The RCA 7554 is a UHF pencil power triode for use at up to 5 GHz and at heights of up to 100,000 feet. The main application would be military.![](../pics/aaa1881a.jpg)
The anode on the left, ceramic insulator, control grid, ceramic insulator, cathode and finally the heater wires. The 7554 would be mounted in a co-axial cavity and probably operated with a grounded grid.![](../pics/aaa1881b.jpg)
The RCA name and Made in USA. ![](../pics/aaa1881c.jpg)
The copper anode with seal and silver plating.![](../pics/aaa1881d.jpg)
The heater connections and two stubs for internal mountings.The pencil envelope is six mm in diameter and, excluding the base pins, is 35 mm tall.Reference: Data-sheet. Type 7554 was first introduced in 1959. See also 1959 adverts. |