(!) JAN-CRP-5687 Raytheon black plates used/very good around 1960 (33.5/37.6ma)
$ 29.99
1 low noise tube) JAN-CRP-5687 Raytheon black plates used/very good around 1960 in white box
33.5ma Gm=10,300
37.6ma Gm=11,500
Good Ma range 30-35ma
Recommended for
Manley
Modwright
Audio Note
Ray Samuels
Ayon
Kondo
Mastersound
Audio Thrills
Loth
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