WESLIE MODULATOR COMPLETE KIT

A complete kit for the Weslie Modulator, a very cool, warbly modulation that ranges from wah-type sounds to almost tremolo.

About the effect

The Weslie comes from a "Leslie Effect Simulator" circuit published in Popular Electronics in March 1971, contributed to us by Dean Hazelwanter. It predates modern rotary simulators by decades and is far simpler than today's commercial Leslie-style stompboxes. Since it doesn't really sound much like a Leslie, we call it the Weslie, but it does deliver a great range of wah and warble textures. The original 1971 article is linked below if you enjoy a bit of history.

What you get

• All the parts and materials you need to build one, including the PCB
• Kit-wide standards: true bypass switching, RoHS parts, a double-sided PCB with plated-through pads, Switchcraft jacks and a solid plastic battery snap
• General information about our kits

Enclosure options:

• 125B: 125B enclosure spec sheet
• 1590BB: the larger enclosure; 1590BB enclosure spec sheet
• No Enclosure: the kit without an enclosure, for builders supplying their own

Build resources

• Complete instructions for this kit
• Weslie Modulator instructions, bill of materials, schematic and layout
• 1971 Leslie Simulator article

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