JRP-5687WA Raytheon black plates used/good 1965-1966 (28/31ma)
By Tube World
$ 15.99
1 low noise tube) JRP-5687WA Raytheon black plates used/good 1966 in white box
28ma Gm=9700
31ma Gm=10,300
Good NOS mA range 30-35ma
Recommended for
Manley
Modwright
Audio Note
Ray Samuels
Ayon
Kondo
Mastersound
Audio Thrills
Loth
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