCX Guitar Audio Switcher is generating a pop without changing the channels, the muting circuit is not being activated and the pop is not being suppressed.

I see no simple way around this problem.

[Enzo]

So look inside the Boogie footswitch that works silently and see what is in it other than a switch.

[Don Moose]

The Stiletto footswitch is comprised simply of a TRS jack, with each terminal connected to a switch in series with an LED to ground.

If the LED is in series with the switch, it would keep the switch from actually grounding the control line (holding it up by the LED's Vf). Could you try tacking an LED into the control cable? (Verify the Mesa footswitch circuit first)

[rpbale]

I'll open up the mesa footswitch to verify the circuit. I believe the TRS is needed only if one is changing the solo and channel on the same line. Maybe the solo circuit is bleeding into the channel change circuit since I'm just using the 2-conductor cable??

Based on the LED being present their must be DC on the line and the LED is taking some of the load. I assume the GCX doesn't have an equivelent load inside it.

Maybe I can make a lttle inline box with two jacks with a LED or equvelent resistor so that the Stiletto can't tell the difference between the GCX or the original footswitch.

How would one go about determining the resitance of an LED because if understand it correctly resitance goes does over a certain amount voltage?

Thanks, Rick

[Pedro Vecino]

Maybe I can make a lttle inline box with two jacks with a LED or equvelent resistor so that the Stiletto can't tell the difference between the GCX or the original footswitch.

Use leds. This is the scheme: