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  Topic: JH Living Vocoder - Modular PCBs (with SMT components)
carlhudson83

Replies: 4
Views: 8757

Post Posted: Sat Sep 22, 2018 7:00 pm    Subject: JH Living Vocoder - Modular PCBs (with SMT components)
Forum:  DIY Hardware and Software » Jürgen Haible designs
Hi everyone,

Since speaking to Ralf at RandomSource and realising there are no more PCBs available for the Haible Living Vocoder, I've taken it upon myself to redesign the Living Vocoder using Jurg ...
  Topic: Bringing the Vocoder to life
carlhudson83

Replies: 167
Views: 260484

Post Posted: Mon Sep 17, 2018 8:58 pm    Subject: Bringing the Vocoder to life
Forum:  DIY Hardware and Software » Jürgen Haible designs
Hey guys,

Hope nobody minds me posting on an old thread..

I've been speaking with Ralf over at RandomSouce regarding the Vocoder. He's out of stock on the vocoder PCBs, so I'm attempting a rede ...
  Topic: Arduino - MIDI - CV
carlhudson83

Replies: 6
Views: 16418

Post Posted: Tue Mar 19, 2013 5:48 pm    Subject: Arduino - MIDI - CV
Forum:  DIY Hardware and Software » Microcontrollers and Programmable Logic
sure!

It needs an R2R network across pins 8-13, and the highest bit on pin 7.

MIDI CC values 5-8 are used to control the ADSR parameters - these are read by a MIDI in (opto) circuit at the RX pi ...
  Topic: Arduino - MIDI - CV
carlhudson83

Replies: 6
Views: 16418

Post Posted: Tue Mar 19, 2013 5:36 pm    Subject: Arduino - MIDI - CV
Forum:  DIY Hardware and Software » Microcontrollers and Programmable Logic
I made a variation on this - an arduino CV envelope generator.. It takes MIDI gate input and creates an ADSR envelope, passing it as a 0-5v CV..

It reads MIDI CC values and uses this to control the ...
  Topic: MFOS wallwart power with Doepfer
carlhudson83

Replies: 0
Views: 1303

Post Posted: Tue Feb 19, 2013 9:10 am    Subject: MFOS wallwart power with Doepfer
Forum:  DIY Hardware and Software » MusicFromOuterSpace.com designs by Ray Wilson
Hi..

I just built the MFOS wallwart power supply, and I'm hoping to use it to power a single Doepfer module, the A-105 SSM filter..

All was well with my power supply, it was pumping out a nice, ...
  Topic: replacing AD821 transistor pair (electronotes VCO)
carlhudson83

Replies: 2
Views: 5319

Post Posted: Sat Dec 08, 2012 2:33 am    Subject: replacing AD821 transistor pair (electronotes VCO)
Forum:  DIY Hardware and Software
Great stuff - thanks!

Carl
  Topic: replacing AD821 transistor pair (electronotes VCO)
carlhudson83

Replies: 2
Views: 5319

Post Posted: Fri Dec 07, 2012 6:07 am    Subject: replacing AD821 transistor pair (electronotes VCO)
Forum:  DIY Hardware and Software
Hi all..

I'm looking at building myself a Thru-Zero VCO, as per the Electronotes 1981 edition schematic - http://electronotes.netfirms.com/EN129.pdf

And I've come across a problem that seems qui ...
  Topic: MFOS Power supply stripboard
carlhudson83

Replies: 48
Views: 62723

Post Posted: Thu Nov 29, 2012 3:36 pm    Subject: MFOS Power supply stripboard
Forum:  DIY Hardware and Software » MusicFromOuterSpace.com designs by Ray Wilson
Hi everyone..

I've been trying to build the stripboard version of this circuit but I'm coming up against a brickwall..

I'm getting the +12V fine from the 7812.. But when I probe the out of the 7 ...
 
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