(!!!) (Best RCA Single) 5687 RCA bronze plates NOS 1972 (38.4/39.2ma)
$ 59.99
1 low noise tube) 5687 RCA bronze plates NOS 1972
1 section) 38.4ma Gm=13,200
1 section) 39.2ma Gm=12,900
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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