Museum Hours:

Saturday 10-6

Sunday 12-5

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Early Color Television

Colortone Adapter

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Technical information

This adapter was made in 1950 to allow black and white sets to receive CBS field sequential color broadcasts in black and white. It attached to the horizontal and vertical oscillator circuits in the set to change them to the scan rates for the CBS standard. Three models were made, the X-101 for sets like the RCA 630, X-202 for sets using horizontal synchroguide circuits, and the X-303 for sets with horizontal multivibrators. Our adapter is the model X-202.

The adapter and documentation shown below were donated to the museum by Dave Abramson.