Belton BTDR-1 DigiLog Reverb
The Belton BTDR-1 Reverb module allows
manufacturers of amplifiers and pedals to simply and easily add
reverb to their products.Who's Using It?
- Alien Amps Space-O-Verb pedal
- BYOC reverb pedal kit with Dwell knob
- Mod Amp Kits The Verb pedal kit
- General Guitar Gadgets' reverb pedal kit
- Hermida Audio Reverb pedal, reviewed
by Guitar Player Magazine
- Lee Jackson's Mr. Springgy pedal
Ordering
Larger quantities:- U.S.A.: WGI, Inc.
- International: Belton Engineering Co., LTD
Design Resources
- Datasheet
- Example reverb pedal schematic
- Part library for EAGLE PCB
- Dan Rhodes designed a carrier board for hand-wired amps. He includes a schematic for interfacing the BTDR-1 to a tube amp.
FAQ
Why are some modules noisy in my application?The noise levels of the DigiLog modules vary between -89 dBV minimum to -72 dBV maximum. If you design your circuit around a specific module that happens to be in the middle or quiet end of this range, a module on the noisier end of this range is obviously going to sound noisy.
I recommend that you review the circuit in the BTDR datasheet and reverb pedal schematic (above), which was designed to maximize the perceived signal-to-noise ratio of the module. Use this circuit as a reference for your design, and test your circuit using a module that is on the noisier end of the range.
Also, the long-decay modules tend to be noisier (on average) than the medium-decay modules; and the short-decay modules tend to be quieter.
Several designers have been very successful with variations of this example circuit in mass-produced products. I am confident that you can adapt this circuit to your needs.