1974 Musitronics Mu-Tron III Envelope Filter, 9v Mod, True Bypass, LED
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Great shape, and an older model. Needed a re-cap, and worked wonderfully after that, but the bypass was not optimal as the signal goes through the preamp circuit. So, I did true-bypass wiring. I also did the 9v mod, which replaces the odd 3-prong power adapter jack with a standard 9v (neg center) jack and a little board that converts the 9v to the bi-polar power needed for this. I recommend an adapter with a minimum of 500mA current for optimal performance. Finally, since I had replaced the caps, I also added a control to adjust the sensitivity of the optocoupler. Nice addition that allows more tweaking. Really sounds amazing, and so much more convenient to power.
This item is sold As-Described
This item is sold As-Described and cannot be returned unless it arrives in a condition different from how it was described or photographed. Items must be returned in original, as-shipped condition with all original packaging.Learn More.
| Listed | 2 years ago |
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| Condition | Very Good (Used) Very Good items may show a few slight marks or scratches but are fully functional and in overall great shape.Learn more |
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