A new ceramic triode for VHF applications

For some time, the need has been apparent for a high-performance receiving tube to operate in the very-high-frequency (vhf) region up to 450 mc (megacycles per second) and to bridge the gap between available receiving tubes and high-performance transmitting tubes. This tube should be capable of operating as an oscillator, amplifier, or frequency multiplier. Desirable features of such a tube are that it have a low input power requirement, withstand high ambient temperatures, and be as small as possible. A reliable method of connecting the tube electrodes to lumped constant circuit components with minimum capacitance, should be provided.