General purpose triode designed for operation from a 4 volt accumulator or dry batteries. A triode with low grid-plate capacitance and high plate resistance intended for use as a radio frequency amplifier or as a resistance-coupled audio amplifier. 4.0 volt directly heated cathode.

Physical Description

Conical glass bulb cut away to show the internal structure of a triode valve with a horizontal electrode structure. American style 4 pin (UX) base. Mounted on a display block.

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