The HF60-S is a 60 watt general purpose triode made by Amperex that is similar to the HF60. The difference in unknown so the characteristics of the HF60 are given.
Length = 6.62" Diameter = 2.50"
Max voltage = 1600
Max current = 150 ma
Fil voltage = 10
Fil current = 2.5 amps GOTO INDEX