Full-Wave Rectifier
The 5R4GYA Vacuum tube is a glass octal type used in
the power supplies of radio equipment having high DC
requirements. It requires an octal socket and was
first manufactured by RCA in 1962. Vertical tube
mounting is preferred but horizontal mounting is
permisible if pins 1 and 4 are in a vertical plane.
Electrical Data
Heater Voltage ................................ 5.0 V
Heater Current ................................ 2.0 A