The 6189 / 12AU7WA Vacuum Tubes are Miniature types used
as phase inverters or push-pull amplifiers in AC/DC
radio equipment and as multivibrators or oscillators in
industrial control devices. They are also used as
combined vertical oscillators and vertical-deflection
amplifiers and as horizontal-deflection oscillators in
TV receivers.
These tubes are also used in headphone preamplifiers.
They require miniature 9-contact sockets.
Electrical Data:
Heater Voltage ............................ 12.6/6.3 V
Heater Current ............................ 0.15/0.3 A
Substitute ...........................12AU7WA