International

International
Showing 1 - 18 of 18 items
  • $US12.00

    International

    Best value miniature glass double triode preamp tubes manufactured by International in Yugoslavia. These 9 pin tubes come with gray plates, top round getters, and four stout copper posts. They are printed in white 12AU7/ECC82 IC YUGOSLAVIA, and are boxed in standard blue boxes marked INTERNATIONAL C SERVICEMASTER ELECTRON TUBE 12AU7 ECC82. Best value miniature glass double triode preamp tubes...

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  • $US4.00

    International

    In Stock
  • $US5.00

    International

    In Stock
  • $US6.00

    International

     Double triode glass tubes manufactured in the United States by International. These 8 pin loctal based tubes are designed for voltage amplifier service. They are delivered with black plates, top getters, and they are printed in white with logo INTERNATIONAL SERVICEMASTER U.S.A. They are also glass engraved 14F7. Boxes are standard blue International...  Double triode glass tubes manufactured in the United...

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  • $US4.00

    International

     Fine audio output pentodes manufactured in the United States by International.. These 9 pin miniature glass tubes, with a plate dissipation of over 10 watts, come with black ribbed plates, stout internal supports, and top halo getters. They are printed in white INTERNATIONAL SERVICEMASTER, coded 922 882, and glass etched 16GK6 U.S.A. Boxes are standard...  Fine audio output pentodes manufactured in the United...

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  • $US7.00

    International

    In Stock
  • $US7.00

    International

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  • $US9.00

    International

    In Stock
  • $US5.00

    International

    Amazing beam power amplifier tubes manufactured in the United States by International. These fine triode pentode glass tubes come with 9 pin bases, black plates and top round getters. They are also glass etched 50FY8 with dot code. They are printed in white INTERNATIONAL SERVICEMASTER U.S.A. 922-56, and come in standard International blue boxes printed... Amazing beam power amplifier tubes manufactured in the...

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  • $US8.00

    International

     Fine miniature glass pentode tubes manufactured in the United States by renowned International. These 9 pin tubes, designed as wide band high frequency amplifiers for mobile communications equipment, are glass etched 6BA6 U.S.A. with dot code, and come with gray plates and top getters. They are printed in white 6660/6BA6 INTERNATIONAL SERVICE MASTER...  Fine miniature glass pentode tubes manufactured in the...

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  • Sale!
    $US4.00 $US7.00

    International

    Quality miniature glass 9-pin pentodes manufactured in Japan by International. These fine remote cut-off pentode tubes possess a very high mutual conductance (GM), and are designed for intermediate frequency amplification in television receivers. Tubes with gray slotted plates, and top halo getter, are printed in white 6EH7/EF183 INTERNATIONAL C... Quality miniature glass 9-pin pentodes manufactured in...

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  • Sale!
    $US2.00 $US5.00

    International

    High quality double triode miniature glass 7-pin tubes, manufactured in US by International Electronics Corporation. These tubes are designed for service as mixers at frequencies as high as 600 Mc/s, with a mutual conductance of 5,300 micro mhos at a plate current of 8.5 mA, with four vertical copper posts, gray plates, and top D-getters. Tubes are... High quality double triode miniature glass 7-pin tubes,...

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  • $US5.00

    International

    In Stock
  • $US5.00

    International

    Top quality glass high mu triode amplifier tubes manufactured in the United States by renowned International. These 8 pin loctal based tubes with metal bases come with chrome tops and black plates. They are printed in white with International logo, INTERNATIONAL SERVICEMASTER 7C4 U.S.A. and coded 922-118. Boxes are standard International blue printed 7B4. Top quality glass high mu triode amplifier tubes...

    In Stock
  • $US7.00

    International

    Excellent quality double diode triode tubes from the United States by renowned International. These fine audio tubes, of shoulder type glass construction, similar to 285, PH285 and British Military CV2549, come with 6 pin bases. They are printed in white INTERNATIONAL SERVICEMASTER 85 U.S.A. coded 922-87, and are 1980's production, glass etched 85 FIVRE,... Excellent quality double diode triode tubes from the...

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  • $US15.00

    International

    Excellent audio pre-amp tubes manufactured in England by International. Excellent audio pre-amp tubes manufactured in England by...

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  • $US9.00

    International

    Tough NOS half-wave rectifier tubes UY41/31A3, manufactured either in Holland or Germany. Tough NOS half-wave rectifier tubes UY41/31A3,...

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Showing 1 - 18 of 18 items