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Forum: Kits (obsolete!)
 Topic: What's this thread about?
What's this thread about? [message #49] Wed, 11 December 2002 03:55
dann  is currently offline dann
Messages: 772
Registered: December 2002
Location: Austin TX
Senior Member
This is for discussion of the 3ms kits: help with building them, finding parts, doing mods, pictures and soundclips, stories....

Please see the commonsound kits page:
http://www.commonsound.org/kits.html
 Topic: Swash- LFO, Gate Fine Tune, Blend, and/or Low Power?
icon5.gif  Swash- LFO, Gate Fine Tune, Blend, and/or Low Power? [message #108] Tue, 04 February 2003 13:08
BobG  is currently offline BobG
Messages: 6
Registered: February 2003
Junior Member
Hi. I received my Noise Swash Board (thanks Dann) and I'm putting it together. With the case and knobs I'm using I really only have room for two of the following LFO, Gate Fine Tune, Blend, or Low Power. I'm wondering what would be best. I don't see myself needing the Blend mod. I havent quite figured out what the LFO is effecting. I'm assumeing the Swash setting, is this correct? Aslo how crucial is the Gate Fine Tune? If I axed that and the blend I'd be ok. Any ideas? Thanks! Smile

Robert
 Topic: tremulus op-amps-- preliminary findings
icon1.gif  tremulus op-amps-- preliminary findings [message #126] Wed, 12 February 2003 14:37
doug  is currently offline doug
Messages: 177
Registered: January 2003
Location: Richmond, VA
Senior Member
I was fooling around with my orange Tremulus last night, swapping out the LFO cap, subbing different values, trying to eliminate the thumping that occurs with certain adapters at certain settings, and I noticed that I had another type of TLO72 lying on my workbench. The orange Tremulus was running on a TLO72ACN; and the one sitting on the workbench was a TLO72IN. I subbed that for that for what was already in there, and found that it-- the "IN"-- was a wee bit quieter in the thumping respect than the "ACN".

HOWEVER, I haven't been able to compare any one batch of IN's with ACN's yet, so it may just be a quirk of one or both of those particular samples.
 Topic: Triwave trouble shooting
Triwave trouble shooting [message #158] Wed, 26 February 2003 13:53
M  is currently offline M
Messages: 4
Registered: February 2003
Location: SF
Junior Member
I have a triwave that is mostly working. I have a problem with the red LFO. When I first plug it in all the LFOs seem to be working but after a short while the red one stops. The LED has a dim glow and it doesn't seem to effect either of the VCOs.

This is a Triwave II the only mod I added was the wave shape for the LFO.

I'm kind of a novice but have and oscilloscope and multimeter. IF any one can point me in the right direction to trouble shoot this problem that would be great.

[Updated on: Wed, 26 February 2003 13:56]

 Topic: phaseur ?
phaseur ? [message #178] Sat, 08 March 2003 18:31
autopilot  is currently offline autopilot
Messages: 42
Registered: February 2003
Member

i want to make a stock phaseur wich, is the correct value for the 100k and 25k trimpots. i know i have to tweak it, but i want to make the standard phaseur fleur.
 Topic: envelope controlled trem speed?
envelope controlled trem speed? [message #186] Wed, 12 March 2003 12:36
crazybilly  is currently offline crazybilly
Messages: 8
Registered: February 2003
Junior Member
ok, in my mind, a great mod for the tremulus would be to add a switch that would switch the speed from being controlled by the standard pots, to a follower envelope that slowed the speed as the volume of the signal dropped. Anybody done anything like this? Any thoughts on how? Dann mentioned to me in an email to use the envelope from the atoner...but it's looking like part of that circuit is a quarter of one of the chips....anybody got any good ideas of a simple way to add one to a tremulus lune?


Peaces, crazybilly
 Topic: Clicking sound in my tremulus
Clicking sound in my tremulus [message #226] Thu, 10 April 2003 22:30
nuklhed  is currently offline nuklhed
Messages: 40
Registered: February 2003
Location: Cincinnati
Member

Hi all,
I have my Tremulus rocking but at some settings I get a loud continuos clicking sound but it doesn't click in time with the LED it is a random click. Any ideas??
Thanks
Nuklhed
 Topic: Triwave Waveshapers
Triwave Waveshapers [message #238] Wed, 23 April 2003 08:57
keninverse
Messages: 3
Registered: January 2003
Location: houston
Junior Member

Wondering if anyone can help...I built a triwave and the waveshapers don't seem to be doing anything (it doesn't turn the LFOs from sqare to sine). Also the rise/falling pots are acting more as spacing rather than falling and rising edges. I suppose this goes back to the whole waveshaper problem b/c how can I get these variable edges if I can't get a sine wave. All three LFOs are suffering from this same problem. Hmmm...the only thing I can think of is maybe something wrong with the waveshaper pot. Maybe I should just check the continuity of some of the wires leading to these. Any thoughts, suggestions?

ken
 Topic: Any builders in SF?
Any builders in SF? [message #292] Sun, 08 June 2003 02:18
M  is currently offline M
Messages: 4
Registered: February 2003
Location: SF
Junior Member
Just curious if there's anyone else in SF building commonsound pedals?
 Topic: Any builders in Richmond, VA???
Any builders in Richmond, VA??? [message #293] Sun, 08 June 2003 10:00
doug  is currently offline doug
Messages: 177
Registered: January 2003
Location: Richmond, VA
Senior Member
Just curious.
 Topic: Atoner SweetSpot (simplified)
Atoner SweetSpot (simplified) [message #363] Mon, 21 July 2003 21:36
80k_  is currently offline 80k_
Messages: 71
Registered: May 2003
Member
Are there any online guidelines for building a simplified Atoner? (like the Sweet Spot)?

That looks very cool!

Thanks! Smile
 Topic: fuzz jade #2
fuzz jade #2 [message #367] Sat, 26 July 2003 00:23
blackbeard  is currently offline blackbeard
Messages: 9
Registered: July 2003
Junior Member
Ok I have everything wired up but I was reading an earlier post about which pots to wire to which leads and according to dann:
mud is 1k and the rest 100k
but according to the fuzz jade scematic: http://www.commonsound.com/fuzz/schematic.gif
the fuzz is 1k and the rest 100k so should I switch them? Right now I'm not getting the pedal to work and I have it as fuzz 1k.

P.s. does anyone who makes the masonite boards know what the two extra holes are for and are they important to getting the pedal to work?

Thanks everyone for the help!
 Topic: fuzz jade #3
fuzz jade #3 [message #368] Sat, 26 July 2003 23:57
blackbeard  is currently offline blackbeard
Messages: 9
Registered: July 2003
Junior Member
Ok i have gotten it to make sound now through the pedal.
on bypass it sounds fine. through the curcuit it is really low volume and the sound, harsh and grainy. turning the pots does little except kill the sound all together and sometimes it pops really loud. Im out of ideas at this point. If anyone has any ideas as to what this might be please post.

[Updated on: Sat, 26 July 2003 23:58]

 Topic: rubber fetish
rubber fetish [message #384] Fri, 08 August 2003 12:38
autopilot  is currently offline autopilot
Messages: 42
Registered: February 2003
Member

i'm interested in building one, i got from a friend the componets layout and parts list, i would like to get the schematic and the pcb layout, who have it can post it here or send it to adam.romero at eudoramail.com, thanks in advance.
 Topic: tubewave??
tubewave?? [message #389] Wed, 13 August 2003 03:57
maharito  is currently offline maharito
Messages: 1
Registered: August 2003
Junior Member
would it be possible to replace any of the transistors in the triwave with vacuum tubes? i'm not very familiar with the way tubes work, so maybe this is a retarded question....
 Topic: Tremelo question?
Tremelo question? [message #419] Wed, 17 September 2003 23:17
blackbeard  is currently offline blackbeard
Messages: 9
Registered: July 2003
Junior Member
I recently got the dunlop tremelo pedal and right when I got it the power adapter wouldnt work....so for a while I was using just batteries. and now its not working at all. It just makes loud popping sounds at the speed I set the speed knob to.
This seems to be a common occurance on these pedals and I was wondering if anyone knew a fix for this or would be willing to look at it. thanks for any help.
 Topic: Simple Idea for Noise Swash Mod
Simple Idea for Noise Swash Mod [message #430] Sat, 20 September 2003 12:09
80k_  is currently offline 80k_
Messages: 71
Registered: May 2003
Member
the Swash responds real well to guitar volume knobs. it'd be cool to have an extra input volume knob on the Noise Swash that can be switched in and out by a stompswitch.

just requires a pot and a DPDT stompswitch (or 3PDT with LED). perhaps some cap filtering too (probably not necessary)?
 Topic: 1K resistors on depth pots / Seperation
1K resistors on depth pots / Seperation [message #434] Sun, 21 September 2003 09:10
nuklhed  is currently offline nuklhed
Messages: 40
Registered: February 2003
Location: Cincinnati
Member

Hi all,
what is the reason for putting the 1K resistors on the board for the depth pots of the Tremulus lune??

Also, I have dual LFO's and I don't seem to have enough seperation between the 2 pulses, what can be done to enhance this?? How can I deepen the pulse, mkae it more of an on/off type of sound??

Thanks
 Topic: Good reference site, beginners and experts
Good reference site, beginners and experts [message #475] Wed, 08 October 2003 12:57
dann  is currently offline dann
Messages: 772
Registered: December 2002
Location: Austin TX
Senior Member
This has lots of info on components basics (resistors, capacitors..) as well as some links to more detailed things like winding your own coils, piezoelectronics...

Lots of links!
http://www.epanorama.net/links/componentinfo.html
 Topic: UK building
UK building [message #497] Wed, 22 October 2003 10:58
Johnny  is currently offline Johnny
Messages: 2
Registered: October 2003
Location: Nottingham, Untied Kingdo...
Junior Member
I want to have a go at building something...

Is anyone here from the UK? Rather than order stuff from the States, I'd prefer to find equivalents to Mouser stock in the UK - and could use a little help!

Are there any pods here, or in Europe?

 Topic: Triwave - Buffered Input - Vol vs. Blend
Triwave - Buffered Input - Vol vs. Blend [message #516] Sat, 25 October 2003 13:55
thedug  is currently offline thedug
Messages: 31
Registered: October 2003
Location: Austin, TX
Member

Are there any caveats with the vol. or the blend? Any reason to go with one or the other?

d./
 Topic: Noise Swash - Mods
Noise Swash - Mods [message #528] Wed, 29 October 2003 11:59
thedug2  is currently offline thedug2
Messages: 5
Registered: October 2003
Junior Member
What do each of the mods do?

d./
 Topic: stomp switches
stomp switches [message #529] Wed, 29 October 2003 12:00
doug  is currently offline doug
Messages: 177
Registered: January 2003
Location: Richmond, VA
Senior Member
Does anyone notice a difference in sound quality (as in a loud popping noise when an effect is turned on or off) among MCM, Carling and those blue 3PDTs that Small Bear carries?
 Topic: Southeast Builders?
icon10.gif  Southeast Builders? [message #678] Mon, 16 February 2004 01:13
Echorec  is currently offline Echorec
Messages: 1
Registered: February 2004
Location: Tennessee
Junior Member

Hi, I'm in Tennessee and looking for someone in a neighboring state to help me get started in pedal-building. If anyone can help or knows someone who can, it'd be very much appreciated.
 Topic: Atoner with tonesweep mod... any ideas?
Atoner with tonesweep mod... any ideas? [message #703] Mon, 22 March 2004 14:15
6079smith  is currently offline 6079smith
Messages: 1
Registered: March 2004
Location: Aalborg, Denmark
Junior Member
I've just put an atoner together, which seems to work fine. I've put a tonesweep mod (half a triwave, I suppose) on the same board, which seems to work fine in itself.
Problem is, as soon as the wire from the TS volume pot to the 4151 is connected, the atoner stops, well, atoning. Basically, without the wire to pin 6 to 4151 the tonesweep sounds as it should (I've built a triwave so...) through the atoner, and a guitar into the atoner input works fine. But no way of controlling the tonesweep level. It's loud.
With the wire connected, it's as if all the power has been drained from the atoner. The guitar responds by really hitting it and it just sounds like a poor fuzz, no response from the pots. The tonesweep sounds like half a triwave, and not much else. All or nothing, I guess. I've tried all the combinations of wiring the volume pot, everything else on the circuit seems to be fine. A psu with a few hundred more milliamps? Only thing I can think of. Unless anyone else has a better idea?
Oh yes, aside from my long-winded moaning, it really is a fantastic site you have, it's nice to see people sharing knowledge rather than selling it. Keep up the good work.
 Topic: Aditional Information.
icon1.gif  Aditional Information. [message #758] Mon, 28 June 2004 14:16
chiringuito_overdrive  is currently offline chiringuito_overdrive
Messages: 4
Registered: June 2004
Location: spain
Junior Member
Just decided to build the tremulus lune. Since I live in Europe Ive decided to source the parts localy ( to save shipping costs and time ). So I've been looking thru the forums to see if theres anything I need to know that doesnt appear in the schematics. The only thing I can see is that you need to tape the rect LED to the photocell.

So my question: Is there anything else I need to know ? Rolling Eyes

Cheers !
Forum: FAQ
 Topic: [3ms] Extra LFO mods on Tremulus Lune, Stereo Panneur, and Phaseur Fleur
[3ms] Extra LFO mods on Tremulus Lune, Stereo Panneur, and Phaseur Fleur [message #48] Wed, 11 December 2002 03:33
dann  is currently offline dann
Messages: 772
Registered: December 2002
Location: Austin TX
Senior Member
Q: What does the extra LFO mod sound like on the tremulus lune?
Q: What's the difference between the LFO to add and the LFO to modulate mods for the tremulus (or panneur, or phaseur)?
Q: If I get the extra LFO mod, can I turn it off?

A: The extra LFO comes in two varieties: Adding to the main LFO, and modulating the main LFO.
The first way (add) sounds like two tremulus lunes in series. That is, you can control the speed and amount of effect of each independantly. You can turn either LFO off (the main, or the extra) by turning its depth down. This can sound chaotic or almost random if the speeds are set similarly. Or it can sound like a warble is being tremoloed up and down slowly, if you set one LFO fast and the other slow... or...

The second way (modulating) sounds like a standard tremulus lune with someone turning the speed knob up and down and up and down at a steady (rhythmic) rate. This steady rate is set by the speed knob of the extra LFO. The amount that the imaginary person is turning the main LFO speed knob is set by the extra LFO's depth knob. So it sounds like this:
.....ooOO00OOoo......oO0Oo...oOo..O.O.O..oOo...oOOo.....ooOO oo.......
(if you imagine the ... are quiets and the OOOOO are louds): the effect gets faster and faster, and then slower and slower, then faster and faster, etc..

[Updated on: Wed, 11 December 2002 03:34]

 Topic: What's the sawtooth (ramp-up) switch [tremulus, panneur, phaseur]
What's the sawtooth (ramp-up) switch [tremulus, panneur, phaseur] [message #189] Mon, 17 March 2003 12:22
dann  is currently offline dann
Messages: 772
Registered: December 2002
Location: Austin TX
Senior Member
The sawtooth switch changes the LFO from a triangle wave into a sawtooth wave.

what does this sound like?

On the phaseur, normally the phasing sound fades up and fades down, fades up, fades down, etc.. at whatever speed you set it. When you flip the sawtooth switch it fades up, then cuts immediately down to the lowest point, fades up, cuts down, fades up, etc...

The tremulus lune and panneur act similarly with the sawtooth switch, except these pedals also have a "smoothness" control which lets you blend between a square and a triangle wave. With the sawtooth switch enabled, the smoothness control now blends between a pulse (variable width) wave and a sawtooth wave. Pretty cool.
 Topic: [Noise swash] What does each knob do?
[Noise swash] What does each knob do? [message #224] Sun, 06 April 2003 15:03
dann  is currently offline dann
Messages: 772
Registered: December 2002
Location: Austin TX
Senior Member
This is a hard question... all the controls inter-relate, and changing one control will change how other controls respond.
But loosely:

[B]Pre-amp stage[B]
-Pregain is the gain of the pre-amp stage. It goes from high-gain to ultra-high gain.

Swash stage.
(This stage is where most of the noise comes from.)
-Swash creates positive feedback/oscillation by running the chip in a way it wasn't designed. see the schematic for details..
-Noisegate is set up like a traditional noisegate, but in practice it's just noise...
-Noisegate fine tune: is a control in series with Noisegate, and lets you hone in on a sweetspot when Noisegate is at 7:00-->9:00. At other settings, NGFT won't appear to do very much. (well.. usually)
-Preclip: this turns on diode clipping over the swash stage. Again, it's tightly related to other controls, so just flip it and listen to what happens..

Tone stage
(also known as EQ)
-Bass: controls the low end.
-Treble: controls the high end.
Keep in mind that other controls might generate/shift noise in such a way that Bass or Treble will do other things besides EQ

Post-amp stage
-Postgain: controls the gain of the post-amp stage. Goes from high-gain to ultra-high gain
-Postclip: like preclip, but on the post-amp stage.
-Volume: This is actually the gain control of a traditional gain stage.

System-wide controls
Self-osc: Feeds the output back to the input. When it's clicked off, there's no feedback and the unit should be less noisy. As you turn it up, you get more positive feedback, which means more potential for crazy sounds.
Low power: (mod) Reduces the voltage available to the swash. This can do some crazy sounds... turn it all the way to ge the pedal to function as "normal" as possible. If you turn it fast, you might need to wait a second before the circuit stabilizes (unless you have the trouble/tame switch set to "tame")
LFO speed,depth,on/off (mod): speed sets the speed of the LFO (duh), and depth controls how much it effects the sound. On/off is obvious. The LFO signal is injected into the swash at a certain point between the Swash stage and the Tone stage. This just happens to make some pretty wild sounds...
Trouble/tame switch (mod): this switch is part of the "silent true bypass" mod. With the mod, all power is killed to the swash when it's in bypass mode. Without this mod, the swash is still true-bypassed, but the circuit stays alive and sometimes will generate radio-frequency noise that your cables/pickups will pickup. One problem is that when we kill power to the swash, it takes it a few seconds to charge up when you turn it back on. This is where the trouble/tame switch comes in...
"Trouble" mode is the standard swash. "Tame" mode changes one of the capacitors to give the swash the ability to turn on quickly after it's been shut down.

that's all of the standard ones! have fun!
 Topic: Shiny aluminum knobs
Shiny aluminum knobs [message #628] Sat, 17 January 2004 17:04
dann  is currently offline dann
Messages: 772
Registered: December 2002
Location: Austin TX
Senior Member
Question: Where'd you get those shiny aluminum (silver) knobs?

Answer: mouser.com
Try part# 45KN030 or browse their on-line catalog.
Eagle makes several different kinds.
 Topic: Tweaking the Mud (duo/fuzz)
Tweaking the Mud (duo/fuzz) [message #731] Tue, 25 May 2004 12:57
dann  is currently offline dann
Messages: 772
Registered: December 2002
Location: Austin TX
Senior Member
DUO and FUZZ:

If you hear the volume drop substantially when tone is turned down, or when fuzz is turned down... or if it crackles too much..
or if it wont make hardly any sound unless you play LOUD into the fuzz/duo... then mud needs to be tweaked.

-First, if you have a fuzz, replace the 4k7 (that connects to the mud pot) with a 5k trim pot

-use a powersupply or a new battery

-Turn mud all the way up (clockwise--minumum resistance between the two wires).

-if you have a mulitmeter or scope, measure the DC voltage at the junction of the 2N3904 transistor and the trim pot (its the collector of the 2N3904).

-Adjust the trim pot until you get a voltage approx. 3 to 4 volts.
Technically, 4.5V will be the most balanced, but a little sag sounds nice. Use your ears to find a good sound.

-Now turn mud all the way up, slowly, and make sure it sounds good over its whole range. Re-adjust the trim pot if it gets quieter and then louder and then quieter.
Put a resistor (try 47k, then 22k, then 10k) in parallel with the
mud pot if the sound disappears when mud is all the way up.
For the duo, try it with both red and green channels, and with various positions of the tone and sustain/fuzz knobs...


 Topic: Can I build and sell 4ms' devices?
Can I build and sell 4ms' devices? [message #854] Thu, 30 September 2004 17:25
dann  is currently offline dann
Messages: 772
Registered: December 2002
Location: Austin TX
Senior Member
In short, yes. But there's a new license that you must follow.

The full license is here (its not very legalese, don't worry...)
http://commonsound.com/4mslicense.html

In short, you can make and sell up to 5 units in any 12-month period. Each unit needs to say 'commonsound.com" on it. Each time you sell one, you have to let us (4ms Pedals) know. When you sell your 6th pedal, you need to enter into a contract with us (we'll probably just ask for a percentage). Read the whole license for the real deal...

We hope this will make it easier for people to make and sell the pedals as a small-time operation, but also protect ourselves if someone want to make it a big operation.

Your feedback is very much appreciated...
 Topic: Symmetry and ramp-up mods
Symmetry and ramp-up mods [message #1175] Wed, 24 August 2005 12:12
dann  is currently offline dann
Messages: 772
Registered: December 2002
Location: Austin TX
Senior Member
Q: What do the symmetry and ramp-up mods do? Can I have them both?

Symmetry mod (tremulus): http://commonsound.org/tremulus/symmetry.pdf

Ramp-up mod (tremulus):
http://commonsound.org/tremulus/tremmods.pdf


A: These mods work with an LFO. Briefly, an LFO is the thing in the pedal that sweeps up and down at a regular rate. We're going to assume we're using a triangle LFO for these examples. Normally the LFO spends equal time going up as going down:
/\/\/\/\/\


With the symmetry knob set to 0%, the LFO will sweep up slowly and then chop down, slow up, fast down, etc. This makes a ramp-up sawtooth waveshape.
/|/|/|/|


With symmetry set at 100%, the LFO will chop quickly up and then slowly sweep down, fast up, slow down, etc.. This makes a ramp-down sawtooth waveshape.
|\|\|\|\


With symmetry set at 50%, the LFO is normal: it sweeps up and down equally.
/\/\/\/\/\/\/\


One thing to note is that the average level (technically called the DC offset) moves up as you turn the knob more towards 100%, and moves down towards 0%. On the Phaseur, you can adjust the Height control, or on the Tremulus you can adjust the Gain control to keep the same average effect.

To get around the "shifting average level effect", there's the ramp-up sawtooth switch. On the tremulus, the ramp-up mod switches the LFO to /|/|/| mode, and also switches a 220k in/out of circuit. This resistor adjusts the overall level of the LFO, so that the average level stays about the same...

A similar trick could be done for a ramp-down switch, or even a DP3T switch could be used for ramp-up/normal/ramp-down switch. Or a dual-pot could possibly be used for a symmetry knob, using one half for the symmetry control, and the other half to (somehow) compensate for the shifting average level.

Now, you may be wondering what happens when we're using a square-wave LFO (e.g. the "smoothness" or "waveshape" control is set to square). What we get at Symmetry 0% (ramp-up) is a low level that blips up:
___|___|___|___|


With symmetry at 100% we get a high level with downward blips:
___ ___ ___ ___
   |   |   |   |


...and of course, there's all kinds of interesting waveshapes at symmetry 25%, waveshape 60%, etc...

[Updated on: Wed, 24 August 2005 12:18]

 Topic: Basic electronics info
Basic electronics info [message #1629] Fri, 08 June 2007 09:57
dann  is currently offline dann
Messages: 772
Registered: December 2002
Location: Austin TX
Senior Member
Resistor color code chart:
http://www.leonaudio.com.au/res-code.gif


Reading capacitor values:
(scroll to the bottom)
http://www.play-hookey.com/dc_theory/capacitor_values.html


How to read a schematic:
http://arts.ucsc.edu/EMS/Music/tech_background/schematics/Re adSchem.html


Soldering basics:
http://www.instructables.com/id/ETY40T584KEWP873CF/
http://www.aaroncake.net/electronics/solder.htm
 Topic: COMMON PROBLEMS
icon3.gif  COMMON PROBLEMS [message #2166] Thu, 02 April 2009 16:00
dann  is currently offline dann
Messages: 772
Registered: December 2002
Location: Austin TX
Senior Member
Built a kit and it's not working yet?
Here's the top 10 list of common problems:

1) ICs in backwards. Duh. The dot/notch on the IC lines up with the notch drawn on the PCB.

2) Power jack wired wrong. If in doubt, use a meter and see which pin is ground and which one is power. Read the FAQ thread on power problems: http://commonsound.org/fud/index.php?t=msg&th=824

3) Input/output jacks reversed

4) Backwards electrolytic caps (the blue cylinders). Positive lead goes in the square hole, negative in the round hole. Negative is marked with a black line on the cap.

5) Wiring mashup. Keep your wire joints clean! Strip wire ends only enough to solder it to the lug

[Updated on: Sun, 12 April 2009 15:07]

 Topic: POWER PROBLEMS
POWER PROBLEMS [message #2167] Thu, 02 April 2009 16:11
dann  is currently offline dann
Messages: 772
Registered: December 2002
Location: Austin TX
Senior Member
OK, so you built your pedal. It doesn't work.

1) Read COMMON PROBLEMS sticky in the FAQ forum:
http://commonsound.org/fud/index.php?t=msg&goto=2166

2) Now get out your meter. Print out the "TWEAKING POWER" diagram here: http://commonsound.com/other/tweakingpower.pdf
Using the diagram, check the voltages at these places:

A) Voltage at the power jack (measure all pins).

B) Voltage on all three pins of the voltage regulator (7809 or 7805). Center pin should be 0V, one side pin should be 9V (or 5V for 7805). Both the 7805 and the 7809 come in two packages: large (TO-220) and small (TO-92). The large package has its pins numbered 1-2-3 left to right, and the small package is numbered 3-2-1

C) Voltage on the V+ pin of each IC, as follows:
4558, TL072, TL062, 4151, 555: pin 8
4024: pin 14
4049: pin 1
TL074: pin 4

D) Voltage on the ground pin of each IC, as follows:
4558, TL072, TL062, 4151: pin 4
555: pin 1
4024: pin 7
4049: pin 8
TL074: pin 11

Now post that data to the forum!

[Updated on: Sun, 12 April 2009 15:08]

Forum: General discussion
 Topic: What's this forum about?
icon2.gif  What's this forum about? [message #1] Sat, 30 November 2002 03:07
commonsound  is currently offline commonsound
Messages: 2
Registered: November 2002
Junior Member
Administrator
This is for general questions and discussion about 3ms Pedals, prophecysound sytems, and Troubled Variance.

Anyone that emails common@commonsound.com will get their message auto-posted to this forum. For now, check this forum to see your replies....

[Updated on: Tue, 03 December 2002 00:33]

 Topic: o00o0oo0o0o00oo0o0
o00o0oo0o0o00oo0o0 [message #50] Sat, 14 December 2002 02:00
anybody
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`/ <> !
 Topic: a pedal i sent in
a pedal i sent in [message #177] Fri, 07 March 2003 00:40
anybody
hi, just found the forum. i sent in a fuzz jade a while back and was wondering if it is ready? i should probably email about it.
 Topic: What do I need to power a Black Sheep Fuzz?
What do I need to power a Black Sheep Fuzz? [message #244] Wed, 07 May 2003 16:48
anybody
Can I use a Boss style adapter or is there something else that would be better.

Thanks

Curt

e-mail: agentcooper2001@aol.com
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