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1 Pair) 71A RCA/Cunningham Radiotron used/tests like new 1930' same build in white boxes
1 tube) 24.5ma Gm=1800
1 tube) 26.0ma Gm=1800 slightly taller
Tested on Amplitrex
Vplate=180V
Vgrid=-38V
Good Ma = 20ma
Good Gm = 1600-1700
Ships within 48 hours · Estimated delivery Aug 16 - Aug 21
US$40
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