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
$249.91The NEW, RF Parts Company 3-500ZG and Taylor Tubes 3-500ZG tubes are the most rugged tubes of this type available. They are an improved version of the 3-500ZG offered by RF Parts Company, from 1993 to 2019. This newly revised version has had a failure rate of less than 0.05% during the three years that we have been testing, matching and selling them.
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
Our Six Month Warranty covers manufacturing defects in workmanship and material which includes the Anode, Filament, Grid and Glass. Please send an eBay Message to RF Parts Company with any issues, before you return a tube(s). The buyers' shipping charges shall be refunded if a returned tube(s) is replaced under warranty.
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3-500Z Eimac High-Mu Power Triode (Pull)
$259.91Out of stock
The Eimac 3-500Z is a compact power triode intended to be used as a zero-bias Class B amplifier in audio or radio-frequency applications.
- Filament: Thoriated Tungsten
- Voltage: 5.0 volts
- Current: 14.5 Amps
- Amplification Factor (Average): 160
Clean Used * No longer available for export
MFR: Eimac
SKU: 3-500Z-EI-PThis tube has been recently tested and meets all technical specifications. The Warranty period for this tube is NInety Days from the date of purchase, for the original customer only. Please follow the instruction insert for proper installation.
Made in the USA -
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3-500Z Eimac High-Mu Power Triode (NOS)
$349.91Out of stock
The Eimac 3-500Z is a compact power triode intended to be used as a zero-bias Class B amplifier in audio or radio-frequency applications.
- Filament: Thoriated Tungsten
- Voltage: 5.0 volts
- Current: 14.5 Amps
- Amplification Factor (Average): 160
New Old Stock * No longer available for export
MFR: Eimac
SKU: 3-500-EIThis New Old Stock (NOS) tube has been recently tested and meets all technical specifications. The Warranty period for this tube is Six Months from the date of purchase, for the original customer only. Please follow the instruction insert for proper installation.
Made in the USA -
3-500ZG/3-500Z RF Parts Company Transmitting Tube Matched Pair (2)
$499.91The NEW, RF Parts Company 3-500ZG and Taylor Tubes 3-500ZG tubes are the most rugged tubes of this type available. They are an improved version of the 3-500ZG offered by RF Parts Company, from 1993 to 2019. This newly revised version has had a failure rate of less than 0.05% during the three years that we have been testing, matching and selling them.
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-MPOur Six Month Warranty covers manufacturing defects in workmanship and material which includes the Anode, Filament, Grid and Glass. Please send an eBay Message to RF Parts Company with any issues, before you return a tube(s). The buyers' shipping charges shall be refunded if a returned tube(s) is replaced under warranty.
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3-500ZG, 3-500Z RF Parts Transmit Tube Matched Set of Three (3)
$749.91The NEW, RF Parts Company 3-500ZG and Taylor Tubes 3-500ZG tubes are the most rugged tubes of this type available. They are an improved version of the 3-500ZG offered by RF Parts Company, from 1993 to 2019. This newly revised version has had a failure rate of less than 0.05% during the three years that we have been testing, matching and selling them.
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-M3
Our Six Month Warranty covers manufacturing defects in workmanship and material which includes the Anode, Filament, Grid and Glass. Please send an eBay Message to RF Parts Company with any issues, before you return a tube(s). The buyers' shipping charges shall be refunded if a returned tube(s) is replaced under warranty.
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3-500ZG, 3-500Z RF Parts Transmit Tube One Year Warranty Matched Quad (4)
$999.91The NEW, RF Parts Company 3-500ZG and Taylor Tubes 3-500ZG tubes are the most rugged tubes of this type available. They are an improved version of the 3-500ZG offered by RF Parts Company, from 1993 to 2019. This newly revised version has had a failure rate of less than 0.05% during the three years that we have been testing, matching and selling them.
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
Our Six Month Warranty covers manufacturing defects in workmanship and material which includes the Anode, Filament, Grid and Glass. Please send an eBay Message to RF Parts Company with any issues, before you return a tube(s). The buyers' shipping charges shall be refunded if a returned tube(s) is replaced under warranty.
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3-500ZG RF Parts Transmit Tube One Year Warranty Matched Sextuplet (6)
$1,499.91The NEW, RF Parts Company 3-500ZG and Taylor Tubes 3-500ZG tubes are the most rugged tubes of this type available. They are an improved version of the 3-500ZG offered by RF Parts Company, from 1993 to 2019. This newly revised version has had a failure rate of less than 0.05% during the three years that we have been testing, matching and selling them.
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-M6Our Six Month Warranty covers manufacturing defects in workmanship and material which includes the Anode, Filament, Grid and Glass. Please send an eBay Message to RF Parts Company with any issues, before you return a tube(s). The buyers' shipping charges shall be refunded if a returned tube(s) is replaced under warranty.