3-500ZG RF Parts High-Mu Power Triode

The 3-500ZG is a transmitting vacuum tube designed for use in high-power RF (radio frequency) applications. 

The tube uses a filament to heat up the cathode, which then emits electrons into the tube. The electrons are accelerated towards the anode, where they interact with the electric field to produce an amplified RF signal. The tube is capable of handling high voltages and currents, making it suitable for use in high-power RF applications.

The "G" in the 3-500ZG description indicates a graphite anode. This provides improved thermal dissipation, compared to metal anodes, allowing the tube to handle higher power levels. 

The 3-500ZG tube is a high-quality and reliable transmitting tube that offers a good balance of power handling, frequency range, and efficiency. It is a popular choice for use in a variety of high-power RF applications where reliable and efficient power amplification is required.

RF Parts Company has been in business for 50 years, and 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.