Penta Laboratories Amplifier Replacement Parts

3-500ZG Vacuum Tube, High-Mu Power Triode, 500W, Ceramic Base, Each

Part Number: PLB-3-500ZG

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572B Pair Matched Vacuum Tubes, Power Triode, Direct replacement for the 811A, Set of 2

Part Number: PLB-572B-2

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572B Three Matched Vacuum Tubes, Power Triode, Direct replacement for the 811A, Set of 3

Part Number: PLB-572B-3

4.82 out of 5 stars ( 11 )

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