bypass box with remote footswitch

[pazuzu]

i know requesting schematics is kind of cop out but i can't seem to wrap my head around this whole mechanical switching thing people keep suggesting to me. essentially i need to replace the stomp switch in the standard bypass box with a cable running a footswitch. i would greatly appreciate it if someone could explain this/ draw a simple schematic for me. i don't know why this is kicking my butt...seems simple enough.

so, to be absolutely clear at what i am trying to do: i want to use a footswitch for a true bypass box exactly the same way as is done with a remote switch on my amps. i know it is essentially a ground break but i can't figure out how to make it work.

draw me a schem. i'll send you a free born under sirius shirt and cd. thanks in advance.

[trixdropd]

search a remote indicating bypass on geofex.

[pazuzu]

thank you very much. if you pm me your address i will send you a free shirt and cd. although i doubt death metal is your bag.

[pazuzu]

so anyone have a good place to buy a dpdt relay?

[R.G.]

so anyone have a good place to buy a dpdt relay?

Mouser Electronics (www.mouser.com)
[Omron Electronics G5V-1-2 DC9] 653-G5V-1-2DC9 $1.94
Fujitsu 817-SY-9W-K $2.13
TE/ Axicom 655-2-1393788-0 $2.34

all 9Vdc, DPDT, in stock.

[pazuzu]

the schems on geofex are calling for +12v, i am assuming that this is for the led indication? (the 9v relay would be sufficient)

[pazuzu]

also, led, 3mm, 5mm, does it matter? and the on/off, i will be running that to the tip, and a ground to the sleeve just like an amp footswitch correct?

[R.G.]

I wrote that up some years ago. At the time, no one stocked 9Vdc relays, so 12V was the next easiest thing to use. Today, I'd use 9V relays so this could run from one of the AC-powered DC-providing adapters.The 12V was about the relays, not the LEDs. LEDs run on something over 2V, so anything above 5V and below about 20 can be used for them.

also, led, 3mm, 5mm, does it matter?

Only to how big a hole you have to drill. Electrically, they're much the same.

and the on/off, i will be running that to the tip, and a ground to the sleeve just like an amp footswitch correct?

Notice that it says "+On/-Off". That means that you have to make the on/off point go positive something like 5V to 12V to turn the driver transistor Q1 on. To make it go off, you pull the on/off point to ground. If I were wiring this up, yes, I'd run it to a jack where the on/off point was tied to the tip and the bushing of the jack was ground.

However, it's not clear to me what you mean by "just like an amp footswitch". What signals come down an amp footswitch are different from amp to amp, and they tend to use a switch that ties things to ground to turn things off in the amp. Amp footswitch circuits are by no means standard.

This circuit REQUIRES something to drive a voltage on the on/off point. So if what you want is another footswitch out at the end of a cable that only ties the signal to ground, you have to pull the on/off point UP with a connection to maybe the same +9V to +12V you use for the relay, and then let the external footswitch+cable short it to ground to turn the relay and LED off.