7AF7 Sylvania branded Raytheon NOS gray round plates NOS 1948 printed in 1952 (10/10ma) 1-2% section balance

7AF7 Sylvania branded Raytheon NOS gray round plates NOS 1948 printed in 1952

10ma Gm=2000

10ma Gm=1900

Good Ma range 8-9ma

Good Gm range 1800-2100

DUAL-TRIODE