Tubes-Store → Single triode → 6S7B MELZ single triode miniature tube(01)

Tubes-Store → Single triode → 6S7B MELZ single triode miniature tube(01)

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Amazon: Matched Pair MELZ 6N8S / METAL BASE AND HOLE PLATE 6SN7 1578 vacuum tube : Musical Tubes-Store → Single triode → 6S7B MELZ single triode miniature tube NOS Tube Store: MELZ 1578 / 6H8C / 6SN7 Black Plates w/Round Holes USSR