Pinout

Pin #	Assignment
1	Focus (G3)
2	Focus (G4)
4	G1 Red Pin
5	Heater (F1)
6	Heater (F2)
7	G1 Blue Pin
8	Blue Pin
9	G2 Red Pin
10	Green Pin
11	G1 Green Pin
12	Red Pin

Note: If you only see one assignment or reused pin for G1 (or G2), it means there is only a single G1 (or G2) grid shared across all cathodes. This is called "common G1" (or "common G2"). In this case, when using a Universal Adapter (UA), you only have to hook up one G1 (or G2) lead on your tester to connect all cathodes' G1 or G2 properly.

Notes

G1 is not internally tired together on this tube. Therefore when using a tester with only one G1 connector, you need to bridge the other two G1 pins over to the probe so that all 3 are common. Otherwise the tester will not be able to show cutoff or emissions results. The Sencore pinout for this tube is wrong. The correct pinout is listed on this page (and in the service manuals of the monitors it's used in).

B&K 490 / 467 Tester Info

Tester Model	Heater	Socket	G1 Voltage
B&K 490 / 467	6.3V	-	-

Sencore CRT Tester Info

Tester Model	Heater	Socket	Bias	Video
CR-7000	6.3V	UA	52V	Video 2
CR-70	6.3V	UA	36V	VIDEO
CR-31	6.3V	-	B	N/A