DIY LFO, Sampls & Hold, Stepped voltage generator, and Noise

Some old fracrack synth modules. The last is a Blacet Mixer Processor. The others are DIY. These DIY modules are

2 x 8 step sequencers. These are barebones they don’t have any quantization or even LEDs for the steps. These have a clock trigger out, forward backward switch, reset, and a carry out which can be used to chain them together.

A 10 step step sequencer it outputs a trigger at each of 10 steps. This has a clock out, and and end step which can be used to make shorter sequences.

2 x LFOs with triangle, square, saw, noise, and step out. These also have a sample and hold.

Dusting off the modular synth

Started thinking about synthesizers the other day this prompted me to dust off the old modular synth and get it working again. I was expecting more trouble but in the most if not everything seems to be working.

To get things working I needed to untangle and sort the massive amount of power cables and other wiring. In reality I disconnected almost everything and reconnected it all again. At this point I had the mixer setup and powered. From there I could run a test on each module. Lo and behold thing were functioning.

Here are a few images. Most of this would fit in the palm of your hand and run from your mobile phone these days.  That said in this case I can see the entire interface and there is a very real tactile experience.  Of course I’m not taking this with me.