(!!) (BEST PAIR) 45 RCA NOS ST-14 1955 (31ma and 35ma)
$ 279.99
1 pair) 45 RCA NOS ST-14 (513=1955) in RCA boxes - no end flaps
1 tube) 35ma Gm=2200 slightly tilted glass - in white box
1 tube) 31ma Gm=2100 in white box
Tested on Amplitrex
Vplate=275V
Vgrid=-54.8V
Good used ma 25-30ma
Good used Gm 1500-1800
Recommended for:
Tektron
Deja Vu
Victor RE-36 1929
DIY
See more: vacuum tube
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 (BEST PAIR) 45 RCA NOS ST-14 1955 (31ma and 35ma) "Pin It")