Low mu general purpose triode.
6.3 V indirectly heated cathode. This is one of the earliest valves to have a 6.3 V heater. This voltage was chosen to make them suitable for use in car radios operated from a 6 V electrical system. Used as a Class A R.F. amplifier.
Manufacturer: RCA Radiotron Co., Inc. Harrison, New Jersey, USA

Physical Description

Conical bulb on five pin UY style base.

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