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(!!) (#1 37 Pair) 37 RCA NOS 1940's (7.3ma and 7.5ma)
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(!!) (#1 37 Pair) 37 RCA NOS 1940's (7.3ma and 7.5ma)
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(!!) (#1 37 Pair) 37 RCA NOS 1940's (7.3ma and 7.5ma)1 matched pair) 37 RCA NOS 1940's same build 1 tube) 7. 3ma Gm=1100 1 tube) 7. 5ma Gm=1000 Test parameters: Vplate=250V Vgrid= 18V Good Iplate Ma range = 6. 5 8ma Good Gm=1000 1100 (Filament=6. 3V @ 300ma, many think the 37 sounds better than the 76)
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Why choose thelockerguy wholesale?
1 matched pair) 37 RCA NOS 1940's same build
1 tube) 7.3ma Gm=1100
1 tube) 7.5ma Gm=1000
Test parameters:
Vplate=250V
Vgrid=-18V
Good Iplate Ma range = 6.5-8ma
Good Gm=1000-1100
(Filament=6.3V @ 300ma, many think the 37 sounds better than the 76)
(!!) (#1 37 Pair) 37 RCA NOS 1940's (7.3ma and 7.5ma)
Item no
:
47895892158
US$ 27.99
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1piece
Shipping Estimate
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Ships within 48 hours · Estimated delivery Jun 23 - Jun 28
US$40
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