Tubes - Transmitting, Audio, Misc.

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 * New In the Box * No longer available for export
MFR: Eimac
SKU: 3-500-EI

Data Sheet

This 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.

The 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.

The 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.

The 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.

New Old Stock * No longer available for export

MFR: Amperex, France

SKU: 8163

The 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-MP

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.

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