Well, thanks to a little bit of help on here and over at offsetguitars, I finished my newest pedal tonight:
(http://farm3.static.flickr.com/2452/3772261307_20d424ff28_b.jpg)
(http://farm3.static.flickr.com/2514/3772262913_8699e4a8dd_b.jpg)
(http://farm4.static.flickr.com/3425/3772265703_cd44051741_b.jpg)
(http://farm4.static.flickr.com/3496/3772267893_2014bb5269_b.jpg)
It's my Feedback Looper/FX Oscillator. Built using my own schematic. I tried the Beavis Audio Research one, plus another, and didn't get on with them, so I started from scratch and designed & built this.
It's not so much a 'bypass looper' as the guitar always goes through the FX pedals in the loop, the switch on the box controlls the signal feedback into the pedal...the pedal you have in the loops needs to be switched on or off by its own switch. This is perfect for delays as you can switch the delay on and bring your feedback in as you want to, like most other loopers BUT, the big difference with my design is that when you switch off the feedback line, it doesnt just cut off the chaos abruptly, it feeds the delay (or whatever effect) the last little bit and thus dies off naturally back into the standard effect!!
I also added in an Expression input so you can set the maximum feedback level on the dial then draw it in or out with an expression pedal.
Ill try & get a demo up at some point so you can hear it, it sounds real good, and the natural tail-off of the feedback is blowing my mind!
Wow!
Any chance of an inside / schematic shot?
Can't wait to hear this...
Quote from: newfish on July 30, 2009, 05:05:44 PM
Wow!
Any chance of an inside / schematic shot?
Can't wait to hear this...
Im had it posted before in another thread for an hour or two but Ive taken it down. It sounds silly but, it works SO well, I'm tempted to market it somehow (no idea how yet hahah, but just in case)
Im gonna try & get a demo up tomorrow or next monday as my gf won tickets to a rock festival this weekend ;D
Fair play.
It's your blood, sweat and flux that have gone into this box.
Good luck with this. Enjoy the festival.
...sound clips or it didn't happen though...
Ya'll dont need a schem for this, its just a passive feedback looper.
i love, LOVE that knob.
i pulled some of those knobs off of an old PA head fromt he 60's/70's. they rock and they were free ;D
Yeh, I have a little stash of these knobs, they're only good for 1-knob FX (or REALLY big ones lol)
You know what, ****-it, I can't be bothered to do anything with the schematic, you can have it:
(http://farm4.static.flickr.com/3592/3775341040_25d6e90ca8_o.jpg)
Spread the love....
** Funnily enough, it's quite dependant on what FX you put into it. My BBE Two-Timer works ace with it, yet my Malekko 600D does absolutely nothing with it!
did you wire your expression jack: switch to jack/jack to pot with a TRS jack? Just for kicks, you should try a peep(devi evers photo lens expression) in the exp jack...i'm sure it would be madness with this setup!
Good job! But the pot being always in your signal path is'nt sucking your level (or tone) a bit? With a 3PDT as on Beavis, you can bypass the whole thing...no passive ''sawcker'' in the signal path. Am i wrong?
Dan
Quote from: The French connection on July 31, 2009, 11:57:04 AM
Good job! But the pot being always in your signal path is'nt sucking your level (or tone) a bit? With a 3PDT as on Beavis, you can bypass the whole thing...no passive ''sawcker'' in the signal path. Am i wrong?
Dan
Not that I can tell, when 'off' the pot isn't in the circuit
Really! If i follow the signal from the input through the blue wire to lug 2 of the pot and to the switch, i've got the feeling it is always there. Simple check, when off turn the pot and see what happen. I've got the feeling i'm wrong...please someone tell me i'm crosseyed today. :P
Nice looper anyway!
Cheers!
Dan
Quote from: The French connection on July 31, 2009, 12:48:15 PM
Really! If i follow the signal from the input through the blue wire to lug 2 of the pot and to the switch, i've got the feeling it is always there. Simple check, when off turn the pot and see what happen. I've got the feeling i'm wrong...please someone tell me i'm crosseyed today. :P
Nice looper anyway!
Cheers!
Dan
The blue wire is travelling
from the pot
TO the 'SEND' jack, the switch only severs the feed
TO the pot and just sends it straight to the 'OUT' jack. It's a really simple schematic but works really really well.
You're following the blue wire the wrong way
The whole pedal works as if it was a switchable pot in the existing pedal, not as a true bypass seperate
seems like a waste of a dc jack to power a single led.
Quote from: thereverend on July 31, 2009, 01:52:21 PM
seems like a waste of a dc jack to power a single led.
+1
I understand the points you all are making, but just give the guy a break! It's a cool box no matter what we say. Nice work man! ;)
Looks nice. I have come to like black with gold or silver hand lettering these days.
Quote from: johnnysomersett on July 31, 2009, 01:22:16 PM
You're following the blue wire the wrong way
That must be that! :icon_wink: Good job! I dig the mate finish.
Quote from: thereverend on July 31, 2009, 01:52:21 PM
seems like a waste of a dc jack to power a single led.
At least it's green compare to battery! :P
Dan
Quote from: thereverend on July 31, 2009, 01:52:21 PM
seems like a waste of a dc jack to power a single led.
That depends. I, for one, don't want
any batteries on my pedalboard. Consistency is a key word. Other people don't mind, though. One jack is a small price to pay to not have to worry about batteries.
Nice box, by the way. The "tails" are a great feature :). One tip: Just connect the return jack and out jack to eachother, and run
one wire from there to the middle lug of the switch.
Quote from: frokost on July 31, 2009, 03:40:28 PM
One tip: Just connect the return jack and out jack to eachother, and run one wire from there to the middle lug of the switch.
But then where would you plug in the amp? ;)
Errr... to the out jack?
Sod the 'waste' of a DC jack...batteries are bad for the environment.
There ma be a way to streamline it even more but I think the 7(?) wires are simple enough! lol
looks simple and effective. why is it called an oscillator?
Quote from: johnnysomersett on July 31, 2009, 04:21:51 PM
Sod the 'waste' of a DC jack...batteries are bad for the environment.
There ma be a way to streamline it even more but I think the 7(?) wires are simple enough! lol
yeah they are. but so is the stuff solder is made of. i'm more concerned about the practicability of wasting a dc connection on something that can be powered easily by a 9v; a 9v that would last for quite a while since the only thing drawing power from it is an led.
Batteries are still disposable, unless you get rechargeables. But even those add at least one additional energy conversion, which makes rechargeables, in the long run, still worse for the environment than an adapter. Even if you figure the higher environmental cost of materials, extra connections, and shipping for each additional part, in the long run it still wins over batteries. Picture the trash heap comparison after 1000 years of use: on one side, a mountain of batteries, on the other, a DC jack and a couple pounds of carbon. :icon_eek:
You could of course make the counter-argument about the useful life of the effect, how many batteries would have been used, and how that weighs against the environmental cost of the adapter and the extra hole drilled... but it is possible to take things too far. If you're still reading this, I'm sure you'll agree!
Hello,
I know it's an old topic but I'd like to know somethig:
Where's connected the expression jack in the layout?
I don't understand...
Can anybody help me?
Quote from: lama00 on June 15, 2010, 06:45:37 AM
Hello,
I know it's an old topic but I'd like to know somethig:
Where's connected the expression jack in the layout?
I don't understand...
Can anybody help me?
I would also love to know (even though this thread is old)...
There is a Nose feedback looper for sale on Reverb that looks like it uses this exact circuit. So did the OP get off his butt or was it independent development. I've been wondering if I could only use an expression pedal and just leave the pot out of it. Guess I'll have to give it a try. Thanks