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(!!!) (2nd Best Pair) 311B Amperex made in Russia NOS 1977 (31.8ma and 33.2ma) (very good construction)
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(!!!) (2nd Best Pair) 311B Amperex made in Russia NOS 1977 (31.8ma and 33.2ma) (very good construction)
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(!!!) (2nd Best Pair) 311B Amperex made in Russia NOS 1977 (31.8ma and 33.2ma) (very good construction)1 pair) 311B Amperex made in Russia NOS 1977 large getters excellent conditon 1 tube) 31. 8ma Gm=2850 1 tube) 33. 2ma Gm=2900 Tested on Amplitrex Vplate=180V Vscreen=135V Vgrid= 15V Good Ma = 30ma Good Gm = 2800 2900
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Why choose thelockerguy wholesale?
1 pair) 311B Amperex made in Russia NOS 1977 large getters - excellent conditon
1 tube) 31.8ma Gm=2850
1 tube) 33.2ma Gm=2900
Tested on Amplitrex
Vplate=180V
Vscreen=135V
Vgrid=-15V
Good Ma = 30ma
Good Gm = 2800-2900
(!!!) (2nd Best Pair) 311B Amperex made in Russia NOS 1977 (31.8ma and 33.2ma) (very good construction)
Item no
:
81836614182
US$ 59.99
Pay in 4 interest-free payments of $15.00 Learn more
Min. order:
1piece
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 10 - Jul 15
US$40
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