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Early ground radar transmitter, type TF3, and five valves, made at Bawdsey, late 1936-1938. The TF3 used two NT46 or two NT57 silica radio valves to drive two more NT57 valves in a neutralised push-pull amplifier.

Early ground radar transmitter, type TF3, and five valves, made at Bawdsey, 1936-1938

1936-1938
Early ground radar transmitter, type TF3, serial no. 001, late 1930s (Transfer sponsored by the radio and cable board). The TF3 used two NT46 or two NT57 silica radio valves to drive two more NT57 valves in a neutralised push-pull amplifier.

Early ground radar transmitter, type TF3, made at Bawdsey 1936-1938

1936-1938
Early ground radar transmitter, type TF3, and five valves, made at Bawdsey, late 1936-1938. The TF3 used two NT46 or two NT57 silica radio valves to drive two more NT57 valves in a neutralised push-pull amplifier.

Early ground radar transmitter, type TF3, and five valves, made at Bawdsey, 1936-1938

1936-1938