(!!) (Good Value PAIR) 1619 RCA NOS 1942-1943 (44ma and 45.2ma)

1 pair) JAN-1619=VT-164 RCA NOS 1942-1943

1 tube) 44.0ma Gm=4100

1 tube) 45.2ma Gm=4250

Matched on Amplitrex

Vplate=300V

Svcreen=250V

Vgrid=

Good Ma = 44-50ma

Good Gm = 4000

(1619=Quick heating 2.5 Volt filament 6L6, slightly derated to 15 watts)