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    B9G valve holder

    Bretwood valve holder

    Ceramic valve holder for acorn type valves

    Ceramic insulated 4 pin valve holder

    Parex Screened Grid Valve Holder for Type S Valves

    W.B. 9-pin valve holder with carton

    4 pin valve holder

    Insulated valve holder

    W.B. 5 pin valve holder with carton

    W.B. 7 pin valve holder with carton

    International octal valve holder

    Parex Screened Grid Valve Holder for type L valves

    5 pin valve holder, for mounting valve horizontal

    B9A valve holder

    Mazda octal valve holder

    Side contact valve holder

    Benjamin clearer tone anti-microphonic valveholder

    1927

    Aermonic valve holder model A

    1927

    2 German valve holders

    2 German valve holders

    Pair of Parex valve holders for screened grid, double plugged valves, by Paroussi, .. London with original packing carton.

    Pair of Parex valve holders for screened grid

    Benjamin anti microphonic 4 pin valve holder with carton

    Benjamin anti microphonic 4 pin valve holder

    Lissen low capacity, low loss valve holder with original packing carton

    Lissen low capacity, low loss valve holder

    The Science Museum Group

    Locomotion
    Locomotion
    National Railway Museum
    National Railway Museum
    National Science and Media Museum
    National Science and Media Museum
    Science and Industry Museum
    Science and Industry Museum
    Science and Innovation Park
    Science and Innovation Park
    Science Museum
    Science Museum
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