Forum Home Forum Home > Other music related lounges > Tech Talk
  New Posts New Posts RSS Feed - Home made guitar pedals
  FAQ FAQ  Forum Search   Events   Register Register  Login Login

Home made guitar pedals

 Post Reply Post Reply Page  12>
Author
Message Reverse Sort Order
Davesax1965 View Drop Down
Forum Senior Member
Forum Senior Member
Avatar

Joined: May 23 2013
Location: Macclesfield
Status: Offline
Points: 1339
Post Options Post Options   Thanks (0) Thanks(0)   Quote Davesax1965 Quote  Post ReplyReply Direct Link To This Post Topic: Home made guitar pedals
    Posted: October 20 2017 at 02:22
Looks like whole shedloads of pedals are going to be connected up (using attenuators) to my 1960's valve oscillators. 1970's Hawkwind and Cluster, here we come. ;-)


MACCLESFIELD ILLUMINATI
https://brotherhoodofthemachine.bandcamp.com/
Back to Top
Davesax1965 View Drop Down
Forum Senior Member
Forum Senior Member
Avatar

Joined: May 23 2013
Location: Macclesfield
Status: Offline
Points: 1339
Post Options Post Options   Thanks (0) Thanks(0)   Quote Davesax1965 Quote  Post ReplyReply Direct Link To This Post Posted: October 15 2017 at 10:05
Thanks !! ;-)

Well, with three audio generators and a modular synth, plus five other analogue synths, you can imagine the sonic catastrophe which should ensue. 

Regarding the "soldering microscope" - this fine beastie is currently what I use to solder bits of weird junk up. It's had a few more bits added to it and currently has a camera mount on it displaying the output to a 24 inch monitor in the garage. After a minor stroke aged 50 (blood clot moved under physio from my back to my brain) I've pretty much got to use one of these. Fine now, 99 per cent recovered, I was very lucky indeed. 


MACCLESFIELD ILLUMINATI
https://brotherhoodofthemachine.bandcamp.com/
Back to Top
Atavachron View Drop Down
Special Collaborator
Special Collaborator
Avatar
Honorary Collaborator

Joined: September 30 2006
Location: Pearland
Status: Offline
Points: 56490
Post Options Post Options   Thanks (1) Thanks(1)   Quote Atavachron Quote  Post ReplyReply Direct Link To This Post Posted: October 14 2017 at 04:30
Kick ass ~

"Too often we enjoy the comfort of opinion without the discomfort of thought."   -- John F. Kennedy
Back to Top
Davesax1965 View Drop Down
Forum Senior Member
Forum Senior Member
Avatar

Joined: May 23 2013
Location: Macclesfield
Status: Offline
Points: 1339
Post Options Post Options   Thanks (0) Thanks(0)   Quote Davesax1965 Quote  Post ReplyReply Direct Link To This Post Posted: October 14 2017 at 04:21
Minibrute arpeggio, delay and flanger. ;-)
https://soundcloud.com/brotherhoodofthemachine/brute-echo-flange
MACCLESFIELD ILLUMINATI
https://brotherhoodofthemachine.bandcamp.com/
Back to Top
Davesax1965 View Drop Down
Forum Senior Member
Forum Senior Member
Avatar

Joined: May 23 2013
Location: Macclesfield
Status: Offline
Points: 1339
Post Options Post Options   Thanks (0) Thanks(0)   Quote Davesax1965 Quote  Post ReplyReply Direct Link To This Post Posted: September 17 2017 at 09:33
All working so far ! Deep Blue delay, Vox chopper delay, MXR phaser clone and two A <> B switch boxes. On the way, another two delays and a Harmonic Energiser. 

They're all fairly simple to build, the wiring can be tricky and these particular designs mean giving them a once over with a soldering microscope to check for solder bridges is essential. Lots of components in a small space. 
MACCLESFIELD ILLUMINATI
https://brotherhoodofthemachine.bandcamp.com/
Back to Top
pitfall View Drop Down
Forum Senior Member
Forum Senior Member
Avatar

Joined: June 22 2012
Location: Essex, England
Status: Offline
Points: 108
Post Options Post Options   Thanks (0) Thanks(0)   Quote pitfall Quote  Post ReplyReply Direct Link To This Post Posted: September 05 2017 at 07:47
A lot of the techniques and tools for etching PCB's is the same as for doing etched enclosures - but it's a bit of an art involving quite a lot of expensive trial and error.
It's worth doing but is time consuming, especially if you'd rather be making/recording music.
Back to Top
Davesax1965 View Drop Down
Forum Senior Member
Forum Senior Member
Avatar

Joined: May 23 2013
Location: Macclesfield
Status: Offline
Points: 1339
Post Options Post Options   Thanks (0) Thanks(0)   Quote Davesax1965 Quote  Post ReplyReply Direct Link To This Post Posted: September 05 2017 at 07:12
Excellent ! ;-)
MACCLESFIELD ILLUMINATI
https://brotherhoodofthemachine.bandcamp.com/
Back to Top
pitfall View Drop Down
Forum Senior Member
Forum Senior Member
Avatar

Joined: June 22 2012
Location: Essex, England
Status: Offline
Points: 108
Post Options Post Options   Thanks (1) Thanks(1)   Quote pitfall Quote  Post ReplyReply Direct Link To This Post Posted: September 05 2017 at 06:56
And here is the outside:
Back to Top
Davesax1965 View Drop Down
Forum Senior Member
Forum Senior Member
Avatar

Joined: May 23 2013
Location: Macclesfield
Status: Offline
Points: 1339
Post Options Post Options   Thanks (0) Thanks(0)   Quote Davesax1965 Quote  Post ReplyReply Direct Link To This Post Posted: September 05 2017 at 06:52
Wish I was etching my own PCBs, I get them done by PCB Express in China. 4- 5 for a 100mm square board.... but a month to arrive ! ;-)
MACCLESFIELD ILLUMINATI
https://brotherhoodofthemachine.bandcamp.com/
Back to Top
pitfall View Drop Down
Forum Senior Member
Forum Senior Member
Avatar

Joined: June 22 2012
Location: Essex, England
Status: Offline
Points: 108
Post Options Post Options   Thanks (1) Thanks(1)   Quote pitfall Quote  Post ReplyReply Direct Link To This Post Posted: September 05 2017 at 06:48
Thanks for the nice comment Dave!
Yes, these days it's all about trying to find a niche in a flooded market.
As I am a one man band, and do all my own designing and fabrication such as etching my own PCB's, I have to go for the low volume specialist instrument pedal market - though my long suffering partner reckons that I'm only on about 2 an hour!
Something a bit different with high quality parts and build, engineered to last at least 100 years if not 200.
(Well that's my sales pitch anyway).
Here's an internal shot of the last pedal that I've finished.
Back to Top
Davesax1965 View Drop Down
Forum Senior Member
Forum Senior Member
Avatar

Joined: May 23 2013
Location: Macclesfield
Status: Offline
Points: 1339
Post Options Post Options   Thanks (0) Thanks(0)   Quote Davesax1965 Quote  Post ReplyReply Direct Link To This Post Posted: September 05 2017 at 06:23
Home brewed modular synth: 18 months with a soldering iron. ;-)
MACCLESFIELD ILLUMINATI
https://brotherhoodofthemachine.bandcamp.com/
Back to Top
Davesax1965 View Drop Down
Forum Senior Member
Forum Senior Member
Avatar

Joined: May 23 2013
Location: Macclesfield
Status: Offline
Points: 1339
Post Options Post Options   Thanks (0) Thanks(0)   Quote Davesax1965 Quote  Post ReplyReply Direct Link To This Post Posted: September 05 2017 at 06:15
Sounds pretty nice. I've got a dual transformer based ring mod lying around somewhere. That's for the synth. Should work with 9v in. 

As for octave dividers, the Roland SH101 used a pretty simple circuit where the oscillator input was used to power a sub oscillator. The schematics are here and also a waveshaper option to produce sine wave. I believe this was copied for the Arturia Minibrute, and I'll be, hem hem, adapting it for synth designs. ;-) The plan is a two VCO synth with two multi waveform sub oscillators, similar to the ones below. Switchable 1-2 octaves down and with triangle and sine wave forms. 

Thinking about it, I've got a schematic to change triangle waves into square, so if I had a more indepth look into VCO waveshapers, I could have an input stage from a VCO with a waveform X, which then goes through a waveshaper or two. Sonic chaos. ;-))))

I've got a simple waveform mixer I designed attached to my modular (see pic) - I'll eventually build a 12 channel version (three op amps) using transistor white noise as well. ;-) 

The idea behind the "self build DIY synth" is simple. The subsystems are all redesigns of existing modular systems - VCO's, LFO's, VCF's etc. So they can be cheaply prototyped on individual small PCB's, then it's just a case of commoning them all onto one or two boards. 

Anyway, the sub oscillator schematic is below. 

http://electricdruid.net/a-study-of-sub-oscillators/

And here's the mixer. Dig them groovy LED sliders. Which is why the panel isn't made. Easy to drill holes in metal, cutting slots is not quite as simple. ;-)




Edited by Davesax1965 - September 05 2017 at 06:19
MACCLESFIELD ILLUMINATI
https://brotherhoodofthemachine.bandcamp.com/
Back to Top
pitfall View Drop Down
Forum Senior Member
Forum Senior Member
Avatar

Joined: June 22 2012
Location: Essex, England
Status: Offline
Points: 108
Post Options Post Options   Thanks (1) Thanks(1)   Quote pitfall Quote  Post ReplyReply Direct Link To This Post Posted: September 05 2017 at 05:00
I have a number of half built projects for ring modulators and octave dividers of various sorts - but as these tend to be the larger builds, they keep getting delayed by less time consuming pedals.
One that I'm currently looking at is a pedal called The Giant Hogweed by David Rolo - an octave up/down fuzz - but this one would be for myself!
Back to Top
Davesax1965 View Drop Down
Forum Senior Member
Forum Senior Member
Avatar

Joined: May 23 2013
Location: Macclesfield
Status: Offline
Points: 1339
Post Options Post Options   Thanks (0) Thanks(0)   Quote Davesax1965 Quote  Post ReplyReply Direct Link To This Post Posted: September 05 2017 at 04:13
Wow, Pitfall, those pedals look fantastic !! Well done. 

I'm thinking of designing my own in the near future. As ever, the main stumbling point is the graphics. I can get them done, but at expense. It's the usual thing, do I do electronics for a wide market with low profits, or do I do something like a synthesizer add on - small audience, big profits ? ;-)
MACCLESFIELD ILLUMINATI
https://brotherhoodofthemachine.bandcamp.com/
Back to Top
HackettFan View Drop Down
Forum Senior Member
Forum Senior Member
Avatar

Joined: June 20 2012
Location: Oklahoma
Status: Offline
Points: 5276
Post Options Post Options   Thanks (1) Thanks(1)   Quote HackettFan Quote  Post ReplyReply Direct Link To This Post Posted: September 04 2017 at 18:40
I have a few kits. A couple employ Tim Escobedo's schematics, the Bronx Cheer (Synth-sounding distortion filter thing) and the Jawari (a sitar-sounding thing). I can't remember for certain where. It was either from General Guitar Gadgets or from Moosapotamus, I think it was the former. I've also purchased the parts from various vendors for Escobedo's Pulse Width Modulator schematic.

I was originally intrigued by combinations of pitch-shifting and ring modulation. Later, I got interested in synth-sounding square waves produced usually by octave dividers. The MXR Blue Box does this straight out with its two octaves down setting. The Boss OC-2 also does this with both 1 and 2 octaves down when modded to bypass its filters. There are YouTube vids somewhere on the demoing it. It has a real Atari punk type of sound. I was fortunate enough to get someone to mod one for me. The octave dividers use comparators to create a very artificial sounding square wave (see Craig Anderton's Octave Divider and his Ultra-Fuzz). Modifications to the Roctave divider was the subject of alterations by someone a few years ago to create what they called a Synth Box. There was a fair amount of in-depth discussion on this and some sound files somewhere too, if they're still available.

Just recently (hasn't arrived yet) I ordered a guitar synth fully assembled from a do-it-yourselfer (http://www.parasitstudio.se) called Into the Unknown. He also has a synth called an Arcadiator and another he calls a 0415 Guitar Synth. These, especially the Arcadiator, have an Atari Punk sound, but they also get a unison sound and an octave up square wave along with the octave down, and it also provides pulse width modulation and a portamento effect. The designer uses CMOS circuits to digitize the circuits. I'm currently unclear as to whether comparators are classifiable as CMOS, but the results are much alike. Arcadiator kits were sold out, but I downloaded the schematic and build documents. I was able to get a kit of the 0415. I also ordered a kit for his Theremin Fuzz, which specializes in portamento, and a kit for his Sonic Reducer, which is a bit crusher type of thing.

I haven't started putting anything together yet. There are so many things to do. I plan on putting a work area together shortly, but I was away half the summer and now I'm catifying my house for two cats I just adopted. I look forward to doing some pedals, though. Thanks for the thread.



Edited by HackettFan - September 04 2017 at 18:52
A curse upon the heads of those who seek their fortunes in a lie. The truth is always waiting when there's nothing left to try. - Colin Henson, Jade Warrior (Now)
Back to Top
irrelevant View Drop Down
Collaborator
Collaborator
Avatar
Post/Math Rock Team

Joined: March 07 2010
Location: Australia
Status: Offline
Points: 11514
Post Options Post Options   Thanks (0) Thanks(0)   Quote irrelevant Quote  Post ReplyReply Direct Link To This Post Posted: September 04 2017 at 08:01
Thumbs Up
Back to Top
pitfall View Drop Down
Forum Senior Member
Forum Senior Member
Avatar

Joined: June 22 2012
Location: Essex, England
Status: Offline
Points: 108
Post Options Post Options   Thanks (1) Thanks(1)   Quote pitfall Quote  Post ReplyReply Direct Link To This Post Posted: September 03 2017 at 14:20
I did post more, but only the first pic seems to be displayed.
Back to Top
pitfall View Drop Down
Forum Senior Member
Forum Senior Member
Avatar

Joined: June 22 2012
Location: Essex, England
Status: Offline
Points: 108
Post Options Post Options   Thanks (1) Thanks(1)   Quote pitfall Quote  Post ReplyReply Direct Link To This Post Posted: September 03 2017 at 14:16
I have been building specific pedals for local musicians for several years now and am thinking about branching out and tacking orders from further afield.
Here are some of my more recent designs.

Back to Top
Davesax1965 View Drop Down
Forum Senior Member
Forum Senior Member
Avatar

Joined: May 23 2013
Location: Macclesfield
Status: Offline
Points: 1339
Post Options Post Options   Thanks (0) Thanks(0)   Quote Davesax1965 Quote  Post ReplyReply Direct Link To This Post Posted: August 29 2017 at 07:07
Oh yes. PS.

For about 40, the company above will make their kits for you. Takes about four days. Have a look at the link if you're interested. UK only, I think. 

http://shop.pedalparts.co.uk/
MACCLESFIELD ILLUMINATI
https://brotherhoodofthemachine.bandcamp.com/
Back to Top
Davesax1965 View Drop Down
Forum Senior Member
Forum Senior Member
Avatar

Joined: May 23 2013
Location: Macclesfield
Status: Offline
Points: 1339
Post Options Post Options   Thanks (0) Thanks(0)   Quote Davesax1965 Quote  Post ReplyReply Direct Link To This Post Posted: August 29 2017 at 06:13
They do a number of small add ons, in this case, power supply hum cancellers. 

Have a look at the site, recommended. This one's in the UK. 
http://shop.pedalparts.co.uk

The Grand Plan is to get a couple of Doepfer crossfade modules in the modular synth - modulars put out a 10 volt output - pedals expect millivolt inputs or they distort like nothing on earth. So the module (a) cuts the signal from the modular down to a millivolt level and sends it on a loop to a pedalboard. Pedals do their funky thang, output goes into the RECEIVE end of the loop on the synth and is then amplified back up to modular levels again. 

Instant cheap effects. Given that a Eurorack phaser can cost 200 and takes up case space. Just kick the audio out to pedals instead. 




Edited by Davesax1965 - August 29 2017 at 06:23
MACCLESFIELD ILLUMINATI
https://brotherhoodofthemachine.bandcamp.com/
Back to Top
 Post Reply Post Reply Page  12>
  Share Topic   

Forum Jump Forum Permissions View Drop Down

Forum Software by Web Wiz Forums® version 11.01
Copyright ©2001-2014 Web Wiz Ltd.

This page was generated in 0.656 seconds.