Thursday, 27 March 2025
My 5U sequencer setup
Thursday, 6 August 2020
MFOS Bi-polar Power supply
i'VE built an earlier one & it works well.
It uses LM78XX/LM79XX or LM78LXX/LM79LXX regulators
That is, it uses an AC output wall wart.
DO NOT USE A DC OUTPUT WALL WART.
These are the parts needed:
| 1 | LM7812 +12V Voltage Regulator | LM7812 | U1 |
| 1 | LM7912 Voltage Regulator | LM7912 | U2 |
| 2 | Resistor 1/4 Watt 5% | 2.4K | R1, R2 |
| 6 | 1N4004 General Purpose Rectifier | 1N4004 | CR1, CR2, CR3, CR6, CR4, CR5 |
| 6 | Capacitor Electrolytic | 3300uF | C1, C2, C3, C6, C7, C8 |
| 4 | Tantalum Electro (35V) | 1uF | C4, C5, C9, C10 |
| 1 | 9 to 12 VAC Output Wall Wart | 12VAC Output | |
| 1 | Optional SPST Switch | SPST |
Tantalum capacitors -- they are polarized.
Links:
http://musicfromouterspace.com/analogsynth_new/WALLWARTSUPPLY/WALLWARTSUPPLY.php
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For more Euro DIY builds click here:
http://djjondent.blogspot.com.au/2017/12/diy-index.html
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Saturday, 17 October 2015
DIY - Eurorack
This page is my index for all Eurorack related DIY.
It includes build notes, hacks, etc
GENERAL
+ Small Euro drum - version 1
Barton Musical Circuits (BMC).
+ BMC 037 - EuroBuffer (Buffered Multiple)
+ BMC - FM Drum - build notes
Beast-Tek
+ Microbe
+ Pixel Drum
Division 6
+ Dual Sequencer
Doepfer
+ module 128 modification - Fixed filter bank
LZX Video Industries
+ Function Generator - build pics & notes
LZX - Cadet
+ Cadet I - Video Sync Generator - Build notes
+ Cadet II - RGB Encoder - Build notes
+ Cadet III - Video input - build notes
+ Cadet IV - Dual Ramp generator - build notes
+ Cadet V - Scaler - build notes
+ Cadet VI - Fader - Build notes
+ Cadet VII - Processor -Build notes
+ Cadet VIII - Hard Key Generator - build notes
+ Cadet IX - VCO - build notes
+ Cadet X - Multiplier - Build notes
LZX - Castle
Introduction
00_000 ADC - Analog to digital converter
01_001 DAC - Digital to Analog converter
02_010 Clock VCO
03_011 Shift Register
04_100 Multi Gate
05_101 Quad Gate
06_110 Counter
07_111 Flip flops
Manhattan Analog
+ CVP (Control Voltage Processor)
+Passive Dual LPG
MFOS (Music from Outer Space)
+ Bi-polar Power supply
Snazzy Effects
+ ArdCore -Installation Demo
Steiner-Parker
Steiner-Parker MicroCon Voice - Eurorack - Build notes
Zlob
Minimixer
Dual VCA
Dual VCO
Clock divider
Zlob SVF (State Variable Filter) - build notes













