Zaerix 6C5 Triode medium mu
The 6C5 is a general-purpose triode designed for service as an oscillator, detector, or amplifier.
With the exception of capacitance, the electrical characteristics are identical to the 6C5G and 6C5GT.
It is similar in characteristics to the 6C6, 6J7, and 57 with triode connection.
The thin metal tube envelope is 25 mm in diameter and, excluding the IO base pins, is 50 mm tall.
The 6C5 was first introduced in 1936.