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Uni-Vibe Clone From Start To Finish 2
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- Опубликовано: 8 июл 2019
- For Replacement PCB Click Here
www.ebay.com/itm/Uni-Vibe-Pri...
So here's part 2 of the Uni-Vibe clone, there is a lot to learn and go over, I think with the help of enthusiast and a little more commitment, this pedal will turn out 100% operational.
You can reach me at, Axeman6@msn.com
Absolutely great clone!
Wonderful work!
When you touched that part at 7:55 mark your intensity sounded way swirlier and throbbier. It reminded me of an even swirlier Pedal Pawn Gypsy Vibe. You got a very cool tone outta your pedal build.
Your vibe sounds REALLY AWESOME
So awesome dude!!!! Sounds SUPER close to my UV2
Congratulations on your vid! awesome awesome stuff! gonna use it, enjoy your big boys apple juice, you deserve it!
As far as I can remember, I used a high-gain low-noise BC549C NPN Small Silicon Transistor for Q1 in my Univibe build, it worked perfectly well as a substitute for the 2SC828, for the rest of the transistors I used some BC547 Silicon Small Signal Transistors, and for the LFO and Lamp Driver (Q11, Q12, and Q13) I seem to remember using some MPSA13 Darlington Pair Transistors, mind you it has been a good few years since I built my Univibe so my memory might be a little rusty, as far as I know my Univibe build is still working perfectly well.
I got it working perfectly now. thanks for the info.
What type of transformer did you use? Count me in for the UV Enclosure I'm a get 3!
Yes the sound changes when you touch the emitter
Also, as far as I can remember, I made the cover for the lamp and four LDRs using some tinplate, since tinplate is solder-able, I sealed each of the four corners of the cover with some standard 60/40 solder and my soldering station, doing so ensures that no light can escape, works great.
I should try soldering the corners, good idea. I should post a new video with the transistors. I think I used 2sc945 and what a difference at Q11 and 12. I'll post video today.
If my memory serves me right, I was originally using a 22.5V AC/1A transformer (in an external black plastic enclosure) to power my Univibe, but I found that my Univibe had a bit too much hum-noise, so I modded it to run off a 15V DC/400mA plugpack adaptor, that got rid of the hum-noise.
My uniVibe doesn't hum all the time.
The one wire that's really sensitive to noise could you not use a small shielded cable wire? Maybe that would help. Anyways cool project and build for sure.
I have a new build that's quit and sounds great. I might make a video.
You don't necessarily have to use the same 2SC, and 2N series silicon transistors as used in the original Shin Ei Univibe, BC series silicon transistors will also work perfectly well, I built myself a fully working Univibe using BC series silicon transistors.
I agree
A lot of people think that a lot of the mojo in the sound of the Univibe is in the carbon comp resistors and the 2SC and 2N series transistors that were used to build the original Univibes, but the real truth is that the reason they were used is that they were what was available back then, you should be able to build the Univibe circuit using what's currently available off-the-shelf from most electronics parts stores, and still get pretty much the same sound, provided that you've used the same component values for the resistors and caps, I seem to remember using a small 12V/60mA light globe for the lamp, the LFO and Lamp Driver circuits both run off about +22V DC, the Preamp and Phasing circuits are running at about +15V DC.
Do you remember which n transistor? I'm going to upload right now.
Pretty much all of them, the 2SC and 2N series transistors are all made from Silicon, as are the BC series transistors, from memory, 2SA series transistors are Germanium types, I think 2SB series are Germanium as well, but I could be wrong.
What was it a linear pot?
Picking up radio signals,, just use a sheilded cable. An enclosure would help. It sounds great other wise.
I rewired the transformer, Now it's quit
@@conjering yeah I knew you'ld figure it out.
12:00 this is happening because of the design of the LFO, it increases the amplitude with increasing the rate of oscillation. you can raise the amplitude with the 50k pot for lower freq. and it should pulsate provided that you've set the bias of the driver transistor.
Where does the pot go?
@@conjering it's the 50k after that darlington emitter connected the 10uF cap. I think it is the depth which is one of your controls.
Do you mean the intensity not depth and have you done this before?
@@conjering yeh, in fact I've built the LFO today and played with the circuit. Another reason could be that the amplitude is not enough to make the driver transistor swing cause there are 2 diodes across one of the 1u cap to limit it. I removed it today to fit my circuit as I needed more swing.
@@conjering as I mentioned before, the amplitude of the oscillator changes with speed. when you increase the speed the amplitude goes higher and thus your bulb is pulsating better.
The vibe and chorus are backwards on your build. Believe it or not the more radical effect labeled chorus and the vibe is just a pulse.
I'll take a look
How do you know that
Because the one you called vibe is what the chorus is supposed to sound like. Doesn't matter I suppose sounds good.
Which AMP are you using
1962 BB
Commenting because I appreciate what you're doing.
My dream is a reverse engineered sabbadius woodstock funky vibe. Any ideas about specifics to that univibe circuit in particular?
That build should have 3 trim pots, 1 for the gain, 2nd for the offset and 3rd for a phaser adjustment. everything else is the same. Just build an original one facebook.com/reel/1421258985259688
facebook.com/reel/1421258985259688
@@conjering you're doin the Lord's work
@@thomascleveland Not even close, I do it so people could enjoy their lives with music
@@conjering so, I am new to this, bear with me for a sec. These three trim pots in the woodstock version you’re talking about. For gain, offset, and phaser, which spots would those correspond to on your board?
Hi!! Nice!! What is type LDR and lamp bulb you use?? Silonex? Thanks!!!
Yes, Silonex high dark or 5540 or 7530 will sound really good. I have circuit boards and enclosures in mail right now and should be here by mid December
www.ebay.com/itm/Uni-Vibe-Printed-Circuit-Board-Replacement/264947391470?hash=item3db0185bee:g:u9QAAOSwfmFfuaHS
Ok good!!! Thanks!!
i have see silonex on smallbear site and a nice pcb board univibe on ebay, i hesitate to build my univibe... nice build to!!!😉
@@conjering ok thanks for the link!!!
Ship outside the us? Because i live in france
Mikael Edream I don’t ship To France but my friend who live in Italy does.
facebook.com/groups/560144754706186/?ref=share
Would love one of those green boards
Just type in uni-vibe circuit board and you will find it.
@@conjering yes I found it thanks,i have one more question,will the pt15 pier be the rite sized trimpot,or is it the bigger one?
I have to check for the mouser part number, I’m at work till Monday
@@killuminati3079 Mouser part number 531-PT10V-500-S
@@conjering thanks alot man,looking forward to seeing the completion of the green board,looking to order one soon.
Wow
The vibe sounds great otherwise,the 828 transistors usually only handle 50ma,I use the 2sc945's in that spot for q11 and q12,2n3904's work well too,they are spec's at 200ma,so they could handle the higher current
On Q13 I have a mpsa13 do you know how I can get more out of the speed and intensity?
@@conjering with my builds so far,the light only pulses when I reach about in between 7 and 8 o clock on the intensity,not a big deal to me,i was messing around with increasing the value of the 2.2 Meg bias resistor to like 5 megs,giving more intensity at the slow speeds.was a Lil too much for me,didn't like the overall sound.
@@conjering hope my answers helped in some way man,I'm enjoying following ur build,I also mess up traces sometimes too,I have about 3 scrapped boards acting as donors rite now😀
That’s good to know, I’ll try it with a 3meg se what happens
What do u use for Q13? I use MPSA13
Enclosure coming soon
8:31 Thats the offset bias of the darlington pair. I generally think the one transistor version is the best! Anyways... The uni power supply just sucks. But your uni vibe sounds good. Great job!
I have new boards now, with and without the offset trim pot
Can I have the name of the seller?
www.ebay.com/itm/Uni-Vibe-Printed-Circuit-Board-Replacement/264947391470?hash=item3db0185bee:g:u9QAAOSwfmFfuaHS
Tell us about your bird; he seems to have a lot to say!
MY bird ?
@@conjering Smoke detector.
@@the-bob-holly-podcast Yes