Power Pentode
The 40KG6 Vacuum tube, also known as a PL509, is a
magnoval type used as a horizontal-deflection amplifier
in color tv receivers. It requires a magnoval 9-contact
socket.
Later on PL519 tubes replaced the 40KG6A and PL509 tubes.
All three tubes are compatible.
Electrical Data:
Heater Voltage ................................. 40 V
Heater Current ................................ 0.3 A
Preferred Substitutes .............. 40KG6, 40KG6A,
PL509, PL519