Friday, January 14, 2022

WAMPLER: Plexi-Drive

Thought I might add the Wampler Plexi-Drive to the list after I did another Benson layout, as they are similar in many ways.  Just look at the two schematics side by side, and you'll see what I mean.

Like anything involving JFETS, choose the resistors going to the drains to suit your JEFTS; they can and often do vary.   Usually, aiming for half voltage on the drain is an excellent place to start; this is where a breadboard and some clips come in handy.


WAMPLER PLEXI-DRIVE - VERO LAYOUT

WAMPLER PLEXI-DRIVE - GUITAR FX VERO LAYOUT


WAMPLER PLEXI-DRIVE WITH TRIMMERS - VERO LAYOUT



WAMPLER PLEXI-DRIVE - VIDEO





WAMPLER PLEXI-DRIVE - SCHEMATIC & LTSPICE RESULTS


WAMPLER PLEXI-DRIVE - SCHEMATIC & LTSPICE RESULTS

note: LTspice doesn't have a regular switch in the library, so I've used a 100meg resistor in place of the "open" switch setting, and a 1ohm resistor for "closed".


WAMPLER PLEXI-DRIVE - SCHEMATIC & LTSPICE RESULTS

WAMPLER PLEXI-DRIVE - SCHEMATIC & LTSPICE RESULTS

WAMPLER PLEXI-DRIVE - SCHEMATIC & LTSPICE RESULTS

WAMPLER PLEXI-DRIVE - SCHEMATIC & LTSPICE RESULTS







2 comments:

  1. Marvelous! Everybody loves plexi!Wampler Plexi Drive and Ramble FX Marvel are my most used and favorite Pedal。

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    1. Thanks Ding. I’ll have to check out the Marvel as well. Looks interesting.

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