New Gieskes SeaGoUt Eurorack Module

Published on Jun 13, 2015 ggijs

http://gieskes.nl/eurorack/?file=seagout

Gieskes 317VCPreA Walkman Driver for Eurorack

Published on May 6, 2015 ggijs

via http://gieskes.nl/eurorack/?file=317VCPreA

"The module is designed for connecting walkmans to eurorak (but it can also do other things, read below)

pre amp

about: The pre amp used is a burr brown OPA2134 in two stages with melf metal film 1% resistors for low noise. Low noise is not realy needed for use with a walkman.. because they are quite noisy, but if you want to use it with other things like piezo elements or a guitar you can also use it to preamplify those.

A: The audio input is a Stereo 3.5mm jack input (all other jacks are mono jacks). It is Capacitor coupled. The tip of the connector goes to the pre amp, The sleeve goes to the 1VOctave tracking system.
If the volume goes above 1.4v PP it will be cut of by clipping diodes, the output can still reach the rails of the opamp on the output stage.

B: The audio output is Capacitor coupled. The output can be 10v PP, depending on the input.

C: CV input for controlling the audio output volume.
It takes 10v PP (adjust it up/down with E).
The circuit uses a vactrol, the curve it makes is anti log.. so it is somewhere between a gate and a pre amp.

D: Attenuation for the audio input signal.

E: Audio output volume. Moves CV input up or down.

317 regulator controller

F: CV input for adjusting L

G: Sets amount of offset from ground for L

H: 1v Octave input (the sleave of conector A is used for tracking information)
Range is 0v to 5v (the actualy octave range depends on the connected device, usualy the range is 2 to about 4 octaves).

M: Adjusts voltage of F.

L: Set voltage of output from I (317 output).

.: (small dot connected to M) 1v octave offset, 1 octave range, from C to C (that is the musical note C. Use a 2mm flat screw driver to adjust).

K: Activate 1v Octave tracking.

Adjustment menu for 1V Octave tracking:

Hold the button while powering up (keep holding it for about 5 seconds.)
The led in the button will blink when you let go of the button, if you push the button it will blink 1 time more, until you reach 7 blinks, then it will reset to 0 blinks, and you can go round again.
If you hold the button for 2 seconds you will enter the next menu.
There are 3 settings you can change. after exiting the last settings menu your changes will be saved and used the next time you powerup the module.
Change the settings for how you feel the device you connected works best.

adjusts the rise in frequency tracking (7 blinks is maximum).
adjusts the fall in frequency tracking (7 blinks is maximum).
adjusts the smoothnes in low voltage range (0 blinks is most stable (if lower then 2 blinks is used here, it can overshoot and get stuck, so its best to use at least 2 blinks here)).

317 regulator

about: This section is optically separated from the rest of the modular. This means the ground is not connected to the eurorack system and the power is also not connected to the eurorack system.
This is designed for driving small DC motors in walkmans, but you can also connect other things to it.. for instance a LED light or power a complete device with it.

I: 317 voltage regulator output. The output voltage is from 0v to above 0v. The actual output voltage depends on the power supply you connect to it. Maximum current draw is 500ma.

J: DC + in the center, maximum 12v DV input. It is advised to keep the input voltage between 6v and 9v, i use 7.5v If the input voltage is 12v the voltage regulator will get hotter then if you connect a lower voltage. the less hot it gets the longer it will fuction. Heat can also cause the output voltage to change (mainly because the vactrol can heat up)"

geiskes vu perc - Volt Meter Mechanical Eurorack Percussion Module

Published on Mar 7, 2015 ggijs

http://gieskes.nl/eurorack/?file=vu-perc

Geiskes 3trinsRGB+1c Analog Audio Video Synthesizer

Published on Oct 1, 2014 ggijs

3TrinsRGB+1c video input

Published on Oct 1, 2014
0:00 Oscillatoscope1c to Schele Mixer to 3TrinsRGB1 video input
0:30 VHS player to 3TrinsRGB1 video input
0:53 TR-808 to 3TrinsRGB1 video input
1:04 Wireless video reciever 3TrinsRGB1 video input
1:28 Casio sk1 RAM to 3TrinsRGB1 video input
1:57 10v PP Triangle wave to 3TrinsRGB1 video input
2:26 GVS1 to 3TrinsRGB1 video input
2:40 HSS3j to 3TrinsRGB1 video input
3:02 Canon DV camera to 3TrinsRGB1 video input (with horizontal scroll patch)

3TrinsRGB+1c assembling instructions


https://www.flickr.com/photos/6232301...

http://gieskes.nl/instruments/?file=3TrinsRGB1

Gieskes nodrums 2014 Eurorack Module

Published on Apr 8, 2014 ggijs·153 videos

http://gieskes.nl/eurorack/?file=no-d...

gieskes Euroboy - Nintendo Gameboy Eurorack Module

Euroboy playing Graba
Published on Nov 25, 2013 ggijs·148 videos

"http://gieskes.nl/undefined/eurorack/..."

Euroboy doing Tetris
Published on Nov 25, 2013

CLICK FOR MORE »

Gieskes Voicerec1b & Voicerec2c

Published on Nov 1, 2013 ggijs·146 videos

http://gieskes.nl/eurorack/?file=voic...



http://gieskes.nl/eurorack/?file=voice-rec-2

Gieskes Oscillatoscope1a

Published on Aug 31, 2013 ggijs·144 videos

"0:00 no inputs used, video out is connected to korg kross 4 to mix with camera.
1:50 VCOFan connected to startve input.
3:01 CV A and CV B and Starve are connected to doepfer modules.

recording device was a sony DCR-TRV30
Audio was recorded directly to camera audio inputs.
Camera used to film was a cheap 5 euro security camera from ebay connected to composite input of TRV30
Video output from Oscillatoscope1a was connected to the TRV30 composite input."

kunsthal weert

Published on Aug 6, 2013 ggijs·143 videos

"exhibition of: http://gieskes.nl/undefined/eurorack/ and more."

Gieskes Eurorack VCO Fan Module

VCOFan1b
Published on Jul 8, 2013 ggijs·141 videos

00:00 +/- VCOFan frequency range.
00:29 Base kick example.
01:03 VCOFan audio out to VCOFan LED CV input.
01:46 VCOFan works best vertical mounted.
02:11 VCOFan current consumption (in mA).

http://gieskes.nl/eurorack/?file=vco-fan

GIESKES Circuit Bent Casio SK-1

Note: Auction links are affiliate links for which the site may be compensated.
Uploaded on Dec 14, 2006 ggijs·137 videos

"http://gieskes.nl/circuitbending/?file=casioSK
Circuit bent casio sk 1 video, with big drag contact.."


via this auction

"Hand Crafted by renowned audio pioneer GIESKES. In essence, its a circuit bent SK-1 with a modular patch bay connected to a giant, rotary drag contact. Patch points are then connected to the contact points around the plates, giving you ENDLESS amounts of patching capabilities..."

CLICK FOR MORE »

Gieskes Voice-Rec Eurorack

Published on Dec 20, 2012 by ggijs

http://gieskes.nl/eurorack/?file=voice-rec

Voice-Rec and HD-Rot and Scratch-Tonewheel and A147 and A160 and ...

Published on Dec 20, 2012

http://gieskes.nl/eurorack/?file=voice-rec
http://gieskes.nl/eurorack/?file=rot

no-drums by gieskes.nl

Published on Dec 13, 2012 by ggijs

http://gieskes.nl/eurorack/?file=no-drums

VU-Perc & HD-Rot & VCOFan

Published on Nov 25, 2012 by ggijs
http://gieskes.nl/eurorack/?file=rot
http://gieskes.nl/eurorack/?file=vco-fan

ONOMATOPEE W.C.M.I.I.W.Try #3: HH

Published on Nov 15, 2012 by ggijs

http://www.onomatopee.net/project.php?progID=578df74e6e458317063a9c89c66f9a94...

"Exhibition with; Algorithm SA-5 #1, 3Trins, Gameboy generative, Gameboy reboot, Analog HD2, Gameboy bricks exploded in a box, and All the Hard Soft Synths ever made (if not available in picture form)."

VCO Fan - Eurorack Voltage Controlled Fan Oscillator

YouTube Published on Aug 27, 2012 by ggijs

"http://gieskes.nl/eurorack/?file=vco-fan"

"connection:
- Voltage controlled Volume.
- Voltage controlled Fan speed.
- Audio out.

knobs:
- Volume attenuation.
- Fan Speed attenuation.

power consumption:
- +12v (30 to 150 mA depending on Fan speed)
- - 12v is not used."

Algorithm SA-5 #1

YouTube ublished on Aug 22, 2012 by ggijs

http://www.flickr.com/photos/62323010@N00/7837708610/
http://www.flickr.com/photos/62323010@N00/7837560302/
http://www.flickr.com/photos/62323010@N00/7837562314/

Circuitbending a Yamaha SU-10

YouTube Published on May 25, 2012 by ggijs

"http://gieskes.nl/undefined/circuit-bending-tests/?f=yamaha-su10"

Kawai MS-20 circuitbent

YouTube Published on Apr 28, 2012 by ggijs

"The mods i did on the kawai ms-20 are very simple..

1. LDR over the resonator of the main CPU.
2. LDR on the "on" button.

http://gieskes.nl/circuitbending/?file=kawai-ms20"

Gieskes DEP2b video #1

YouTube Published on Apr 25, 2012 by ggijs

"0:00 Sample loop mode, with Casio PT-50
0:39 Pitch shift arpegio mode, with Paul hamer guitar
1:15 Sample loop time stretch mode, with Paul hamer guitar
2:09 Various modes, with Casio PT-50 drum loop"