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Little Dot MK3 GE5654 6H6 vacuum tube amp, frequency response: 12H2-100KHz (-1dB), output impedance:
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6H6 Twin Diode Tube. MFR: RCA, GE, Sylvania, Zenith, Tung-Sol. Has a metal envelope. New old stock. SKU:6H6
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RCA 6H6 Vacuum Tube New Old Stock Excellent Condition Original Box Metal Vacuum Tube - Etsy Australia
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Canadian General Electric 6H6 110E/13 Twin Diode Vacuum Tube #UnboxingVintageElectronicComponents - YouTube
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