Pinout

Pin #	Assignment
1	Heater (F1)
2	G1 Red Pin
10	G2 Red Pin
11	Red Pin
12	Heater (F2)

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.

B&K 490 / 467 Tester Info

Tester Model	Heater	Socket	G1 Voltage
B&K 490 / 467	6.3V	CR-10	50

Sencore CRT Tester Info

Tester Model	Heater	Socket	Bias	Video
CR-7000	6.3V	UA	36V	Video 1
CR-70	6.3V	UA	36V	VIDEO
CR-31	6.3V	-	B	N/A