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(!!!) (Best RCA Pair) 5687 RCA bronze plates NOS 1972-1976 (38.4/39.2ma and 34.5/39.5) (similar Gm)
(!!!) (Best RCA Pair) 5687 RCA bronze plates NOS 1972-1976 (38.4/39.2ma and 34.5/39.5) (similar Gm)
$ 109.99
1 low noise pair) 5687 RCA bronze plates NOS 1972-1976 same build
1 section) 38.4/39.2ma Gm=13,200/12,900 (1972)
1 section) 34.5/39.5ma Gm=12,000/13,200 (1976)
Good NOS Ma range 30-35ma
Recommended for
Manley
Modwright
Audio Note
Ray Samuels
Ayon
Kondo
Mastersound
Audio Thrills
Loth
See more: vacuum tube
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 (Best RCA Pair) 5687 RCA bronze plates NOS 1972-1976 (38.4/39.2ma and 34.5/39.5) (similar Gm) "Pin It")