Modulation (Tube/Optical Tremolo (harmonic, optical, square)) · $214
The Universal Audio Flow Vintage Tremolo is a digital tube/Optical Tremolo (harmonic, optical, square) pedal based on the Tube/optical tremolo emulation, with Speed, Depth, Volume (3 knobs) controls. Features tap tempo. From $214.
| Category | Modulation (Tube/Optical Tremolo (harmonic, optical, square)) |
| Circuit / based on | Tube/optical tremolo emulation |
| Signal | Digital |
| Controls | Speed, Depth, Volume (3 knobs) |
| Switches | Mode (Dharma / 65 / Square); true/buffered bypass |
| Footswitches | 1 |
| Bypass | True/trails (buffered) bypass (switchable) |
| True bypass | Yes |
| Tap tempo | Yes |
| I/O | mono in / mono out; USB-C (firmware) |
| Power | 9V DC center-negative (2.1 x 5.5 mm) |
| Power draw | 250 mA |
| Enclosure | compact (single footswitch) |
| Dimensions | 2.29 x 2.58 x 4.75 in (58 x 66 x 121 mm) |
| Weight | 0.66 lb (0.30 kg) |
See all Universal Audio pedals →
Closest matches from other makers, by spec and circuit.