via brian comnes:"Well here at last are pictures of my homebrew version of a Metasonix TS-21 Hellfire Modulator based on an Eric Barbour circuit (of Matasonix fame). This thing is definitely a twisted and demented sound shaper. The name TUMOR REFILLED HALO is an anagram of the original's HellFire Modulator. The unit has 5 tubes consisting of a rectifier for DC voltage, a VCA distortion tube, an LFO oscillator tube and two tubes for adding more artifacts to the sound. The chassis is an old bench test unit that I salvaged. Eric's power circuit design uses dual transformers to economically generate the proper voltages for the the tubes at 6VAC and 140VDC and is very innovative. The overall sound is similar to the TM-1 Waveshaper . I'll send sound samples later. I'm sure the Noisefest crowd will get a rise out of this."
Title link takes you to the shots.
What, no sound clips? :P
ReplyDeletethey are coming soon, (this weekend) I'm away on business and ran out time to make them ...
ReplyDeleteAwesome job on the saved case, looks just like a metasonic unit. Is that just a circular plexi window to view the glowing tubes on the front? Great job, can't wait to here some samples.
ReplyDeletethe port hole was where a voltmeter used to be...it now has blue plexi and yes you can see the tubes glow ..this unit originally was a bench "harness tester" that apparently was used to run up voltages to 1000 VDC , I still have the "Caution - 1000 Volts" plaque from the front which I may put back on, I am also thinking about putting lights in the case that are tied to the CV so light will pulse inside the case tied to an LFO...but I really do owe you al some sound samples first ....
ReplyDeleteSound?
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