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Unread 03-16-2012, 12:11 AM   #1 (permalink)
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Moen Uni Vibe pedals

Since a mini Deja Vibe is out of the question right now and I decided to get rid of my Dunlop because it just didn't get me there, I've been trying to find something more pedal board friendly and more affordable. I did a little digging and found the Moen Shaky Jimi. I liked the clips but I kept reading that a lot of people were modding them with a bias control and it was still a space hog.

I ran across their ULITE line of effects pedals and did a little eBay searching and found the Jimi Zero vibe for $60. It's pretty much the Shaky Jimi in a smaller enclosure with a bias control built-in. I'm not saying this pedal is the be-all end-all of univibe effects but IMO it sounds as good or better than the more expensive pedals I've had before, mainly a couple of Dunlops and an old 1st gen Deja Vibe. It'll definitely put you in Hendrix/Trower territory and doesn't take up much space at all. Another plus is that it doesn't require an 18 volt adapter - I can run it off my daisy chain power supply.

I didn't know squat about Moen until this pedal, but I'm ready to check out some of their other effects. I already like this pedal better than any of the other univibe clones, and at $60 it's a steal. The red LED that pulses with the rate and depth controls is sweet, and the heavy-duty true bypass switch is just icing on the cake.





Oops. I just noticed that this isn't the exact pedal. The newer one has a Chorus/Vibe push button switch.

Here's the big dog... I dig the look. I'd like to know how they get away with having Jimi and Fender both on their box.

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That's what I like about you Alan...you got it bad. You're a tube-aholic.
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Unread 03-16-2012, 01:08 AM   #2 (permalink)
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Re: Moen Uni Vibe pedals

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That's what I like about you Alan...you got it bad. You're a tube-aholic.
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Unread 03-30-2012, 02:17 PM   #3 (permalink)
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Re: Moen Uni Vibe pedals

See what you think of this?

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Unread 09-09-2012, 09:12 PM   #4 (permalink)
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Re: Moen Uni Vibe pedals

Resurrecting this thread: RiverRat, how's it treating you--any thoughts on the pedal a few months later? I've been thinking of a univibe type pedal that won't break the bank...
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Unread 09-14-2012, 06:59 PM   #5 (permalink)
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Re: Moen Uni Vibe pedals

Sorry I missed this somehow. I still have it on my board and use it more than any of the others I have owned. I've had a Danelectro Chicken Salad univibe as well, and it's a great pedal too that's light on the wallet. It's a great sounding pedal but not very rugged. A lot of people are taking them and putting them in a new enclosure.

The Moen is the better of the two IMO. The bias control gives you some nice tonal options. My only problem with the Moen is that it badly needs a true bypass switch. You can still hear a faint ticking sound when it's off. If you have it in the front of your chain, the ticking is amplified by the other pedals.
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Unread 09-14-2012, 10:49 PM   #6 (permalink)
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Re: Moen Uni Vibe pedals

Thanks for the update. Shame about the ticking, as it's stated everywhere that it already has "true bypass." My chain is pretty basic: guitar -> wah -> fuzz -> delay. I was going to put the vibe before the delay. I can order from a site that offers 14 day returns, so there's really little risk if I detect and can't stand the ticking.
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Unread 09-15-2012, 08:12 PM   #7 (permalink)
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Re: Moen Uni Vibe pedals

The ticking isn't that bad if you're going to put the pedal after your boost/distortion pedals... You probably won't even notice it. It's a really good sounding univibe clone. I can get closer to Trower's Bridge of Sighs tone with this pedal than any of the other clones.

I haven't been inside the pedal to see what kind of switch it has. I'm thinking that if it already has a true bypass switch, maybe a capacitor on the bypass side would get rid of the noise.
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Unread 09-15-2012, 08:26 PM   #8 (permalink)
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Re: Moen Uni Vibe pedals

I did just read (like literally 2 minutes before you posted that) in the FoxRox Aquavibe manual:

"Noise - If you notice ticking noise or pulsing hum, it means the
power supply is not delivering enough current. Make sure itís
rated for at least 300ma. 500ma or higher is best. Also, make
sure youíre not daisy chaining, or sharing the power with other
effects. This could take away available current and cause noisy
interaction. Power adaptors that use digital switching (the small
ones) are often problematic in guitar rigs, and will probably act up
with Aquavibe. Stick to linear (standard) power adaptors."

And I also just read some random Harmony Central review of the Dano Chicken Salad that ticking started as the battery was weakening--that a replacement new battery solved the issue.

So it does seem power supply related...

And to your comment about a capacitor solution, I came across a thread specifically about de-ticking the unit: De-Ticking a Shaky Jimi Univibe - help please. Basically you use a capacitor and resistor to provide a momentary supply of power:

"Running a small-value resistor between the V+ line and the +power pin on the chip, in tandem with an electrolytic cap between the power pin (pin 8) and ground, does two things. First off, that electrolytic cap acts like a little teeny weeny uninterruptible power supply for the chip - assuming you treat a couple milliseconds as akin to an eternity. It stores charge that is available on demand to the chip, and clearly, if the chip is gonna suck current from anywhere, that electrolytic cap is a more efficient route than having to go through that godawful 100 ohm resistor to the power supply.

So, by virtue of the manner in which it stores a wee bit of reserve supply for the chip, and series resistor assures it will draw from the cap in a pinch, rather than the supply. That softens the immediate power needs of the op-amp stage producing the square wave, such that spikes don't show up on the power line shared with the audiop path."

...and...

"Basically, what yu need to do - rather, ALL you need to do - is locate pin 8 on the chip used for the LFO, neatly cut the trace that runs up to is, so that pin 8 is isolated from everything else but has enough copper arund it to solder to, bridge the cut you made with a 100R resistor, and run the cap from pin 8 to gnd like I assume you already did.

What you are essentially trying to do is give that chip it's own individual little "battery" that's good for a few milliseconds."
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Unread 09-15-2012, 09:09 PM   #9 (permalink)
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Re: Moen Uni Vibe pedals

Thanks. I have plenty of 9v adapters. I'll put the Moen on its own dedicated power supply and see if that gets rid of the problem.
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Unread 10-01-2012, 10:08 AM   #10 (permalink)
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Re: Moen Uni Vibe pedals

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Thanks. I have plenty of 9v adapters. I'll put the Moen on its own dedicated power supply and see if that gets rid of the problem.
Checking in to see if you had a chance to try the adapter--any luck? Thanks!
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Unread 10-10-2012, 10:07 AM   #11 (permalink)
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Re: Moen Uni Vibe pedals

No, I plan to, but I really haven't had a chance to do much with my rig. I've been selling stuff, getting more stuff ready to sell, working about 60 hours a week, and trying to fit a life in there somewhere. I refinished and rebuilt a Tele for a guy, I have a couple of tube amp projects at various points of completion. I'm planning on building a new pedalboard now that I know what I did wrong with this one, mainly with making the back row of pedals accessible and getting a good stable power supply. Maybe things will slow down when high school football is over and I can get some of these personal projects done.
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Unread 10-10-2012, 09:41 PM   #12 (permalink)
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Re: Moen Uni Vibe pedals

Wow--quite a lot on your plate! Sounds like excellent projects, though. Good luck with things!
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