Super-in-LOW, Weirdamine, Synthroid DIY electronics WORKSHOPS

The second series of DIY noise gadgets by Thremindi Orchestra and Friends follows the series with Theremini, Touchtone, and Micronoise.

For soldering, you will need the following tools: lead-free solder, soldering iron, long-nose plier, diagonal cutting plier, table protection surface, sponge for solder iron tip, desolder wick.

For etching, you will need to set up a chemical lab. Make sure that you handle all chemicals with great care, always wearing eye protection glasses, silicone gloves, and use wooden tweezers to move the copper PCB in the chemical solutions. Follow the instructions on the following link.

Super-in-LOW is a low-frequency oscillator with four potentiometres. 

Bill of materials
2x 2MΩ linear potentiometer
3x 100nF film capacitor
2x 1μF electrolyte capacitor
1x LED
1x 14 pin chip holder
1x 16 pin chip holder
1x IC4093
1x IC4040
1x 9V battery holder or power plug for adapter
1x switch 3,5mm jack out
5x bridge wire
40cm wire for potentiometer (optional)
40cm wire for amplification antenna
– Made in Slovenia with love and poor man’s SMD technology ♥
Materials: PDF instructions | PDF film for PCB etching | Casing for laser cutter
Credits: Simon Bergoč | Ljudmila Lab | Theremidi Orchestra. Video by Tilen Sepič.

Weirdamine is a white noise maker developed from John Leafcutter’s Wrongamine making brown to high pitch noise controlled by LDRs (light-dependent resistors) that change the pitch of three oscillators with the amount of light projected on their squiggly surface. The making of this was one of the most romantic DIY projects for me, with lots of hanging around at Ljudmila = Art and Science Lab and some chemical reactions in the process of etching. This extremely unpredictable small device was made in collaboration with Zergon. We redesigned the original PCB to make it not just weird but simply beautiful… The original schematics for Wrongamine was published on Leafcutter John’s webpage and is now unfortunately unavailable. One of these days, I might remake a KiCad schematics 😉 

Bill of materials
3x LDR (light dependent resistor)
2x 10kΩ resistor
3x 1MΩ resistor
1x 10k linear potentiometer
2x 330pF ceramic capacitor
1x 220pF ceramic capacitor
1x 10μF electrolyte capacitor
3x 100nF film capacitor
3x 1N4148 diode
1x 14-pin chip holder
1x 16-pin chip holder
1x IC40106
1x IC4049
1x 9V battery holder/power supply
1x switch 3,5mm jack out
9cm wire for potentiometers (optional)

– Made in Slovenia with love and poor woman’s SMD technology ♥
Materials: PDF instructions | PDF film for PCB etching | Casing for laser cutter
Credits: John Leafcutter | ZergonLjudmila Lab | Theremidi Orchestra. Photo by beepblip.

Synthroid is an eight tone tuchpad synthesiser.

Bill of materials
4X 220Ω resistor     
2x 2kΩ linear potentiometer
2x 2MΩ linear potentiometer
3x 100nF film capacitor
2x 1μF electrolyte capacitor
1x LED (light-emitting diode)
1x 14 pin chip holder
1x 16 pin chip holder
1x IC4093
1x IC4040
1x 9V battery holder or power plug for adapter
1x switch 3,5mm jack out
5x bridge wire
40cm wire for potentiometers (optional)
40cm wire for amplification antenna
– Made in Slovenia with love and poor woman’s SMD technology ♥
Materials: PDF instructions | PDF film for PCB etching | Casing for laser cutter
Credits:
Chimbalab (Constanza Piña Pardo a.k.a. Corazón de Robot & Claudia González Godoy) | Ljudmila Lab & Luka Frelih | Theremidi Orchestra. Photo by beepblip.