Analog Synth Universal Linear Power Supply PCB DIY

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"This sale is for (1) Linear Power Supply PCB. The buyer has to source the parts needed and build this unit themselves. This Power Supply is adjustable so you can calibrate the exact voltage you want.

When everything is built you have one clean Regulated Linear power supply capable of 1200mA depending on the transformer used and if you followed the recommended heatsink install.

******Be Aware that this project requires you to work with a Transformer. You will be working with voltages that can be lethal.*****
This Project is recommended for people who have built power supplies already using Mains Transformers, and would like a pro quality PCB.

Here are the specs:

Outputs: -12v, +12v (or you can adjust for 15v format), you get (1) Universal one (terminal block) and a Euro Format 16 pin IDC location.

Inputs: (1) AC center tapped input where you connect the transformer's Secondary. A Fuse is recommended for the Mains line on the Primary of the Transformer.
Daisy chained: (1) AC center tapped pass thru to use for daisy chaining another power supply. Remember this is AC.

Input 5v option: (1) Terminal block to connect a 5v Switching Power supply so that you can supply 5v to digital sources.
Daisey chained: (1) 5v Termainal block so that you can daisy chain the other power supplies and pass the 5v DC line.

I added the option for you to install terminal block connectors on the Regulators to make them easily serviceable/replaceable. There are arrows on the pcb indicating how the terminal block should be installed.

The recommended heatsinks get soldered on the pcb for a solid feel. Once you build this power supply you will see how solid it is.

Here is a link to a mouser Bom
https://www.mouser.com/ProjectManager/ProjectDetail.aspx?AccessID=aecc670cd8

Almost all the parts are on the Mouser Bom, the only part I could not find was the Terminal Blocks. Here is a link of which ones will fit on the pcb:
http://www.taydaelectronics.com/dg301-screw-terminal-block-3-positions-5mm.html

As for the Transformer, it must be Center Tap kind.
I have used this one with great success:
http://www.radioshack.com/product/index.jsp?productId=2102703

***You will also need 4-40 screws and #4 nuts for the regulators, Heatsink grease is also recommended.

Here are some pictures of the PCB, and an example of one of my builds."

Luke's Anger - SOUND FLOW FESTIVAL (UK) Live teaser

YouTube Published on Jul 9, 2012 by molotovsystem

"testing out some new sounds ahead of this weekend's live gig at sound flow festival..

http://soundflowfestival.com
http://soundcloud.com/lukes-anger"

Analogue Solutions BD78 - CR78 Style Bass Drum

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Noisebug (RSS)

"Analogue Solutions Modules are the same physical size and use the same power connectors as Doepfer a100 modules. They will mount in Doepfer eurorack cases and are 100% compatible when patching.

The red stripe on the power ribbon is red line down if used with Doepfer cases.

Included is a eurorack power ribbon and eurorack screws. Analogue Solutions screws available upon request.

Width 10HP

Manufacturer Description:
Bass / Conga / Bongo Drum

Width 10HP

Based on the CR78 bass drum. Provides a wide range of truly early electronic kick sounds. The tune and decay sounds must be finely balance. Allows Conga/Bongo style sounds to also be produced.

*Pure analogue voice circuitry.
*Accurate CR78 voice circuitry clone (CR78 bass / kick / tom / conga drum module).
*Extra tone controls and circuits for more sound variety.
*Discrete voice module so you can build up a drum modular.

Controls & Sockets:
Tune, Decay, Level.
Trigger, Audio out (3.5mm & 6.35mm)"

Modded Paia Fatman Analog Monosynth

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via this auction

"The following modifications were added:

Lee Diode modification
7555 Timer Upgrade
Knob modifications:
Extended low-end VCO pitch
Extended low-end VCF cutoff frequency
VCO Hard sync (Hardwired)
VCF Multimode (Lowpass / Bandpass) filter select switch - adds bandpass filter mode"

Click the pics for the super size shots.

FROSTWAVE QUAD MIDI-CV PLUS

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via this auction

Analogue Systems - rs360 Vocal/Phase Filter Bank

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You can find video of one posted here.

"Controls:
•Sig In Level (VCF1/2/3) The RS360 has one audio signal input, individual LEVEL controls determine how much of the input signal is fed to each of the filters.

•Frequency (VCF1/2/3) You may control the cut-off frequencies of each of the filters individually using the FREQUENCY controls provided. When a given Frequency knob is in its fully anticlockwise position, the cut-off frequency it controls is approximately 30Hz. As you rotate that knob clockwise, cut-off frequency increases until, it its fully clockwise position, it exceeds 15kHz.

•Resonance (VCF1/2/3) Each filter offers resonance, or ‘Q’, that you control using its RESONANCE knob. In the fully anticlockwise position, Q is approximately zero, and there is no emphasis of the signal at cut-off frequency. As you rotate the knob clockwise, Q increases, whereupon every mode of that filter will accentuate the harmonics that lie close to the cut-off frequency. Increasing Q further, the filters will exhibit ringing, and will severely colour the signals passed through them. If you continue to increase the resonance beyond a certain point, the filter will begin to oscillate, and each mode will produce a sine wave at the cutoff frequency determined by the various controls. This oscillation is produced by all four audio outputs. The exact nature of the wave varies from mode to mode, and you can use these differences to create tonal variations when using the RS360 as an oscillator bank.

•CV-In Vary Depth controls how much the CV-In Vary input influences the cut-off frequency.

•Master Frequency modifies the cut-off frequencies for all three filters simultaneously. This knob and its associated cv input control all three filter cut-off frequencies simultaneously within the range ∞V/oct to approximately 0.4V/Oct. The former of these makes the input invariant to incoming CVs, while the latter makes it oversensitive compared to the CV-IN 1V/OCT input.

Sockets:
•VCF1 CV-In 1V/Oct
VCF2 CV-In 1V/Oct
VCF3 CV-In 1V/Oct You may also control a given cut-off frequency using the associated CV-IN 1V/OCT input. If you apply a CV conforming to the 1V/Oct standard, cut-off frequency will track the CV in exactly the same way as a standard VCO. If the CV is supplied from a keyboard then, in common parlance, the filter tracks the keyboard at 100% and, with the resonance at maximum, you can ‘play’ the filter as if it were a conventional oscillator.

•CV-In Vary modifies the cut-off frequencies for all three filters simultaneously. This socket and its associated DEPTH knob control all three filter cut-off frequencies simultaneously within the range ∞V/oct to approximately 0.4V/Oct. The former of these makes the input invariant to incoming CVs, while the latter makes it oversensitive compared to the CV-IN 1V/OCT input.

•Sig-In audio input, accepts signals in the range ±10V.
•Low Output low-pass filter output
•High Output high-pass filter output
•Notch Output notch filter output
•Band Output band-pass filter output"

:) patchy

:) from CircuitsOverAll on Vimeo.

patchy from CircuitsOverAll on Vimeo.

Beat Slicer

Beat Slicer from Amanda Ghassaei on Vimeo.

This is an Arduino-powered grid controller which interfaces with MaxMSP to perform various audio processing applications. Eventually I hope to make it a portable device by writing all the audio processing into the Arduino's firmware.
In this video I'm using the grid to manipulate the playback of a J Dilla sample from the song Waves.
You can find the MaxMSP patch, schematics, and Arduino firmware in an Arduino Timer Interrupts tutorial I've just posted on Instructables:
http://www.instructables.com/id/Arduino-Timer-Interrupts/#step4
I'll be posting a complete build guide for this project on Instructables soon (http://www.instructables.com/member/amandaghassaei/).

IN there wald,,,,(mit rupert albert)

IN there wald,,,,(mit rupert albert) from DA-SAZ on Vimeo.

small jam,,,, wasp,tinysizer,sh101,moog delays,koma electronik,leploop.....
Switzerland July 2012.... good weather....free happy time....

Theremin demo

YouTube Published on Jul 9, 2012 by organfairy

"So now it is the time to actually (try to) make some music with this wacky contraption. In this melody (?) I use three different set-ups for the instrument. First I use the sound that it generates on its own, then I use the control voltage to control the tripple VCO I build two videos ago, and finally there is a small segment in the middle where I use it with a four-quadrant-multiplier (which some people might call a ring modulator).
The other noises on this recording is made on the Elka X-1000 organ with a bit of effects thrown in afterwards (primarily ecko and equalization)."