Hello.. looking for a suggestion on a delay that has your standard mix, tone/color, feedback/repeats, time but in addition, has jacks for expression pedals that could be used as the control for any/all of those variables.
I have one of these guys--
(http://www.guitarcool.com/review/geffect/vox/tonelab_se/tonelab_se.jpg)
The hands-down, coolest feature about the tonelab is the fact that you can assign the expression pedals to do pretty much anything effect oriented. You can use it to roll on gain for an overdrive circuit. You can obviously use it as a volume pedal or a wah pedal. But 90% of the time I have the left pedal set for delay input and the right pedal set for the amount of repeats.
I want to try and recreate this with like a Rebote or an AD-3208 or something along those lines. Is this possible? I've read R.G.'s post about how you can add an expression pedal to any effect but I'm not sure if I'm over my head here. I've only built the byoc tubescreamer clone and I'm wondering if this is too lofty of a project as my second build.
Thoughts, suggestions, schematics?
As always, thank you guys for your time. :]
You can put an expression jack/pedal on almost any pot in almost any pedal, but if you're looking for a built unit, i would look at the line6 dl-4 or the empress superdelay...and of coarse not in that order! ;D The dl-4 has a cool exp setup because you can use it on any of the knobs or all of the knobs at once. The superdelay has 2 options: delay mix or feedback...not both at the same time though.
Another cool pedal is the new digitech time bender. It gives the option to use the exp to mix between 2 types of delays.
I'm sure there are others on the market but these are the ones that I am familiar with.
-John
What you envisage is entirely possible except the whys and wherefores are a little different 'cause of the way delay pedals work in make your own pedals world. The delay chip works by delaying, or holding back, the signal that comes in due to the speed, or timed space, and then only sends out one repeat. This means that the input level, output level and feedback control how repeats work. The feedback control allows a connection between iput and output and allows the single signal to repeat 'cause it goes back in.
So one rocker choosing number of repeats could be tricky as it kinda covers both output level and feedback.
In real operation if the feedback is set high, or low resistance, the repeats build up very quickly and you've got to jump on the feedback and turn it down before things get silly and it just starts howling. This isn't to say that such thing as defining number of repeats can't be done only that it leads into other ways of controlling the three resistances, pots, input, output and feedback, so that what one wants is acheived without having four hands and three feet.
I'd suggest you go ahead and make either of the pedals with the proviso that the AD3208 is analog and requires a whole bunch more than playing with the digital pt2399 chip which makes the building of delays a doodle. Get your head round the PT2399 and make a few delays then once you realise how they actually work you'll know exactly what they can do for you.
Echobase and clari(not) are just two delays that go a bit beyond what we can exspect to get from the PT2399, given we learned about delays from the Boss DD range.