![]() ![]() When you think of simple synths, what components come to mind? All you really need to make one is an oscillator, an amplifier, and some kind of input such that you can play different notes. Would you rather control your tape synth with a MIDI keyboard? Just add Arduino.Ĭontinue reading “Cassette Synth Plays With Speed Control” → Posted in Musical Hacks Tagged analog synth, cassette, Mellotron, potentiometer, synth This really looks like a fun little instrument to play. Speaking of which, isn’t the case design nice? It’s built out of craft plywood but aged with varnish and Mod-Podged bits and bobs from vintage electronics magazines. There’s also a polished Google doc that includes a schematic and the pattern pieces for making the cabinet. In the video after the break, gives a complete and detailed guide to building your own. These are each activated with momentary buttons located underneath the wooden keys. The Cassettone works by substituting the trim pot that controls the speed of the tape player’s motor with a handful of potentiometers. See for instance the Mellotron, or this relatively easy DIY alternative, ’s Cassettone cassette player synth. Tape may not sound that great compared to vinyl, but cassette players can be tons of fun when it comes to making your own music. As you can see from some of the gut shots, it should be fairly easy to figure how has put everything together. ![]() While there are no step-by-step build instructions, or a schematic, we do have some info about the instrument. The VCOs in his monosynth are based around the AS3340 VCO chip, which is a clone of the Curtis Electromusic Specialties‘ CEM3340 chip (used in machines such as the Oberheim OB-Xa, the Roland Jupiter-6, and the Sequential Circuits Prophet-5 among others.) The voltage controlled filters are based on Moritz Klein’s VACTROL based VCF circuits, and the envelopes based on Thomas Henry’s 555 envelope circuits (Google searches will dig those up pretty quickly, as well as schematics for builds using the CEM chip.) Finally, the keyboard is a donor from an Arturia Keystep. That’s what did and the result is this great looking, and great sounding, analog synth. The relative ease of building the individual components that make up an analog synth make it very tempting to DIY your own. ![]()
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