The 4037A is a 6.25 watt octal-based pencil triode with a mu of 30 that was designed for high frequency up to 2000 MHz. It was designed to largely replace the obsolete 2C40 lighthouse tube.
Length = 2.87" Diameter = 1.31"
Max voltage = 360
Max current = 25 ma
Fil voltage = 6.3
Fil current = .145 amp GOTO INDEX