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Paradigm X
Joined: Feb 15, 2011 Posts: 363 Location: Null and void
Audio files: 2
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Posted: Mon Oct 28, 2013 3:06 pm Post subject:
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Skrog Productions wrote: | FX dismantle & wiring this weekend .
I have taken the pcb out of the stompbox case and it looked quite difficult to take the pots off the manufactured pcb without damaging tracks so, i decided just to snip the pot legs with cutters , leave the pots in place but not connected and run wires from the snipped legs sticking up from the pot thru holes and sleeve them with heatshrink , this allows me to re-assemble the stompbox if i ever need to , unlikely .hurrah !
Dave. |
hah, great idea, i was wondering how best to rehouse a behriner delay.
what are you doing with the on off switch (foot pedal_? mine defaults to off. Would shorting the pcb coneections work?
looks great, mental wiring. very impressed. |
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Skrog Productions
Joined: Jan 07, 2009 Posts: 1196 Location: Scottish Borders
Audio files: 155
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Posted: Mon Oct 28, 2013 5:34 pm Post subject:
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Hi Paradigm X
On my fx pcb there is a little push switch , i put my continuity meter over the poles to find the switch pins then ran 2 wires from it to a panel mounted push to make momentary switch , when i power up the synth the fx led comes on and i can bypass using the push , i also have a dummy jack in the input of the fx permenantly plugged in , this simplified keeping the multi pole switch jack happy
The orange synth is surprisingly no noiser than my modular system , the fly leads from the pcb's are not much longer than my usual modules and i made sure i cable tied the lfo / adsr cv's & noise wires away from mixer / filter wires.
Dave. |
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Skrog Productions
Joined: Jan 07, 2009 Posts: 1196 Location: Scottish Borders
Audio files: 155
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Posted: Mon Oct 28, 2013 5:40 pm Post subject:
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oh , i forgot , Delay fx control pots prefer as short a path as possible back to the pcb , if you are wiring to a panel keep the fx pot wires as short as you can.
Dave. |
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Paradigm X
Joined: Feb 15, 2011 Posts: 363 Location: Null and void
Audio files: 2
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Posted: Tue Oct 29, 2013 1:57 am Post subject:
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Great stuff thanks. Ill have a look tonight. Cheers! |
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Skrog Productions
Joined: Jan 07, 2009 Posts: 1196 Location: Scottish Borders
Audio files: 155
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Skrog Productions
Joined: Jan 07, 2009 Posts: 1196 Location: Scottish Borders
Audio files: 155
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Skrog Productions
Joined: Jan 07, 2009 Posts: 1196 Location: Scottish Borders
Audio files: 155
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Cynosure
Site Admin
Joined: Dec 11, 2010 Posts: 966 Location: Toronto, Ontario - Canada
Audio files: 82
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Posted: Wed Nov 06, 2013 11:26 am Post subject:
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I trust you know what you are doing and everything is safe, but is it not dangerous to have those regulator heatsinks attached to wood? Is the wood covered in foil underneath?
Also, I think that the negative regulators I use have voltage on the heatsink. Is that not a risk of creating a spark if those regulators are too close? What happens if some dust or a splinter of wood bridge the gap?
These might be silly questions, but I just want to be cautious before I go repeating what I see you doing, miss something that the pics don't show, and burn my house down. |
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Skrog Productions
Joined: Jan 07, 2009 Posts: 1196 Location: Scottish Borders
Audio files: 155
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Posted: Wed Nov 06, 2013 2:16 pm Post subject:
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Heheheh , Jake , stop it , it's not april 1st yet and im on the floor laughing, here's my reply ,
...Yes, the regulators operate at a nominal 1000degC (higher as i go up the keyboard scale).
For regulator casing voltage insulation properties i used cat skin instead of the usual mica insulators (gives a filter sound that'd make you fall in love).
House fires are Darwins way of ensuring the survival of patient, well grounded & educated diy synth builders.
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blue hell
Site Admin
Joined: Apr 03, 2004 Posts: 24079 Location: The Netherlands, Enschede
Audio files: 278
G2 patch files: 320
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Posted: Wed Nov 06, 2013 4:34 pm Post subject:
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Regulators usually have thermal shutdown somewhere at 150C or so ... to get wood to fire needs higher temperatures - about 600C. And that would have to be for some sustained time, by then the heat problems in electronics usually would have solved themselves.
Sparks is not an issue with the low voltages on the secondary side .. before sparks occur there probably would first be an issue with creep - where current flows over a surface rather than through an arc ... as an indication, for 230 Volt a creep safe distance of about 7.5 mm is used (that would be over a PCB surface) ... so for 50 Volt or so (and it could not get worse than that prolly, even on the unregulated side) ... lets say 2 mm would be safe already.
Spark distances depend on geometry and air conditions a lot ... but let's say about 0.5 cm worst case for 5 kV.
Now when things get wet this would all change a bit .. but even then in a low voltage system I'd expect no problems - with fire that is .. the equipment may get damaged of course ... _________________ Jan
also .. could someone please turn down the thermostat a bit.
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Cynosure
Site Admin
Joined: Dec 11, 2010 Posts: 966 Location: Toronto, Ontario - Canada
Audio files: 82
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Posted: Wed Nov 06, 2013 8:07 pm Post subject:
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Ok thanks for clearing up everything. I guess I was just being overly cautious.
Now I need to hunt down some stray cats to get insulation!
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Skrog Productions
Joined: Jan 07, 2009 Posts: 1196 Location: Scottish Borders
Audio files: 155
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Posted: Thu Nov 07, 2013 12:57 pm Post subject:
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some sounds ...........
mp3, 1- top part of synth 1 vco sub & square through 24dB vcf / vca into RAT distortion.
mp3, 2- Both vco's 1+2 run through the top vcf / vca , bass sound , no fx , dry sound.
mp3, 3- Mfos sequencer to both vco's 1+2 run through the bottom vcf 12dB / vca, dry sound.
mp3, 4- TechnoFun 2 Mfos sequencers, one to top synth , the other to the bottom synth, turning dials , dry sound.
more sounds with the FX600 at the weekend.
Dave.
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orange synth square & subs & RAT.mp3 |
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Orange synth 2vco's to 24dBvcf with glide.mp3 |
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Orange synth 2vco's to 12dB vcf & mfos sequencer.mp3 |
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Orange synth TechnoFun 2sequencers 2 monosynths.mp3 |
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Skrog Productions
Joined: Jan 07, 2009 Posts: 1196 Location: Scottish Borders
Audio files: 155
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Posted: Tue Nov 12, 2013 11:38 am Post subject:
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Hullo
Jammed out some more sounds with my Mfos sequencer & Keyboard (korg-X5) into the Poly-DAC 4voice midi to cv converter for some transposed sequences .
Sounds 1 - Sequencer & Keyboard vco2 through vcf2 highpass / vca2 to FX600 Flanger.
Sounds 2 -Keyboard vco1 through vcf1 / vca1 to FX600 Chorus.
Sounds 3 -Keyboard vco1 sub through vcf1 / vca1 to FX600 phaser.
Sounds 4 -Random sequence vco1&2 vcf1 / vca1 to FX600 Delay.
and a pic of the new synth nestled into it's tower
Dave.
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sequencer -vco vcf vca - FX600 flanger.mp3 |
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keyboard cv & 1 synth thru chorus fx.mp3 |
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ELLL - EFFF - OHHH thru phaser FX.mp3 |
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random sequence to 1 then 2 vco's thru Delay FX.mp3 |
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Paradigm X
Joined: Feb 15, 2011 Posts: 363 Location: Null and void
Audio files: 2
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Posted: Tue Sep 09, 2014 6:37 am Post subject:
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Dave
Sorry, i followed this thread all the way through, and even listened to the demos, but forgot to post afterwards!
Excellent sounds and an amazingly flexible synth.
I am currently building a much smaller monosynth type thing. I might ask a question relating to wiring up multiple LFOs to multiple sources etc. if you dont mind.
Amazing job overall tho, and all diy, case, panel, everything.
Nice one.
Cheers, Ben |
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Skrog Productions
Joined: Jan 07, 2009 Posts: 1196 Location: Scottish Borders
Audio files: 155
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Paradigm X
Joined: Feb 15, 2011 Posts: 363 Location: Null and void
Audio files: 2
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Posted: Thu Sep 11, 2014 4:24 am Post subject:
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Thanks,
I have been mulling this over, and was thinking theyd need buffering, thanks for the schematics. Some are going via foniks attenuverter chicklets, so im guessing they shoudl be buffered ok?
Funnily enough, i was on a site last night, and found an ideal peice of ply in the skip too! karma
Ill start a new thread maybe, dont want to spoil yours.
cheers, Ben |
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Skrog Productions
Joined: Jan 07, 2009 Posts: 1196 Location: Scottish Borders
Audio files: 155
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Posted: Thu Sep 11, 2014 10:22 am Post subject:
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Hi Ben
I've not looked at foniks circuit yet , but if the attenuverter is going to feed a lot of cv inputs, buffers will help .
Hehe, site skips are great because they have to separate the waste for recycling, that means lots of nice clean off cuts not spoiled by general rubbish , I usually ask the site agent or general foreman if I can take some off cuts and they are fine with it .
Dave. |
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