HK-57

The HK-57 is a 50 watt pentode designed for VHF applications with full ratings to 200 MHz. Introduced by H&K in 1947. Very similar to the 5994 except the anode pin is longer.

Length = 4.06" Diameter = 2.37"
Max voltage = 3000
Max current = 150 ma
Fil voltage = 5
Fil current = 5 amps         GOTO INDEX