Joined: Oct 29, 2012 Posts: 21 Location: Poland, Poznan
Posted: Wed Oct 31, 2012 2:00 am Post subject:
Hallo,
this is my first synth - Stylophone clone (100% analog), enclosure contain parts from '70 laboratory equipment. Second synth - MFOS Sound Lab (uses one-side board), from 2011/2012.
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Custom designed PCB, obsolete components.
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Cheap plastic and aluminium.
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Soundlab in compact case.
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Uses custom designed one-side, home-etched PCB.
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Joined: Oct 29, 2012 Posts: 21 Location: Poland, Poznan
Posted: Thu Nov 01, 2012 9:48 am Post subject:
Thanks,
I had to design new panel because I couldn't get bigger enclosure. When I printed it, I realized, there is no "trigger" button and it doesn't fit in "envelope section". Then I saw Dave Smith Instruments Mopho with "push it" button - so i decided to put "trigger" in the center and expose it somehow.
The knobs are really nice and small, and fit great in such tight panel. And are only 30 cents.
Joined: Mar 20, 2012 Posts: 2177 Location: Chicago
Audio files: 16
Posted: Tue Nov 06, 2012 8:31 pm Post subject:
A side trip in the Time Machine
MANY thanks to Synthcube for the kit that made this possible. Once I started I couldn't stop. Easy peasy, built it in 2 days, basically. It might help that I was familiar with the circuit from troubleshooting another one, but there you go
The audio is a triangle in, regen set to max negative and modulation by the LFO on its slowest setting, for the first minute or so, an then noodling with knobs after that.
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so i eventually finished the mutant vactrol filter of our much-loved mr scott stites (using a PCB i bought over at muff's):
_________________
cheers,
matthias
____________
Big Boss at fonitronik
Tech Buddy at Random*Source Last edited by fonik on Wed Nov 21, 2012 4:19 pm; edited 1 time in total
Joined: Mar 20, 2012 Posts: 2177 Location: Chicago
Audio files: 16
Posted: Wed Nov 21, 2012 9:38 pm Post subject:
Utility Distribution Module
Trigger/Gate mults and CV mults (including offset) built from MFOS CV/Gate distributor schematics (though I omitted the offset from one CV buffer), and Sum/Difference circuit found somewhere else. Built the three sections on separate boards and then had merry hell trying to figure out how to mount them on such a dense panel. Ended up building a stooge panel (?) from the flashing from Home Depot that others have talked about.
Not tested yet, but I'm pretty happy with the layout and wiring....
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One of those lo-fi radio shack "voice recorder" modules ($10), set up as a looper. the rca jack goes to a foot switch for recording. the knob controls the supply voltage, which slows things down.
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Joined: Mar 07, 2007 Posts: 4579 Location: London, UK
Audio files: 172
Posted: Thu Nov 22, 2012 1:19 pm Post subject:
dave_3283 wrote:
In a month, I went from completing my first module to this:
I've now got 4 Schmitz/CGS VCAs, 2 MFOS ADSRs, a MFOS State Variable Filter, and a MFOS Low Pass. Next up, a quadruple CGS LFO and 2 CGS VCOs...
And a lovely case too. Do you have VCOs already to run through it? _________________ Garret: It's so retro.
EGM: What does retro mean to you?
Parker: Like, old and outdated. Home,My Studio,and another view
Joined: Jan 30, 2009 Posts: 28 Location: Dallas TX
Posted: Thu Nov 22, 2012 4:00 pm Post subject:
EdisonRex wrote:
And a lovely case too. Do you have VCOs already to run through it?
Thanks! I've got a pair of Plan Bs just out of frame that I'm about to sell off. They will be replaced by a pair of CGS oscillators as well as a quadruple Utility LFO in the next week or two.
Joined: Jan 14, 2010 Posts: 5581 Location: Moon Base
Audio files: 705
Posted: Mon Nov 26, 2012 9:38 am Post subject:
Enneatronic Spectralizer Subject description: Dronebox with 9 squarewave oscillators
This is a circuit that I probably build 5 or 6 years ago, but I still had to put it in an enclosure. I originally planned
to make it into a cube shape (maybe use a photocube), but then I remembered this box I got not too long ago.
I expected it to be to small, but it was perfect!
The circuit itself contains 9 (tunable) squarewave oscillators for the sound, and 9 (non tunable) squarewave oscillators
that together with some resistors, caps and transistors create a fading effect (both for LED's and sound).
It has a build in speaker + amp with volume control, but you can also plug in some headphones. I wired the output of the
amp to the tip and ring of the jack (sleeve not connected). So you can plug in a stereo pair.
The line out is actually a stereo jack that functions as a EFX S/R for the build in amp. So you can add effects while
listening through speaker or headphones
I posted a recording last week which you can find here
and here's a video
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Posted: Mon Nov 26, 2012 12:30 pm Post subject:
Re: Enneatronic Spectralizer Subject description: Dronebox with 9 squarewave oscillators
PHOBoS wrote:
The circuit itself contains 9 (tunable) squarewave oscillators for the sound, and 9 (non tunable) squarewave oscillators
that together with some resistors, caps and transistors create a fading effect (both for LED's and sound).
Nice work. Found a pic of someone viewing that display
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_________________ Revenge is a dish best served with a fork... to the eye
Joined: Jan 14, 2010 Posts: 5581 Location: Moon Base
Audio files: 705
Posted: Tue Nov 27, 2012 6:21 pm Post subject:
elmegil wrote:
What are the 4 switches for?
The oscillators are divided in 3 groups (of 3) and with the first 3 switches from the left I can turn the audio of
each group on/off, which makes tuning a bit easier. The switch next to those 3 is to turn the display on/off,
and the switch above the LED is the power switch. _________________ "My perf, it's full of holes!" http://phobos.000space.com/ SoundCloudBandCampMixCloudStickney SynthyardsCaptain ColliderTwitchYouTube Last edited by PHOBoS on Wed Nov 28, 2012 2:54 pm; edited 1 time in total
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