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Univox U 250 Uni-fuzz question
Posted: Sat Jul 13, 2013 7:06 pm
by JT23
Hi, I scored me a Univox U 250 Uni-fuzz (aka Sam Ash Fuzzola). See
http://www.effectsdatabase.com/model/univox/unifuzzMine is the grey version. It has an on/ off switch, but also a slot for "cancel." As far as I've gathered, it originally came with a small little side pedal that went in the "cancel" slot & acted kinda like a kill switch.
If anyone has further info, please post. I can't find anything anywhere & the user manual is just 1 pg.
If anyone has the old side pedal that went into the "cancel" slot, PM me as I'd love to have all original parts.
Finally, if anyone knows what type of pedal can work in the "cancel" slot, please post, and PM me if you have one to sell.
Thanks everyone! I really dig this pedal & it always kinda gets lost in all the other Superfuzz chatter...
Re: Univox U 250 Uni-fuzz question
Posted: Sat Jul 13, 2013 9:56 pm
by Jero
It'd be really easy to make one.
Actually, do you happen to have a pedal for effects/channels for an amp? Bet it'll work.
Re: Univox U 250 Uni-fuzz question
Posted: Sun Jul 14, 2013 2:36 am
by JT23
Could you please explain why it would be so easy & what type of pedal is needed for my specific situation? I know just in the handful of amps I've had over the years, there's been a wide array of cables for effects / channel switching (Stereo v. Mono etc.). And since the Uni-fuzz is a piece of vintage gear in great shape, I do not want to experiment on it. Thanks for your help!
Re: Univox U 250 Uni-fuzz question
Posted: Sun Jul 14, 2013 3:03 am
by Jero
Use a mono one. When you plug/unplug from the cancel jack you are opening/closing a connection. If you add a switch to the male plug of a cable, it'll make/break the same connection, but you can keep the cable plugged in. A simple spst switch would do the trick, but you could use a dpdt if you wanted an led.
If you need a diagram for building one I can draw it tomorrow.
Re: Univox U 250 Uni-fuzz question
Posted: Sun Jul 14, 2013 3:09 am
by sonidero
JT23 wrote:And since the Uni-fuzz is a piece of vintage gear in great shape, I do not want to experiment on it.
You're not going to break it with a switch... Listen to Jero, he knows things about things and stuff...

Re: Univox U 250 Uni-fuzz question
Posted: Sun Jul 14, 2013 5:06 am
by JT23
Thanks, everyone. I'm no gearhead. I'm more into the sounds I can create, than the mechanics. At this point, I can't make anything that I'd feel comfortable using. Can you please point me in the direction of someone who can? Thanks again!
Re: Univox U 250 Uni-fuzz question
Posted: Sun Jul 14, 2013 9:23 am
by jrmy
There's bunches of people in the DIY section who could build you one. Or check the Shark Tank, under B/S/T - they're all builders, and might be willing to take a little job like that on.
Off the top of my head, ILFers Skullservant, Officer Bukowski, Jero and McSpunckle have all done great DIY work, but there's plenty more folks to be found here who could as well.
Re: Univox U 250 Uni-fuzz question
Posted: Sun Jul 14, 2013 1:16 pm
by JT23
Oh, ok, thanks, I guess that I'm "taking bids" - PM if yr interested in the gig - for now (still holding out hope someone has that original side pedal). Then, I'll go by the references and find someone myself. Thanks again, ILFerz!
Re: Univox U 250 Uni-fuzz question
Posted: Sun Jul 14, 2013 1:25 pm
by sonidero
Just contact Jero...
See the middle jack in the pic, that's the Cancel... It's just opening/closing a connection like Jero said, any kind of foot switch would work... You can even have it made into whatever kind of enclosure you want...
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Re: Univox U 250 Uni-fuzz question
Posted: Sun Jul 14, 2013 2:49 pm
by Jero
Lots of folks already offer these, and they're about the same price that I'd charge. Probably better getting it from those other guys since they already have 'em made.
Google mono amp switch, or mono latching switch. Here's one example...
http://www.ebay.com/itm/Replacement-Foo ... 257f7f6419Best of luck finding an original though, that would be so cool!