High-Mu Triode - Sharp-Cutoff Pentode
Miniature type used in tv receivers having low-voltage B
supplies. The triode is used in sound-if, keyed-agc,
sync-separator, sync-amplifier and noise-suppression
circuits. The pentode is used as a video amplifier tube.
Requires a miniature 9-contact socket.
Preferred Substitutes ................... 8AW8
Substitutes ....................... 8AU8 8KS8