284D Amperex brass base low emission display tube

General Information

Recommended for SET DIY amps only

(284D was developed in 1937, replaced the 284A-B-C, is a variant of 242A WE, similar to 845 RCA with lower Iplate rating)

(40 watt plate dissipation, 50 watts using 2 tubes, Iplate max = 64ma, Vplate max = 1250VDC)

mu=4.8

Gm=2500