EA TREMOLO RTS PCB

The ready-to-solder PCB for the Improved EA Tremolo, a simple, great-sounding tremolo that is one of the most popular DIY builds around.

About the effect

The EA Tremolo comes from an article by Anthony Leo in the November 1968 issue of Electronics Australia magazine, and Greg Nabke brought it to the DIY community online. It is simple to build and sounds good, which is why so many builders choose it. Our Improved version adds some great improvements over the original, and the project page includes wiring layouts with a trem/boost footswitch, added volume controls and a flashing bypass LED, plus a modifications guide.

Specs

• PCB size: 5.8cm x 3.0cm
• Solder mask, plated-through holes and silkscreened part IDs

Build resources

• Complete instructions for this PCB
• Improved EA Tremolo build instructions (PDF)
• Improved EA Tremolo schematic (PDF)
• Parts layout and wiring diagram (PDF)
• Modifications instructions (PDF)