A high-gain ceramic triode for broad-band amplifiers

The use of broad-band amplifiers in telemetering application, high-definition radar, phase-sensitive radars, countermeasures, and jam-proof systems has shown the need for a very-high-gain low-noise tube. Many of these applications need a device capable of resisting mechanical and thermal shock as well as electrical transients. Optimum design of a tube of this type would result in the highest possible transconductance balanced against low values of input and output capacitances. Low lead inductance and grid-to-cathode transit time are also important parameters.