(!!!!) (Best RCA Single) 5687 RCA bronze plates NOS 1972 (35/36ma)
By Tube World
$ 59.99
1 low noise tube) 5687 RCA bronze plates NOS 1972
1 section) 35ma Gm=12,200
1 section) 36ma Gm=12,600
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 Single) 5687 RCA bronze plates NOS 1972 (35/36ma) "Pin It")