Morley Tel-Ray Revival Volume Boost Optical Volume Pedal Overview

The Morley Volume Boost revives the classic Tel-Ray-inspired concept in a smaller, pedalboard-friendly format. It pairs an optical volume circuit (no pots to wear out or get scratchy) with a foot-selectable boost designed to add up to 40 dB when you need more level.

For players who use volume as an instrument, the smooth audio taper is built for violin-style swells and controlled dynamics. A dedicated boost knob lets you dial in the boost amount whether you’re in boost mode or volume mode.

Stage usability is reinforced with LED indication and a glow-in-the-dark treadle grip so you can find it under low light. The cold-rolled steel housing and silent switching design are intended to keep operation clean and reliable in live and studio rigs.

Key Features

• Optical Volume Circuit: Uses optical circuitry to avoid scratchy pots and reduce wear over time.
• Up to 40 dB Boost: Boost knob provides up to 40 dB of boost, selectable by foot for level jumps when needed.
• Smooth Audio Taper: Designed for controlled, violin-style volume swells and expressive dynamics.
• Silent Switching: Built for quiet activation with no “pops” or bleed when engaged.
• Glow-in-the-Dark Treadle Grip: Helps locate the pedal quickly on dark stages.
• LED Indication: Visual status indicator helps confirm what is on or off at a glance.
• Compact Tel-Ray-Inspired Form Factor: Smaller than the original Tel-Ray version for easier pedalboard placement.
• Rugged Steel Construction: Cold-rolled steel housing supports dependable use.

Technical Specifications

• Morley Part Number: MTVBO
• Circuit Type: Optical volume circuitry
• Boost Range: Up to 40 dB
• Switching: Silent switching
• Power: One 9-volt battery or optional Morley 9V adapter
• Warranty: One-year warranty
• Dimensions (L x W x H): 6.85 in x 4.5 in x 3.25 in