1-800-RFPARTS (1-800-737-2787) 1-760-744-0700 (USA) ORDERS: rfp@rfparts.com 435 S PACIFIC ST SAN MARCOS, CA 92078

3-500ZG Transmitting Tubes

The RF Parts 3-500ZG™ is a compact power triode intended to be used as a zero-bias Class AB2 amplifier in audio or radio-frequency applications. Operation with zero grid bias simplifiers assocated circuitry by eliminating the bias supply. In addition, grounded-grid operation is attractive since power gain as high as twenty can be obtained with the 3-500ZG™ in a cathode-driven circuit.

3-400Z and 3-500Z Tube Comparison

FULLY 100% TESTED AND "BURNED IN" AT THE RF PARTS FACILITY IN SAN MARCOS, CALIFORNIA.  SO, JUST "PLUG AND PLAY".

Plate caps, heat radiators and clips

RF Parts offers plate caps, heat radiators and clips for the 3-500Z and the 3-400Z

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  1. 3-500ZG, 3-500Z RF Parts Transmitting Tube, One Year Warranty

    3-500ZG, 3-500Z RF Parts Transmitting Tube, One Year Warranty

    $219.91

    This tube is a Heavy Duty Graphite Anode version of the original Eimac 3-500Z, and it has a stronger Anode stem-support to add to the tube's ruggedness and stability.  The Graphite Anode, Grid, and Filament are virtually the same as the Graphite version last offered by Eimac, and is interchangeable with this vastly improved transmit tube. 

    MFR: China

    SKU: 3-500ZG-RFP

  2. 8163 / 3-400Z  Amperex Transmitting Tube (NOS)

    8163 / 3-400Z Amperex Transmitting Tube (NOS)

    $329.00

    Out of stock

    New Old Stock * No longer available for export

    MFR: Amperex, France

    SKU: 8163


  3. 8163 / 3-400Z Sylvania Transmitting Tube (NOS)

    8163 / 3-400Z Sylvania Transmitting Tube (NOS)

    $329.00

    Out of stock

    Limited 90 Day warranty
    New Older Stock * No longer available for export
    MFR: Sylvania, USA
    Note: Picture for reference only

     

    Made in the USA
  4. 3-500ZG/3-500Z RF Parts Company Transmitting Tube, One Year Warranty Matched Pair (2)

    3-500ZG/3-500Z RF Parts Company Transmitting Tube, One Year Warranty Matched Pair (2)

    $439.91

    These tubes are a Heavy Duty Graphite Anode version of the original Eimac 3-500Z, and it has a stronger Anode stem-support to add to the tube's ruggedness and stability.  The Graphite Anode, Grid, and Filament are virtually the same as the Graphite version last offered by Eimac, and is interchangeable with this vastly improved transmit tube. 

    MFR: CHINA

    SKU: 3-500ZG-RFP-MP

  5. 3-500ZG, 3-500Z RF Parts Transmit Tube, One Year Warranty Matched Set of Three (3)

    3-500ZG, 3-500Z RF Parts Transmit Tube, One Year Warranty Matched Set of Three (3)

    $659.91

    This tube is a Heavy Duty Graphite Anode version of the original Eimac 3-500Z, and it has a stronger Anode stem-support to add to the tube's ruggedness and stability.  The Graphite Anode, Grid, and Filament are virtually the same as the Graphite version last offered by Eimac, and is interchangeable with this vastly improved transmit tube. 

    MFR: China

    SKU: 3-500ZG-RFP-M3

  6. 3-500ZG, 3-500Z RF Parts Transmit Tube One Year Warranty Matched Quad (4)

    3-500ZG, 3-500Z RF Parts Transmit Tube One Year Warranty Matched Quad (4)

    $879.91

    These tubes are a Heavy Duty Graphite Anode version of the original Eimac 3-500Z, and it has a stronger Anode stem-support to add to the tube's ruggedness and stability.  The Graphite Anode, Grid, and Filament are virtually the same as the Graphite version last offered by Eimac, and is interchangeable with this vastly improved transmit tube. 

    MFR: China

    SKU: 3-500ZG-RFP-MQ

6 Item(s)