MAGNUS MODULUS - PROJECT - PT2399 ECHO/Chorus/Tremolo/Boost [documentation]
Well, I finally managed to complete this project, and it works great!
I'm a little uncertain about the Gain control, though - I couldn't hear any difference between full cw and full ccw at the test run yesterday evening. Anything wrong? Suggestions for how I can fix it?
Thank you Forced Fire for sharing this cool pedal design!
I'm a little uncertain about the Gain control, though - I couldn't hear any difference between full cw and full ccw at the test run yesterday evening. Anything wrong? Suggestions for how I can fix it?
Thank you Forced Fire for sharing this cool pedal design!
- DahakaNishoba
- Breadboard Brother
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- Joined: 22 Jul 2009, 08:27
- Location: Rome - Italy
Just built one using Cathexis Veroboard....
Had some tremolo first try then NOTHING.....signal is ok and the GAIN works (a lot....) I have to set it 2/10 for no boost...anyone used cathexis vero and noticed something ?
the only other thing I hear is a little POP on one of the switch
I used some 2x047 caps in parallel instead of the 1uf NP.....hope this isnt a big issue....
Had some tremolo first try then NOTHING.....signal is ok and the GAIN works (a lot....) I have to set it 2/10 for no boost...anyone used cathexis vero and noticed something ?
the only other thing I hear is a little POP on one of the switch
I used some 2x047 caps in parallel instead of the 1uf NP.....hope this isnt a big issue....
The way electronics work in a stompbox is like the way pixels move in a videogame
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Here's my "hack" to deal with enormous boost and still have decent tremolo:
I was having one 150k B pot laying around so idea was to lift up depth so I can lower gain. I've noticed that depth switch is only active about 7/10 to 10/10. And so I swapped 100k for 150k depth pot and lowered the gain (trimpot) to 2/10. (I suppose you could also lift up 100k with resistor in series)
Now my pedal is transparent and have zero boost.
I was having one 150k B pot laying around so idea was to lift up depth so I can lower gain. I've noticed that depth switch is only active about 7/10 to 10/10. And so I swapped 100k for 150k depth pot and lowered the gain (trimpot) to 2/10. (I suppose you could also lift up 100k with resistor in series)
Now my pedal is transparent and have zero boost.
Hey everybody!
I just finished this wonderful project - it works fine and sounds great. I keep confusing the controls, but thats another story.
But a have question:
The LM7805 gets VERY hot, and I'm not sure if it's a good idea to use this pedal for a long time or even on a hot stage.
Mine looks like this:
I was not able to find the smaller version.
Is this normal?!
Thanks alot!
I just finished this wonderful project - it works fine and sounds great. I keep confusing the controls, but thats another story.
But a have question:
The LM7805 gets VERY hot, and I'm not sure if it's a good idea to use this pedal for a long time or even on a hot stage.
Mine looks like this:
I was not able to find the smaller version.
Is this normal?!
Thanks alot!
- Bside2234
- Resistor Ronker
I used a 7805 and mine doesn't get hot at all.pirxpilot wrote:Hey everybody!
I just finished this wonderful project - it works fine and sounds great. I keep confusing the controls, but thats another story.
But a have question:
The LM7805 gets VERY hot, and I'm not sure if it's a good idea to use this pedal for a long time or even on a hot stage.
Mine looks like this:
I was not able to find the smaller version.
Is this normal?!
Thanks alot!
Yeah you should probably find LM78L05. And also check pinout of that LM7805. (maybe it needs to be rotated by 180° )
follow up : u should check correct pin of LM7805 " 1 " input(9V) , " 2 " ground , " 3 " output (5V)whosyourdaddy wrote:Yeah you should probably find LM78L05. And also check pinout of that LM7805. (maybe it needs to be rotated by 180° )
" 1 " Pin should left side when u see front of regulate.
my expeirence incorrect pin cos' ic hotter than normal but fix by reverse 180' pin or u see datasheet.
- lufox15
- Breadboard Brother
Hi, i'm new in this forum. and i don't understand what do the switch delay tails, if i push the the bypass switch, it's not the same??, and the tremolo or chorus effect, continue sounding if i push the delay tails switch???.ibodog2 wrote:OK, what is the "tails" switch supposed to do? Leave the delay tails on when the effect is bypassed? But, no that can't be it if I wire the board up the normal 3pdt "true bypass" way.
thanks. sorry about my words i don't speak english.
- Barcode
- Diode Debunker
"tails" is probably a misleading name. It actually turns the delay on and off, like the tremolo and modulation switches.
i just built this, and unfortunately, i have no tremolo, and barely any modulation. delay works fine???
i just built this, and unfortunately, i have no tremolo, and barely any modulation. delay works fine???
- Barcode
- Diode Debunker
nevermind, tremolo is working, but it has a loud thump with every hit, whether I'm playing or not. I also think I've either made a resistor mistake or I got some mislabelled parts, as the rate and depth knobs have a narrow usable range. anyone else find this?
- JiM
- Diode Debunker
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Tell me if i'm wrong, but i understood that the "tails" switch allows disengaging the delay while letting the last repeats fade away (hence the name). A kind of smooth end to a delayed phrase, at the price of not being true-bypass.Barcode wrote:"tails" is probably a misleading name. It actually turns the delay on and off, like the tremolo and modulation switches.
I don't know how it affects tremolo and modulation.
I only give negative feedback.
- Bside2234
- Resistor Ronker
My depth knob only works the last 1/4 of the turn and my rate knob only works on the 1/2 of the turn. I'm going to adjust their values/tapers as soon as I get a chance to make them work better. I eliminated the tremolo on mine because I didn't like having to turn the gain/boost up so high to make it work but I didn't have any thumping when I had it on there.
- lufox15
- Breadboard Brother
so, if i push the "tails" off, the tremolo it's on?, or i don't have tremolo, mod and delay with the "tails" off????JiM wrote:Tell me if i'm wrong, but i understood that the "tails" switch allows disengaging the delay while letting the last repeats fade away (hence the name). A kind of smooth end to a delayed phrase, at the price of not being true-bypass.Barcode wrote:"tails" is probably a misleading name. It actually turns the delay on and off, like the tremolo and modulation switches.
I don't know how it affects tremolo and modulation.
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hi , i hace one cuestion for you man , were you find these boxes ?, i can´t find them , im find the pots the ic ,the compnents , all , but the boxes i can´t find....... can you help me?....... thankslochy wrote:yea I get the pop when I switch on tails. normally I just leave the tails on and just switch it on and off.
- rocklander
- Old Solderhand
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http://www.effectsconnection.com/oscomm ... 859c2c4ac8maikyguitars wrote: hi , i hace one cuestion for you man , were you find these boxes ?, i can´t find them , im find the pots the ic ,the compnents , all , but the boxes i can´t find....... can you help me?....... thanks
they have a bunch of different sizes, some large enough for the MM project easily
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Anybody knows where to get these knobs (with color!)? They look great and look perfect for a "knobby" project!maikyguitars wrote:
Thanks.
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