Tag: modular synth

Startup trouble

I started noticing trouble with my synth power supply units (PSUs) a while ago. Maybe you are having similar trouble too, or maybe you will. Hence this post, because now I know what’s going on, and how to fix it. I have a couple of Frequency Central FC Power supplies, and a couple based on […]

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Hero and Sidekick

This is the Hero VCO, my new voltage controlled oscillator. It started off as kind of a mashup of the Kassutronics VCO 3340 and the LMNC 1222 VCO. You can still find traces of both in the schematic, as well as bits of the Thomas Henry VCO Maximus, although little has evaded modification. Like those, […]

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Kosmodrome fills up

I finally got around to putting a third PSU and bus board in the case and loading up all those modules I made in March and May. That included making a dozen power cables in one sitting, and testing them — the testing took maybe three or four minutes, with the cable tester. They all […]

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YuSynth comparators

Here’s a comparators module from YuSynth, in Kosmo format. I bought the PCB from Soundtronics and put it behind my own panel. This module has two comparators, each of which takes an input voltage and turns on a gate whenever that voltage is above a threshold. It also puts out a trigger on one output […]

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Barton Full Wave Rectifier

This is the Barton Musical Circuits BMC21 Full Wave Dual Rectifier in Kosmo format. It’s built using a PCB I bought from Barton, behind a panel I designed and had fabricated. It’s a kind of wavefolding circuit. An input waveform is AC coupled, a DC bias is added, and it’s rectified, so anything below 0 […]

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Kassutronics Dual LFO

Kosmodrome has a low frequency oscillator, the MFOS voltage controlled LFO, with a modification to give it a sync input. A pretty powerful module. I don’t really need more such fancy LFOs but a couple of basic, non synched, non voltage controlled LFOs would be useful. So this is my new Kosmo format dual LFO. […]

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