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Catalog

Showing 55–72 of 130 items

  • 4CX5000R / 8170W

    More information coming soon.

  • 4CX7500A

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  • 572B

    The Penta Laboratories is a power triode designed for use as a RF Oscillator, RF Power Amplifier and audio frequency modulator. The 572B is a direct replacement for the 811A, but has a graphite anode for increased performance and reliability.

    $89.95
  • 572B Matched Pair

    The Penta Laboratories is a power triode designed for use as a RF Oscillator, RF Power Amplifier and audio frequency modulator. The 572B is a direct replacement for the 811A, but has a graphite anode for increased performance and reliability.

    $179.90
  • 572B Matched Quad

    The Penta Laboratories is a power triode designed for use as a RF Oscillator, RF Power Amplifier and audio frequency modulator. The 572B is a direct replacement for the 811A, but has a graphite anode for increased performance and reliability.

    $359.80
  • 572B Matched Trio

    The Penta Laboratories 572B audio tube for sale is a power triode designed for use as a RF Oscillator, RF Power Amplifier and audio frequency modulator. The 572B audio tube amplifier pack is a direct replacement for the 811A, but has a graphite anode for increased performance and reliability.

    $269.85
  • 5868

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  • 5C22

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  • 5CX1500A

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  • 5CX1500A

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  • 5CX1500B

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  • 6146B

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  • 6L6GC

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  • 6SN7GT

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  • 6T51

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  • 7092

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  • 7211

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  • 7322

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Showing 55–72 of 130 items