Description
281A Western Electric like new 1930’s (38ma)
281A Western Electric Balloon engraved base like new 1930’s – reboxed
38ma
Gm=1500
Vplate=150V
Vscreen=70V
Vgrid=-60
Moderate Power co-planar grid tetrode
Vplate max = 250V
Iplate max = 45mA
Vfil = 5V @ 1.6A