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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3-500ZG, 3-500Z RF Parts Transmitting Tube, One Year Warranty
$219.91This 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
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8163 / 3-400Z Sylvania Transmitting Tube (NOS)
$329.00Out of stock
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3-500ZG/3-500Z RF Parts Company Transmitting Tube, One Year Warranty Matched Pair (2)
$439.91These 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
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3-500ZG, 3-500Z RF Parts Transmit Tube, One Year Warranty Matched Set of Three (3)
$659.91This 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
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3-500ZG, 3-500Z RF Parts Transmit Tube One Year Warranty Matched Quad (4)
$879.91These 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