Tiptop Audio SD808, Drum Module, Snare drum clone of the later TR-808 for modular systems, Controls for Level, Tone, Snappy and Accent, Analog circuit of the TR-808, Powerful output gain stage that generates signals up to 20 Vpp, Width: 4 HP, Depth: 14 mm, Power requirements: +18 mA (+12 V) / -16 mA (-12 V)