Chamberlin Model 200 (1951–1959)

A rare keyboard instrument that plays pre-recorded sounds from 1/4 inch tape, built for home organists.

Overview

The Chamberlin Model 200 is a keyboard instrument made by Chamberlin between 1951 and 1959. It followed the Model 100 Rhythmate and was replaced by the Model 300/350 series. Around 100 units were made, aimed at the home organ market. Each key triggers a tape playback mechanism, so realistic instrument sounds and rhythm patterns can be played in real time.

Specifications

Tape format	1/4 inch tape
Sound banks	Ability to have different banks of sound stored upon the same tape, with the tape being spooled to switch sound banks
Rhythm feature	Incorporated a rhythm section on the low end of the keyboard: a bass and drum pattern played at the touch of a single [key]

Design

The Model 200 rewinds with a pulley mounted on a large C-shaped spring. The patent documentation shows the C-shaped springs. This model introduced the tape playback reservoir box, and the whole mechanism was turned around so the tape moves toward the rear of the unit during playback. An indicator tape slides through a slot in the front panel to help with positioning when changing sound stations. Each drum note has a screw adjustment that raises the circumference of the tape channel slightly, which fine-tunes the starting point for that note.

Context

The Model 200 was developed as the successor to the Model 100 Rhythmate and expanded Chamberlin's presence in the home organ market. The Model 300/350 series later replaced it.

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