1 low noise tube) JAN-5687WA Raytheon bronze plates used/tests like new 1969 in white box
41.5ma Gm=12,000
43.5ma Gm=12,300
Good Ma range 30-35ma
Recommended for
Manley
Modwright
Audio Note
Ray Samuels
Ayon
Kondo
Mastersound
Audio Thrills
Loth
$12.00 $39.99
1 low noise tube) JAN-5687WA Raytheon bronze plates used/tests like new 1969 in white box
41.5ma Gm=12,000
43.5ma Gm=12,300
Good Ma range 30-35ma
Manley
Modwright
Audio Note
Ray Samuels
Ayon
Kondo
Mastersound
Audio Thrills
Loth
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