Lockdown Lunacy

Well, we're all confined to our homes while the COVID menace stalks the streets so here's a goold old blast of insanely resonating modular synth with some 808 drums from Native Instruments Battery.

CEM3340 Voltage Controlled Oscillator

Just got this one completed and working. Uses the classic (reissued) CEM3340 chip as used in so many classic synths like the Sequential Prophet 5, Roland SH-101 and many others. The PCB wasn't quite right so I had to bodge wire a resistor and capacitor into the CV mixing section, not really worth fabricating a new PCB though as the finished module works very well.

FrequencyThing New PCB

After several failed PCBs, we now have a working version that reads frequency from the modular! So far I've burned out four Arduino Nanos and a 20x4 LCD display module but we're getting closer to a working unit all the time. Next step is writing the rest of the firmware for the Nano to control the DAC and the 4066 switch.

Buchla 292 Low Pass Gate Clone

I stumbled across a video demo of a clone of the Buchla LPG on Youtube and was phenomenally impressed. So much so that I knew I had to build one. It's an ancient type of filter using Vactrols, a combination of an LED and a light-dependent resistor to effect a frequency response change. And it sounds wonderful.

The first PCBs aren't quite right, I managed to omit the two voltage tracks to the ICs so this first version is patched up with a couple of bodge wires to make it work. Only smoked one opamp making it, a new record.

Routemaster Number five

Having made a complete fuckup of two previous boards by putting the voltage regulators in the wrong way round, I've rattled through building this new version. One more board to build then the modular cases will finally be ready for me to transfer the synth modules into.

Ich bin ein Berliner

I never quite understood the term "Berlin school" synthesis. And President Kennedy's famous declaration translates as "I am a doughnut". So maybe this is doughnut school improvisation. Anyway, it's the modular synth doing its thing while I remain only nominally in control of the sounds it produces.

U.F.O. detectors online

I have been known to occasionally provide guitar for my brother's outlandish space rock project, Brotherhood of the Machine. Strangely, I go far more crazy apeshit on other people's recordings than on my own.

Roland JD-XA CV sequencer

Turns out the JD-XA's sequencer has two channels of external CV and gate for modular fun and games. Unfortunately there's no clock output or modulation CV output but you can still have bags of fun sequencing the excellent Frequency Central System X modules from the keyboard. So here's a quick and dirty one-bar sequence as an experiment.