Museum of the Broadcast Television Camera

Marconi colour television camera dichroic colour separation unit

Marconi colour television camera dichroic colour separation unit

This is the light separation unit from the colour camera. Light, from the lens, enters lower right though the vertical astigmatism correctors, though the relay lens and iris to the dichroic separation unit in the box to the rear, then though absorption filters, a mirror and finally on to the tube photocathodes.

 

The silver object with the green wires is a "Magslip" motor that drives the iris through the reduction gears. The magslip motor is driven from a similar magslip transmitter at the CCU, its rotation following that of the transmitter.

This is a later light separation unit from the B3200 camera but I understand it is the same size and shape as the first generation ones.

 

 

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