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 Forum index » DIY Hardware and Software » MusicFromOuterSpace.com designs by Ray Wilson
Sound lab with Buchla Modules
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kluj



Joined: Oct 07, 2018
Posts: 9
Location: Hamilton, On

PostPosted: Sun Oct 21, 2018 12:23 pm    Post subject: Sound lab with Buchla Modules Reply with quote  Mark this post and the followings unread

Hello, I'm building a patched out version of the SoundLab Mini-Synth plus. I've also been picking up a few things from www.fluxmonkey.com; this includes some of the Buchla modules this fine young lad has created. I bought them because I am an adult with modest disposable income who was not allowed enough Ninja Turtle action figures as a kid and must now impulsively buy (fairly priced!) PCB's. I'm seeking to make noize with a 'z' and work my way up the learning curve to something better; while this goes on I hope to use the hell outta any gear I'm making. Think Delia Derbyshire beating Cabaret Voltaire with a foam bat.
Question is this: if I'm powering the Soundlab with a dual +12/-12 V's, will the Buchla curcuits function alongside this same power source? From what I've gathered online the Buchla powered by 10 V although I've seen others. Here are links to the schematics of said PCB's: http://rubidium.dyndns.org/~magnus/synths/companies/buchla/Buchla_1600_1_200.jpg
http://urekarm.tripod.com/synth/buchla_bpf.pdf
http://electro-music.com/forum/phpbb-files/buchla208_randv_532.png
A push in the right direction would be much appreciated!
Daniel
P.S. Anyone else here think that flux-solder smells like peppermint?
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LFLab



Joined: Dec 17, 2009
Posts: 493
Location: Rosmalen, Netherlands

PostPosted: Fri Oct 26, 2018 3:02 am    Post subject: Reply with quote  Mark this post and the followings unread

With regard to smell, there are various types of solderwire with different types of flux. Some are worse than others, but yeah, I don't mind the smell, peppermint though hmmm. Smile

IIRC, some of the older Buchla circuits use 15V, I think the 144 does, I did a board for that, but it also works on 12v.
Low pass gates (292 and such) is just a opamp with a few vactrols, so will happily work on most voltages you throw at it.

The circuits you posted probably work on +12v and ground (just do not use the -12v)
I have built that 208 random generator, and I have it in the 15v segment of my case, not sure if that will work on 12v (but probably does).
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elmegil



Joined: Mar 20, 2012
Posts: 2138
Location: Chicago
Audio files: 16

PostPosted: Sat Oct 27, 2018 5:58 pm    Post subject: Re: Sound lab with Buchla Modules Reply with quote  Mark this post and the followings unread

kluj wrote:
Think Delia Derbyshire beating Cabaret Voltaire with a foam bat.


Perfect! Smile
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AlanP



Joined: Mar 11, 2014
Posts: 713
Location: New Zealand
Audio files: 40

PostPosted: Sat Oct 27, 2018 8:15 pm    Post subject: Reply with quote  Mark this post and the followings unread

I've built the 208Random, too, and mine runs on 12V (after a power diode, so probably more 11.3V.)
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kluj



Joined: Oct 07, 2018
Posts: 9
Location: Hamilton, On

PostPosted: Mon Oct 29, 2018 6:58 am    Post subject: Reply with quote  Mark this post and the followings unread

Alright, to GND and 12+. Good to know and will try - thanks for all the feedback. Cool
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fluxmonkey



Joined: Jun 24, 2005
Posts: 708
Location: cleve

PostPosted: Thu Nov 08, 2018 12:23 pm    Post subject: Reply with quote  Mark this post and the followings unread

"young lad"? Razz Razz (i'm a grandpa)

As mentioned, the random source should work fine on 12v. From memory, the BPF will work but not quite as well (lower output swing, i think), and the 160noise source probably will not... i think it needs the higher breakdown voltage to get a usable noise level.

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