Electro-Harmonix Pulsar Variable Speed Tremolo vs Fulltone Supa-Trem ST-1

The Electro-Harmonix Pulsar Variable Speed Tremolo and the Fulltone Supa-Trem ST-1 are both pedals sharing modulated, spring.

Similarity
citedBlended from circuit-archetype lineage, dynamic feel, tone-signal overlap and tone-vector distance — the tone vector itself is derived from editorial description text, not a measured acoustic signal, so this reflects how similarly the catalog copy describes the two, not a lab measurement. Shown only within a gear class, and only where there's enough evidence to be meaningful.

47% somewhat different

Shared genres
citedGenres both listings are associated with.
  • Classic Rock
Shared tone character
citedDerived from overlapping tonal signals across both listings.
  • modulated
  • spring
Citation fame
citedCitation/mention fame — how often this gear is cited across artist rigs and gear discussion.
0%
0%
Price

$99via Reverb

Description

The Electro-Harmonix Pulsar is a variable-speed tremolo pedal from Electro-Harmonix, delivering optical-style amplitude modulation tremolo with Rate, Depth, and Shape controls. The Shape control selects between different tremolo waveforms from smooth sine wave to sharp square wave chopping. The Pulsar provides studio-quality tremolo with a wide Rate range from gentle slow pulse through fast, machine-gun tremolo chop.

The Fulltone Supa-Trem ST-1 is a true tube-driven tremolo pedal producing warm, organic, vintage-style volume modulation with genuine tube character rather than a digitally simulated pulse. Volume and Speed controls shape the pulse, and an optional ramp function lets the tremolo speed accelerate or decelerate smoothly rather than switching abruptly between rates. Its tube circuit gives the pulse a rounder, more musical shape at both slow, deep settings and fast, choppy speeds compared to solid-state tremolo circuits. It suits players wanting authentic, amp-like tube tremolo character in pedal form, particularly for vintage surf, blues, and classic rock tones.

Genres
citedGenres this gear is documented as being used in.
  • Country
  • Blues

Related searches

Electro-Harmonix Pulsar Variable Speed Tremolo vs Fulltone Supa-Trem ST-1 — Shared Character & Differences — NodeTone