Peter Blasser put bounds modulation capability into many of his oscillators. But what is it? Consider an oscillator that bounces back and forth between an upper voltage and a lower … Read More

Features Four oscillators with independent controls and outputs Saw, Triangle, Ramp variable shape output Pulse output with variable width Rise rate pot and CV input Fall rate pot and CV … Read More

I built this nice through-zero VCO from Weston Precision Audio. Features:Thru-Zero Linear Frequency Modulation5 wave shapes: Sine, Triangle, Sawtooth, Square, & PulseExtremely good tuning linearity (<+/-5cents over 10 octaves)Built-in high … Read More

My recent build of a Befaco Rampage prompted me to revisit several variations of the Serge Dual Universal Slope Generator that I have in Eurorack: Befaco Rampage, Random*Source DUSG, Steady … Read More

The Dannysound EN129 Thru-Zero Oscillator is one of a pair of DIY only oscillator kits from Thonk.  See my post about the Cali Osc, too. The EN129 Oscillator is based … Read More

I had been experiencing pitch instability on my 258J VCOs. It seems that the frequency pots had become scratchy, because by rotating them a few times the instability would stop. … Read More

The Dannysound Cali Osc is one of two new, analog VCOs available from Thonk only as DIY kits. The Cali oscillator is a new and improved version of the classic … Read More

Sheep is an alternative software for Mutable Instruments Tides.  I decided to flash my Tides with Sheep to make it into a full time wave table oscillator.  I found I … Read More

I built a pair of Weather Drones!  It is a 24hp complete ‘synth voice’ for Eurorack.  It is only available as a DIY kit.  Weather Drones is composed of a … Read More