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(!!!) (Best Overall Pair) 286A Western Electric "top printing" mesh-plate NOS 1942-1945 (6.4ma and 6.6ma)

$ 199.99
 
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1 pair) 286A Western Electric "top printing" mesh-plate NOS 1942-1945, very large getters 

1 tube) 6.4ma Gm=1200

1 tube) 6.4ma Gm=1200

 

Variable-mu voltage amplifier pentode with cathode

Vfil = 2V @ 1.6A

Vplate=180

Iplate = 5.5-6ma

Gm=1100-1200

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