FULL - WAVE RECTIFIER
Made in U.S.S.R
The Russian made National Electronics 5Y3 / 5Y3GT Vacuum Tube is a glass
octal type used in the power supplies of radio equipment
having moderate DC requirements. They require an octal
socket. Vertical tube mounting is preferred, but
horizontal opration is permissible if pins 2 and 8 are
in horizontal plane.
Electrical Data:
Heater Voltage ................................ 5.0 V
Heater Current ................................ 2.0 A
Preferred Substitutes .............. 5AX4 5AZ4 5R4
Substitutes .................................. 5U4