momentary footswitch status led ?

[lowstar]

hi everybody,

as the title says, i need to have a status led arrangement to go with a momentary footswitch.
i searched all morning, but the discussions and solutions are usually for latching footswitches.

but how do i do with a momentary ?

cheers,
lowstar

[remmelt]

Easy. It's basically the same as with a regular switch. You need an extra set of poles. Connect the LED to that, done.

[Processaurus]

I'm curious what it's for, surely no one needs a light to tell them when they are mashing on a button with their foot?

[smallbearelec]

Are you are simply turning an effect on momentarily? If so I agree with the fella who asked why you want the status LED. If you really want it, you could do it and have true-bypass using a DPDT momentary with LED-driver circuit, or a 3PDT momentary (which I don't stock, but I think other sources do.) On the other hand, if you expect a momentary switch to turn an effect on and keep it on, that's latching circuitry such as you find in BOSS or Ibanez pedals. What are you up to?

[Rodgre]

if you expect a momentary switch to turn an effect on and keep it on, that's latching circuitry such as you find in BOSS or Ibanez pedals. What are you up to?

What he said.

This is the sort of thing one might want if they were making a remote bypass switch for something with a latching electronic bypass and remote switch jack, like a Nobels pedal or if I'm correct, a TC Chorus/Flanger.

Roger

[lowstar]

thanks for all your answers.

it is for an amp - a roland acoustic combo.
it is to switch on/off the chorus, reverb, anti-feedback and mute functions.
the amp has to stereo jacks, which each switch on/off two functions by shorting tip or sleeve to ground.
the original fs 5 that is recommended doesn´t work with it, because if you use it in momentary function, the status lights don´t light up, and now for the funny part:
if you use it in latching function, the amp turns the fx on when you make the connection/led lights up (stomp 1) now you break the connection, the led dims, but the fx is still on (stomp 2) ! now you make the connection again, the fx turns off, but now the led is on (stomp 3) !
the explanation of the problem is that the amp accepts either momentary / or latching footswitches, but (i tried it by giving the impulses manually by shorting the cable) with latching signals, the amp doesn´t turn on/off when the contact is made/broken, but turns on when the connenction is made, ignores when you break the connection, and switches with the next made connection, so we have a cycle of three...

that´s the lengthy story.

the short story is, i want to build a momentary footswitch for it...but how to do with the status led ? the diagram above does not work, because the led would only light up as long as i step on the footswitch (maybe there´s a language problem, but when i say momentary, i mean it only gives a short impulse when you step on the switch).

cheers,
lowstar

[remmelt]

Ah, right. That's doable as well, you might want to check the Tonegod's domain for some digital switches. Just use one line of the switch to turn your led on and off. You may need a calibration switch or a disconnected push to align the switch and the effect.

[Rodgre]

I could be wrong, but does it make a difference if you plug the footswitch in before the amp is turned on? It almost sounds like one of those N/O or N/C switch issues that drives you nuts.... Sometimes the device you're switching wants to detect what kind of switch you're using when you first turn it on. Sometimes, if you have the "wrong" polarity switch for a keyboard's sustain pedal, it will sustain when you're not pressing it, and stop when you do.

Just throwing it out there...

Roger