(!!!) 286A Western Electric Engraved Base NOS 1930”s (6.6ma)

286A Western Electric “”engraved base”” NOS 1930”s in white box, large getter

6.6ma

Gm=1200

Variable-mu voltage amplifier pentode with cathode

Vfil = 2V @ 1.6A

Vplate=180

Iplate = 5.5-6ma

Gm=1100-1200