Liquidator Tube Phaser/Chorus Effect

Published:2013/3/10 21:50:00 Author:Ecco | Keyword: Liquidator Tube, Phaser, Chorus Effect | From:SeekIC

This project involves the conversion of a Hammond AO-47 organ vibrato unit (Original Hammond Schematic) into a 4 phase guitar/music phaser/chorus box. The individual phase signals can be mixed for a wide variety of sounds. The Liquidator name comes from the liquidy sounds that the device creates, it wiggles the audio all around. Used Hammond vibrato units can often be purchased for little money on eBay and provide the majority of the circuitry for this device. The Hammond AO-41 box can also be used for this project, it has one extra 7 pin tube socket. The Liquidator's companion project is the FuzzniKator Tube Distortion/Preamp. Builders should have decent technician and metalworking skills to build this project. A chassis and power supply with input output jacks, power line, knobs and switches needs to be constructed. The AO-47 box needs many soldering modification to convert it to the phaser/chorus circuit. Additionally, an LFO circuit needs to be constructed from an Arduino microprocessor platform to make the appropriate control waveforms. Thanks to the tube circuitry, the audio quality of this phaser is superior to a transistor or op-amp based phaser, the level of hiss is very low.



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