Diode
The 16AQ3 / XY88 Vacuum tube is a miniature type used as
booster diodes in line-time-base circuits of
transformerless TV receivers. They require a miniature
9-contact socket. The 16AQ3 tube was first manufactured in
1975 by RCA.
Electrical Data:
Heater Voltage ................................ 16.4 V
Heater Current ............................... 0.6 A