1 low noise tube) JRP-5687WA Raytheon bronze plates used/good early 1960”s in white box
33.0ma Gm=9400
31.6ma Gm=9600
Good Ma range 30-35ma
Recommended for
Manley
Modwright
Audio Note
Ray Samuels
Ayon
Kondo
Mastersound
Audio Thrills
Loth
$7.80 $25.99
1 low noise tube) JRP-5687WA Raytheon bronze plates used/good early 1960”s in white box
33.0ma Gm=9400
31.6ma Gm=9600
Good Ma range 30-35ma
Manley
Modwright
Audio Note
Ray Samuels
Ayon
Kondo
Mastersound
Audio Thrills
Loth
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