Mellotron M400
Streetly Electronics (Bradley Brothers), Birmingham 1972
Model: M400
86 x 57 x 84 cm, ca. 70 kg
Wood, metal, keyboard, magnetic tapes, tape frame, sound heads, CMC-10 control card

Each of the mellotron M400’s 35 keys uses a separate section of tape (3/8”) that produces a sound for a maximum of eight seconds after the key has been pressed. When the key is released, a spring mechanism returns the tape to the starting position. The tapes are arranged in a frame, with three different sounds recorded on each tape, selected by shifting the playhead. The frames of 35 tapes can be exchanged for different tapes. A control card allows volume, pitch and track to be set.