UV 200 triode, branded Radiotron on the base and RCA on bulb. Triode was used as a detector,

This triode was known as a 'soft' tube; the bulb contained Argon at very low pressure.

It has a 5.0 volt directly heated cathode and is electrically equivalent to valve types "UX200" and "00A".

Physical Description

Four-pin UV style base.

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