The Electric Mistress is an analog flanger from Electro-Harmonix, first sold in 1976 and the first flanger in pedal format. Every version after the first blue and red one has a Filter Matrix mode that freezes the flange at any point for chime-like tones. The Deluxe version is still in production, and NEO Mistress and Stereo Electric Mistress are digital recreations.
An analog stereo flanger and filter matrix stomp box for electric guitar. It runs on a dedicated 24 V power supply. It has input, effect out, and clean output jacks. It uses three knobs — color, range, and rate — plus a switch for the filter matrix function. It is not rack-mountable.
The Electro-Harmonix Deluxe Memory Man Mk4 is an all-analog stomp-box delay/echo pedal with built-in chorus and vibrato. It has no MIDI, no computer editing, no rack-mount capability, and requires a 24-volt power supply. It features a 1/4-inch input, a dry output, and a dedicated echo output for routing to a separate amplifier.
The Electro-Harmonix Polychorus Mk2 is a stereo analog stomp-box modulation pedal for guitar. It offers chorus, flanger, double track, and filter matrix modes via toggle switches. It has one input and two outputs. It requires 24V power. It has no preset memory.
The Small Stone is a 4-stage analog phaser pedal introduced by Electro-Harmonix in 1974. Designed by David Cockerell, it became central to Jean-Michel Jarre’s sound and was later reissued in a Nano chassis. Its simplicity — one knob, two modes — gives immediate, expressive motion but no depth control, no buffered bypass, and no digital features.
The Electro-Harmonix Deluxe Memory Man is an analog delay pedal introduced in 2008, offering up to 550ms of delay, selectable chorus or vibrato modulation, true bypass switching, and mono audio I/O.
The Big Muff Pi is a 1969 fuzz effects pedal with four transistors, two soft-clipping stages, and a tone stack that scoops mids when centred. It delivers smooth, saturated, bass-heavy sustain at any volume—making small amps sound bigger. It was intended to mimic Hendrix but became heavier and more distinctive. It does not offer gain staging, midrange recovery, or dynamic clean-up.