(!!) (Recommended Pair) 12HG7=12GN7A Sylvania NOS 1970 era (42ma and 43ma)

Category: SKU: TOY394649

$6.00 $19.99

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1 pair) 12HG7=12GN7A Sylvania NOS

1 tube) 42ma Gm=36,000

1 tube) 43ma Gm=34,400

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

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