DIY analog synthesizer pages

30 years with synth DIY!

The front panel for my 30 years old Formant VCO

Latest news

May 3rd, 2008.
This year it has been 30 years since I built my first synth modules! The Formant series in British Elektor magazine was what got me started. First I built the power supply and then the VCO that you see in the pictures. The power supply is still in use. It's what I use in my workshop when I build and test new modules. The VCO and other Formant modules are retired though.
Note that when I built my first modules, analog synths were not ”vintage” – it was the latest technology! Well, maybe not modulars. The analog polysynths were on their way. So after a couple of years, the Formant was retired but I still loved the analog synth sound. That's why when analog started to become ”retro”, I dusted off the Formant and started to work on new modules, which eventually became the Bergfotron. 

The dusty components on my 30 years old Formant VCO

The very primitive home-made circuit board for my 30 years old Formant VCO

The Formant synth-DIY series ran in British Elektor between May 1977 and September 1978

 

April 13th, 2008.
I etched a new prototype circuit board today. Some very interesting developments and new ideas are in the works. Stay tuned!

Jörgen

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This is Bergfotron

My synthesizer concept

Mechanical construction

My workshop

Voltage controlled oscillators

Voltage controlled filters

Voltage controlled amplifiers

Voltage controlled phaser

Envelope generators

Low frequency oscillators

Waveshapers

Midi control

Case

Power supply

Sound clips

Wind controllers

Analogue synth enthusiasts of Stockholm

Latest update May 3rd, 2008.