General purpose triode. Low current (60 mA) filament designed to be operated from dry batteries. 3 volt directly heated cathode.

The base fitted to this valve was designed to allow it to be used in place of a UV201A. The base of a standard UV199 was smaller than the standard UV base.

Physical Description

Tubular glass bulb with standard American 4 short pin (UV) base. Mounted on display block.

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