Demeter Amps revamps its trademark tremolo with Tremulator Plus guitar effects pedal

Back in 1982, Ry Cooder asked James Demeter for an amp-style tremolo pedal; the TRM-1 was the result, and ended up on the pedalboards of everyone from David Gilmour to Eric Clapton and Jonny Greenwood. Now, Mr Demeter has updated the concept with the Tremulator Plus.

New features include a clock waveform to adjust between triangle, flattened triangle or square wave, while the bias control is now externally adjustable rather than an internal trim pot - this allows users to quickly adjust the pedal's on/off ratio, while pointing it straight up engages the traditional Cooder setting.

The Tremulator Plus is handmade in the USA and available now for $299 street.

Michael Astley-Brown

Mike is Editor-in-Chief of, in addition to being an offset fiend and recovering pedal addict. He has a master's degree in journalism, and has spent the past decade writing and editing for guitar publications including MusicRadar, Total Guitar and Guitarist, as well as a decade-and-a-half performing in bands of variable genre (and quality). In his free time, you'll find him making progressive instrumental rock under the nom de plume Maebe.