The Dr. J D54 is an analog delay with modulation controls like the old EHX to go from slight flutter to speedy vibrato. With the modulation dialed in you can get some really out there tape like warble. Convenient LED light flashes to the speed of the undulating wave making adjustments easy.

Specifications –

Rich Analog Delay
750 ms Max Delay
Speed, Depth Modulation Controls
Level, Feedback, Time Delay Controls
True Bypass
Sturdy and solid. These were made to last.
Powered by 9V battery or standard Boss style AC Adapter