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

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.

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. 

In addition, the newly designed ceramic pin base diffuses heat from the filament pins and extends the life of the socket. RF Parts Company is an established Distributor of New and Vintage Radio Frequency Equipment and Components.  We have the largest inventory of Vintage Transceivers, Ham Linears, Semiconductors, Modules, Vacuum Tubes, Watt Meters, Relays, Transformers, Capacitors, and similar electronic parts and equipment. 

Our One Year 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.