http://seanm.ca/stomp/minblend.html
Will easily fit in a 1590A box and I probably wouldn't even use a stomp switch with this because in the unblended position of the pot, this will essentially be just a JFET buffer. You could always add a mini toggle to bypass it completely if you wanted to.
This will make a useful little tool to experiment with blending dry and effect signals together, or to allow you to use a digital effect 100% wet so your dry signal isn't being digitised.
hmm, wired it up, seemed to only act as a volume knob though
ReplyDeletethen again, i was using a 100kA instead of a 50kB
ReplyDeleteIt isn't going to work properly with a logarithmic pot. With a linear pot, the best blend would be the middle position which lets signal in from the buffer and external signal equally. A logarithmic pot has a different sweep so in the half way position the majority of the signal with be coming from one of the two sources. To get an even blend you'd be almost at the end of one of the rotations.
ReplyDeletehttp://www.geofex.com/article_folders/potsecrets/pottaper.gif
hi mate, where does input/send go? i'm guessing "send" goes to the vero "in" on the circuit you're trying to add blend to and "return" is vero "out" of the circuit, yeah?
ReplyDeleteand the "input" and "output" act as the new input/output to be wired to the 3pdt footswitch?
I have the same question as nicholas, can you please explain how to wire this up in more detail. thank you.
ReplyDeleteThe send daisy chains from the input and then the returns comes back to Blend 3. Then when you rotate the Blend pot you're blending between the dry buffered and effected signal.
Deletei just built one of these today. it works great, however it does seem to lose a tiny bit of level and some top end when it's running in the 100% dry side (fully CCW). i would assume that it's because the signal is being split (y'd) at the input, and if the effect, in my case a fuzz tone, has a an output level quite a bit higher than the dry signal, the fuzz slightly leaks into the clean blend. i'm going to try the split and blend next and see if that one works a little better with my particular pedal (a lovepedal silicon fuzzmaster).
ReplyDeleteYes I think the Split and Blend would be better in most cases. That would be the one I'd go for so the send doesn't just daisy chain off the input and is actually buffered first.
DeleteCould this be made with a npn transistor? Are there any phase issues when blending with these?
ReplyDeleteCan't see why not - as it is basically just a buffer that blends two signals. You'll just need to take good care of the pinout. You'll want (from top) CEB. Or you could just insulate and twist the legs.
DeleteBuild it with a socket and you'll see if it works the same.
+m
Thanks mirosol. And just out of curiosity, what happens to the phase of the input signal after passing through the buffer?
DeleteCheers
It's a source follower and so there's no phase inversion
DeleteThanks!
DeleteCan someone please further explain the wiring of this? I'm just a bit confused as to how I could implement this into a fuzz circuit.
ReplyDeletei am interested in the same question
Deletethis
DeleteHi could I use another linear pot different from 50K?
ReplyDeleteHi Mark,
ReplyDeleteCan the blend pot be eliminated and resistors used for equal gain?
Hi Man! This is a great one, but I'm having problems with pahse issueas, you know, when the pot is at 50%-50% the overall signal is almots half of the normal signal... is there some way of fixing it? Thanks!
ReplyDeleteive been thinking of putting a blend circuit into the keeley 4 knob i finished today... but man no blend circuit has ever worked as well as the barber tone press blend. are they doing something different in there? anyone got info on that blend?
ReplyDeleteI never got this miniblender to work the way i wanted. Try this:
Deletehttp://tagboardeffects.blogspot.fi/2012/02/split-n-blend.html
+m
Threw this together quickly tonight and it's a lot of fun. I find it works best with super weird, zany effects (I had it blended a warbly chorus, wah, phaser combo that sounded like an underwater helicopter just beneath my clean signal). Struggles a bit to share the signal with fuzzes, etc., but could be a very useful little guy in the right application. Thanks!
ReplyDeleteCould I use any blend pedal inside a box with another circuit effect or I always must to construct a new box only to the blend circuit ??
ReplyDeleteWell, the idea is to add a Blend pot to a overdrive.
thank you
short answer is yes, long answer is no. as long as the effect is not based on the ross compressor (Ross compressor, Dynacomp, Keeley 4-knob comp) or an effect that puts inverts the input signal with the original signal (essentially put the input signal out of phase with the original signal). i don't think you'll have that issue with many, if any OD's though, so you're good.
DeleteI built this up and I have the same problem as several others have had - just acts as a volume pot...
ReplyDeleteJust a testimonial : I’ve built this blender, and it just work wonderfully !
ReplyDeleteAt first, I had the same problem as many: a drop in volume at 2/3rd of the blend taper course. But then I realize that I put the only potti I had, a 250K log. Change it for a 50K Lin, and it now works as a breeze. Just great.
I put it in my 3-in-one pedal for my bass (ie. Compressor, Valvecaster and phazer). The blend bypass all the chain, and I can add a bit of lows if needed by seting the sound dryer.
That little Vero realty changed my sound.
Many thanks to FX Guitar Layout team !!
Just ran into this, Interesting, except the link to the schematic is no longer functional ....
ReplyDeleteMaybe it could be remedied? Or someone could e-mail it to me if it's handy?
Or maybe I'll just have to trace it & draw it out myself.
As always, thanks for your great work!
hopefully this is what I'm looking for. I want to run three delays in parallel and then bring them back to a single signal. We'll try this on the next rainy day
ReplyDeleteHi, i'm a super noob! I build the circuit but Can someone explain me how to wire It? Send return in out 9v gnd? Thank you...
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ReplyDeleteIm having issues getting this to work with a B100k pot. It goes to the fully clean side just fine, but cuts in and out as i turn clockwise closer to the wet side. I built it in a stand alone box and am testing it on a speaker cranker overdrive, but plan on using it for a univibe type pedal. Is my pot value being wrong causing this issue? Sounds like a scatchy pot or even a cold solder joint, but ive checked my work and used deoxit and it all seems pretty clean. Is there a component on the circuit board i could swap out to make the 100k pot work? Replacing the pot might be a challenge as its already installed and i have easier access to the circuit board. Any help would be appreciated. Thanks!
I'm trying to make a pedal to blend a guitar signal from my effects chain and another signal from a roland guitar synth. I've been using a Morley blender pedal with the Input and Return as signals 1 & 2 and the output for the mixed signals. If I made this would I need to add a buffer to the Return signal as well since its not coming through the inputs buffered signal? Thanks
ReplyDeletewhat i have to do to turn the phase 180 ° so that i have a buffer that inverts the phase?
ReplyDeleteI assume it'll work on 12V too, if all the components are rated for 12V?
ReplyDeleteI'm building a Ruby Tuby amp with a send-return.
Since the amp circuit works on 12V, it would be nice if the blend would do too.
I've made 2 of these, one for a Green Russian Big Muff and one for a Rat. It worked well in both cases and has a good range on the blend knob. Perfect for bass fuzz pedals! There is a very slight loss of high end in the clean signal that you wouldn't notice when blending with a fuzz or overdrive sound.
ReplyDeleteHi, I play bass. I built this blend both separately in a box and inside a big muff. but for me it only worked as a volume and always wet sound. then I tried Split 'n' blend...same result! What am I doing wrong? Please can you help me? Sorry for my bad English
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