Non-latching push-button footswitch

[tmidgett]

Does anyone here will have access to a Visual Sound Dual Tap Delay?

I want to get one and convert the latching on/off switches for the delay to momentaries. Seems like easiest way to do this is replace them with the same kind of switch the device uses as the tap-tempo switch. Tap-tempo thing must be a momentary or it wouldn't work.

But I dunno what kind of switches they are, and I dunno how many poles/throws etc. Visual Sound hasn't gotten back. And ideally I'll know what I'm in for before I drop money on one.

Kindly advise if you got one of them things and care to enlighten me.

Very best,
TM

[alex maiolo]

VS probably won't tell you how to mod their pedal - just a guess.
On units like this the switch is usually soldered to the circuit board, so I'm not sure how easy the changeout will be. In fact, Line 6's are not actually switches, per se, they are heavy buttons that activate pads on the circuit board. It's a wonder they don't fail more often than they do.

My suggestion would be to get or build a small loop pedal. Replace or build with a momentary switch. That way you'll sling your signal into the delay when you depress the switch. That doesn't help you with the "dual" function so much, but I'm guessing it will get you the proper end result without having to suss out a mod.

-A

[tmidgett]

VS probably won't tell you how to mod their pedal - just a guess.

Oh no, I doubt that very much. I asked what kind of switches they were, is all.

On units like this the switch is usually soldered to the circuit board, so I'm not sure how easy the changeout will be. In fact, Line 6's are not actually switches, per se, they are heavy buttons that activate pads on the circuit board. It's a wonder they don't fail more often than they do.

My suggestion would be to get or build a small loop pedal. Replace or build with a momentary switch. That way you'll sling your signal into the delay when you depress the switch. That doesn't help you with the "dual" function so much, but I'm guessing it will get you the proper end result without having to suss out a mod.

Yeah, too many pedals. The cool thing about this thing is that it's one box to do the work of all my shit now (two rackmount delays and two keyb pedals with long-ass cords).

I'll buy one and fix it.

[Tommy]

Total speculation here, but I have a feeling that pedal uses relays. Would simply swapping switches achieve your desired momentary outcome in that scenario?

[japmn]

Are you wanting to replace the on/off switch with a momentary switch or just add a momentary switch to the regular on/off switch. Either way, I think you can do it with a Momentary (normally open) SPST footswitch. I just bought one from Small Bear to add a feedback bypass for my delay. When I push the button, the feedback will be maxed until I let go. I'll add a second pot in there too so I can set the max feedback on the momentary switch.

For what you want to do, all you will need to do is solder the momentary off of the main switch on/off lugs so that when the pedal is off and the momentary switch is depressed, the pedal comes on.

this guy

http://www.smallbearelec.com/Detail.bok?no=672

[EmpireStateTroopers]

Are you wanting to replace the on/off switch with a momentary switch or just add a momentary switch to the regular on/off switch. Either way, I think you can do it with a Momentary (normally open) SPST footswitch. I just bought one from Small Bear to add a feedback bypass for my delay. When I push the button, the feedback will be maxed until I let go. I'll add a second pot in there too so I can set the max feedback on the momentary switch.

that is awesome and I want it.

[kxbx]

VS probably won't tell you how to mod their pedal - just a guess.

Oh no, I doubt that very much. I asked what kind of switches they were, is all.

RG Keen is one of their design guys, so there's a very good chance they will tell you how to mod their pedal.

[tmidgett]

VS probably won't tell you how to mod their pedal - just a guess.

Oh no, I doubt that very much. I asked what kind of switches they were, is all.

RG Keen is one of their design guys, so there's a very good chance they will tell you how to mod their pedal.

Thanks for the tip.

Oh, and yeah, I want to replace the latching switches with momentary switches.

[japmn]

VS probably won't tell you how to mod their pedal - just a guess.

Oh no, I doubt that very much. I asked what kind of switches they were, is all.

RG Keen is one of their design guys, so there's a very good chance they will tell you how to mod their pedal.

Thanks for the tip.

Oh, and yeah, I want to replace the latching switches with momentary switches.

In that case, you may need momentary DPDT or 3PDT switches, they are a bit more expensive, but do exist.

[dropthebeat]

So I know less than nothing about poles and throws and relays, but I do have a Dual Tap and I got all up in its guts for some pictures. Hope this is helpful. Let me know if you need anything else.

[dropthebeat]

Oh yeah. The switch disassembled & pictured is for the tap tempo, but they're all visually identical. I have a picture of the middle delay footswitch too if you need to confirm this.

Great pedal, by the way.

[Nate Dort]

look like tactile switches that control a flip-flop. kinda hard to mod in that case.

[tmidgett]

dtb, thanks a ton for going to the effort to do that.

look like tactile switches that control a flip-flop. kinda hard to mod in that case.

Yes, it will require some circuitry, which is suboptimal. But it might not be too bad. I have not done this kind of thing for a while, so it'll be...interesting.

[Nate Dort]

dtb, thanks a ton for going to the effort to do that.

look like tactile switches that control a flip-flop. kinda hard to mod in that case.

Yes, it will require some circuitry, which is suboptimal. But it might not be too bad. I have not done this kind of thing for a while, so it'll be...interesting.

if they're using 555s as flip-flops, it will be easier to convert them to momentary. i bet it's some sort of dedicated flip-flop IC though.

[tarandfeathers]

dtb, thanks a ton for going to the effort to do that.

look like tactile switches that control a flip-flop. kinda hard to mod in that case.

Yes, it will require some circuitry, which is suboptimal. But it might not be too bad. I have not done this kind of thing for a while, so it'll be...interesting.

if they're using 555s as flip-flops, it will be easier to convert them to momentary. i bet it's some sort of dedicated flip-flop IC though.

Or worse, a processor that deals with all the controls. Delay and switching could all be done by a single device in fact.

[tmidgett]

I haven't disassembled it fully, but it looks like an IC, most likely something that handles everything.

The little switch is a momentary. Seems like it shorts two pins, engages the delay via flip-flop, then when you press switch again, it shorts the pins again (blip) and turns it off.

Hmmmm. JSP, Steve, and I discussed this today. Think I would need...a...3-pole momentary foot switch to make this work. Off/on/off. Starts at the top and sweeps through (off/on/off) to the other side when depressed, then lifts (off/on/off) when lifted. I'm pretty sure no one makes such a thing.

Maybe someone has a bright idea about how to do this? Or maybe someone from Visual Sound will Google "VISUAL SOUND DUAL TAP DELAY" and find this thread and help me. Or maybe I'll figure something out. It's of no use to me the way it is and the way I use delay. Seems neat though otherwise.

[tmidgett]

Ah, this might be dead easy. It can't be this easy.

I may have to do nothing more than short a couple pins on this buffer IC. SPST momentary would do it. I need to make sure I'm not sucking mass current by doing this is all.

[steve]

The switches on the thing right now are already spst (dpst wired spst right?) so if the IC thing works you can try it without getting new switches even.

[tmidgett]

The switches on the thing right now are already spst (dpst wired spst right?) so if the IC thing works you can try it without getting new switches even.

Yes indeed.

I anticipate blowing up an IC!

[Nate Dort]

I haven't disassembled it fully, but it looks like an IC, most likely something that handles everything.

"Everything" in terms of switching? Or "everything" in terms of delay as well? If it's just the switching portion, which interfaces with the separate delay circuitry, you could probably figure out what the IC output is actually latching and control it with a standard switch. I'll bet the flip-flop is just routing signal. If that's the case, just cut a few traces and run that signal through a momentary switch, maybe even the momentary tactile that's already there.

If the delay is on the IC also, then you'll have to mod the front-end of the flip-flop.