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(!) (- Best Pair) 12HG7=12GN7A RCA clear top NOS (42ma and 43ma)

(!) (- Best Pair) 12HG7=12GN7A RCA clear top NOS (42ma and 43ma)

$ 19.99

1 pair) 12HG7=12GN7A RCA clear top NOS 1970

1 tube) 43ma Gm=29,500

1 tube) 42ma Gm=25,000

Matched on Amplitrex

  

(12HG7=ruggedized frame-grid version of 12BY7A, uprated to 10 watts)

Pentode

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