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(!!!!) (Good Value Pair) 6SN7GTB GE coin-base NOS 1978 (6.2/6.8ma and 6.7/6.9ma)

(!!!!) (Good Value Pair) 6SN7GTB GE coin-base NOS 1978 (6.2/6.8ma and 6.7/6.9ma)

$ 49.99

1 matched pair) 6SN7GTB GE coin-base NOS 1978

1 tube) 6.2/6.8ma Gm=2250/2350 (MM) 1978, Sept. faded printing
1 tube) 6.7/6.9ma Gm=2350/2350 (JM) 1978, June

Matched on Amplitrex

 

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