Summary

Twin triode designed for use as a power amplifier, frequency multiplier or oscillator. Each plate is brought out to a top cap to minimise lead inductance. The valve could be operated at maximum ratings up to 80 MHz and at reduced ratings up to 160 MHz. Also known as RK-34

USM 7 base, anode top caps. Filament. 6.3 volts at 800 ma. Anode 300 volts at 80 ma. 10 watts dissipation at up to 500 mhz.

Manufacturer: National Union Radio Corp., Orange, NJ, USA.

Physical Description

Base type: American style No. of pins in base: 7 (large size) Bulb shape: shouldered Bulb material: glass Two top caps

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