1 low noise pair) CK-5687WB Raytheon black plates NOS 1970”s
1 tube) 36.5/35.0ma Gm=11,400/10,900
1 tube) 38.5/35.5ma Gm=11,700/10.900
Matched on Amplitrex
Good NOS Ma range 30-35ma
7119 and 6900 is best sub for a 5687 and visa versa
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