loop question

[Kev]

okay

is there such a thing as a double loop pedal in which you can change which loop goes first by a switch or something?

e.g

Bass > loop 1 > loop 2 > amp

flick switch

Bass > Loop 2 > Loop 1 > amp


if so, what? can it be done? because it really would be quite useful, as there are some pedals i like before and after others for different uses.

[bnt]

Hmmm... I know there are expensive systems that can do switch anything in any combination, e.g. the [url="http://www.tcelectronic.com/G-System.asp"]TC Electronics G System[/url] or the [url="http://www.soundsculpture.com/products/switchblade.htm"]Sound Sculpture Switchblade[/url], but I imagine you're looking for something a bit cheaper.

You could make one, with parts from Maplin, or get someone else to do it. [url="http://www.monkeyfx.co.uk/index2.html"]These guys[/url] (UK) or [url="http://www.loop-master.com/"]these guys[/url] (USA) might be happy to make one up if you ask nicely - or might even do it already. (I can't see it on their websites, but they each make several different types of loop switching pedal.

[Kev]

i dont know how it would work though. im perfectly capable of making my own loop pedal, but iv no idea how i would do it so id be able to swap the order of the loops. i dont really want any electronics involved, but i think there would need to be...oh i dont know

Edited August 4, 2008 by BassManKev

[Alien]

I've built a double loop pedal with that facility - gave it away as a raffle prize at the last bash.

I've still got a prototype pedal that I call a Twister, which is designed to re-arrange your pedalboard or bypass the lot. It was originally intended to allow guitarists to go Wah -> Fuzz (Hendrix style) or Fuzz -> Wah (everybody else). Switching options are:
Bass ->Loop 1 -> Loop 2 -> Amp
Bass ->Loop 2 -> Loop 1 -> Amp
Bass -> Amp (bypass)

The pedals use relays rather than switches, so they do need power.

PM me if you're interested in this or anything else.

Andy

[Kev]

certainly interested, pm'd

[bnt]

Alternatively, if you fancy a bit of DIY, I've cobbled together a wiring diagram that ought to work. It's passive, but requires a 3-pole dual toggle switch for the A-B / B-A switching, the kind that [url="http://www.wah-wah.co.uk/price4.html"]these guys[/url] have for £ 6.00 each, and I think there are also some on t'Bay.

My diagram is a bit rough, thrown together in PowerPoint, but I hope it looks like something:
[attachment=11601:AB_BAswitch.gif]
(In case it's unclear: the bottom left pin on the 3PDT is connected to both the top right pin and Return 2.)

[Alien]

[quote name='bnt' post='254997' date='Aug 5 2008, 01:08 AM']Alternatively, if you fancy a bit of DIY, I've cobbled together a wiring diagram that ought to work. It's passive, but requires a 3-pole dual toggle switch for the A-B / B-A switching, the kind that [url="http://www.wah-wah.co.uk/price4.html"]these guys[/url] have for £ 6.00 each, and I think there are also some on t'Bay.

My diagram is a bit rough, thrown together in PowerPoint, but I hope it looks like something:
[attachment=11601:AB_BAswitch.gif]
(In case it's unclear: the bottom left pin on the 3PDT is connected to both the top right pin and Return 2.)[/quote]

I'd make the bypass switch a DPDT to give true bypass, otherwise you'll have the inputs adding crud to/sucking tone from your signal.

Using a 3PDT works, but you get no indication of what's happening. You'd need an extra pole to work a LED.

Andy

[Cernael]

[quote name='Alien' post='255321' date='Aug 5 2008, 01:53 PM']Using a 3PDT works, but you get no indication of what's happening. You'd need an extra pole to work a LED.[/quote]
...in which case you'd also need a battery to power the LED. Unless you want the run it on power from the signal...but that's gonna affect tone a bit, just like non-true bypass, right?

[bnt]

[quote name='Alien' post='255321' date='Aug 5 2008, 12:53 PM']Using a 3PDT works, but you get no indication of what's happening. You'd need an extra pole to work a LED.[/quote]
I did see your previous post, with your design - I just wanted to put a "concept" passive design out there too. It would avoid the hassle of batteries, but it presupposed that the user can hear the difference between the two settings.

[Mace]

Check it out:

[url="http://cgi.ebay.co.uk/Napalm-Doop-Loop-2-in-1-box-True-Bypass-Looper_W0QQitemZ260220941039QQcmdZViewItem?hash=item260220941039&_trkparms=72%3A985%7C39%3A1%7C66%3A3%7C65%3A12%7C240%3A1318&_trksid=p3286.c0.m14"]http://cgi.ebay.co.uk/Napalm-Doop-Loop-2-i...id=p3286.c0.m14[/url]

Expensive but look way cool...