Medium-Mu Twin triode
The 5814A vacuum tube is a miniature type used in a wide
variety of applications including mixers, oscillators,
multivibrators and synchronizing amplifiers in industrial
control equipment. This tube is a computer-rated variant
of a 12AU7, as indicated by the (A) suffix. It has an
increased heater current and requires a miniature 9-contact
socket.
Electrical Data:
Heater Voltage ........................... 12.6/6.3 V
Heater Current ............................ 0.3/0.6 A