Full-Wave Rectifier
The 84 / 6Z4 Vacuum tube is a glass type used in
power supplys of automobile and ac-operated radio
receivers. They require a five-contact socket.
Electrical Data:
Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.5 A
Maximum Heater-Cathode Voltage ................ 500 V
Substitutes ........................... 84, 98, 6Z4
Please note that this 84 /6Z4 5 pin Vacuum Tube type is NOT
equivalent to the Chinese 6Z4 miniature 7 pin tube. There
is a major difference in size, pin structure and not to mention
the USA made 84 /6Z4 was manufactured to meet the needs of a 1930's
radio. Where as the Chinese 6Z4 is the size of an EL84 and is
used in modern day Headphone preamps like the Xian Sheng 708B.