Projects Archive - Page 2 of 2

Power Supply with USB CV/Gate out

This is simple project to make Power Supply efficient enough to power up many devices like synth from one source. This means to free up space used by many power bricks for every synth, drum machine or sound effects. Most of the sound gear use 9V, some use 12V and other 5V from USB, so there is a problem with a lot of tangled up cables with different socket types. I have unused laptop power brick that has around 16V and 5A on the output, use couple of power regulators to get down to 12V, 9V and 5V. I used

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Blueberry – IoT Device

Blueberry is my past project that came from idea of wireless USB drive and pocket Web Dev Server that was evolving and finally ended up as a remote IoT home automation device. You can see the progress and components used to make this one here. First version was based on ESP-13 WiFi module (a very small version of ESP8266), micro USB-UART RS232 TTL FT232 3.3/5V converter and small 3.7V 450mAh lipo battery and USB charger. The problem was to solder the wires to a small 1,5mm raster pads of a ESP-13 and find good enclosure for it. Fortunately I had

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Cassette Tape Player Mods

Another simple mod but very satisfying one. If you need this warm analog lo-fi tape sounds in your synth setup, you don’t need to buy some expensive multitrack Tascam Portastudio like recorders. You can get this cheap brand new Bush Portable Cassette Player and Recorder with AM FM Radio, and do some mods to it! First is just a pure visual mod, removing the antenna and front cover with the speaker to give it easy access to the cassette. We will also move the switch from AM/FM because I would like to use build-in radio as additional input/instrument source and

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Velleman LAB-1 Mod

Here is a simple mod for 3 in 1 Soldering Station, Regulated DC Power Supply and Digital Multimeter – Velleman LAB-1. Multimeter module is operated using 9V battery that we don’t want to use. But how to replace it? Well, we can use Regulated Power Supply module instead of a battery, but that could disrupt operating of this module and can cause voltage drops when we use it for powering some other circuits. But there is another possibility, we can use power from Multimeter LCD backlight socket, unfortunately it’s 9V AC. So we just need to convert AC to DC,

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Gakken SX-150 Mods

Here are some mods of my Gakken SX-150 analog synth. I have added resonance feedback and drone knobs. CV/Gate inputs and 1/4 inch audio output. LFO blue LED and external power based on 5V power regulator connected to the battery terminals. Remove batteries and unscrew the board. Drill hole for the resonance pot between decay pot and power switch. Install 1kΩ pot and solder leads to the ends of R39 smd resistor on the PCB. 5V power regulator is added on the other side of the PCB, it’s middle (GND) and right (OUT) legs fits to the battery wire holes.

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Korg Monotron Duo Mods

Simple mod to add external power and cv/gate control input to a Monotron Duo synth. … Continue readingKorg Monotron Duo Mods

Digital Art

Here are all of my graphic designs made in 2005 till 2007. Goal was to merge various styles like vector art with some 3D elements, spruced up with fractals. Made in Apophysis and Photoshop.

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