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Boost / drive 1.0.1 (2020-07-20) PROJECT SUMMARY A reproduction of a boost pedal from the early 1970s that featured a two-band tone stack. Actual size is 2.3” x 1.86” (main board) and 2.3” x 0.86” (bypass board). PLASMA VINTAGE DRIVE...
10 Document Revisions INTRODUCTION The Plasma Vintage Drive is a clone of the Colorsound Overdriver, a transistor-based boost/drive pedal with 2-band tonestack that was first sold in 1972. The Overdriver was an updated version of the Power Booster from 1970. The Power Booster ran at 18V using two batteries in series.
Film capacitor, 7.2 x 2.5mm Film capacitor, 7.2 x 2.5mm Film capacitor, 7.2 x 2.5mm 100n Film capacitor, 7.2 x 2.5mm 10uF Electrolytic capacitor, 5mm 100pF MLCC capacitor, NP0/C0G 22uF Electrolytic capacitor, 5mm 220n Film capacitor, 7.2 x 2.5mm PLASMA VINTAGE DRIVE...
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DC jack, 2.1mm panel mount Mouser 163-4302-E or equivalent. BATT Battery snap 9V battery snap Optional. Use the soft plastic type—the hard-shell type will not fit. 3PDT Stomp switch, 3PDT 125B Enclosure, die-cast aluminum Can also use a Hammond 1590N1. PLASMA VINTAGE DRIVE...
European convention which is reversed. If using any of the BC-series transistors, you’ll likely need to rotate them 180 degrees, but check the datasheet or measure them with a transistor tester to be sure. PLASMA VINTAGE DRIVE...
GND +V +V JACK GND JACK GND GND PCB 125B Shown with optional 9V battery. If battery is omitted, both jacks can be mono rather than one being stereo. Leave the far-right lug of the DC jack unconnected. PLASMA VINTAGE DRIVE...
(In other words: you don’t have to go out of your way to advertise the fact that you use these PCBs, but please don’t go out of your way to hide it. The guitar effects industry needs more transparency, not less!) DOCUMENT REVISIONS 1.0.1 (2020-07-20) Updated link to parts list spreadsheet. 1.0.0 (2020-07-03) Initial release. PLASMA VINTAGE DRIVE...
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