RF Parts offers plate caps, heat radiators and clips for the 3-500Z and the 3-400Z. The NEW, RF Parts Company 3-500ZG tubes are the most rugged tubes of this type available. These tubes …

3-500Z HIGH MU POWER TRIODE. The Elmac 3-500Z is a compact power triode intended to be used as a zero-bias Class AB 2 amplifier in audio or radio-frequency applications. Operation …

The E[MAC 3-500Z 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 simplifies …

We offer the highest quality 811A, 572B, and 3-500 tubes. All tubes are visually inspected and 100% tested in a high power, high voltage, dynamic tester. The tester measures peak …

The 3-500Z tube stands as one of the most versatile and powerful transmitting tubes in the amateur radio and industrial sectors. This robust triode tube combines exceptional durability …

Virtually an exact copy of the Eimac 3-500ZG in both mechanical and electrical characteristics. RF PARTS 3-500ZG easily represents the best value for the price. All tubes receive 100% RF …

Placed matched pair of 3-500ZG's in my SB-220, and they worked better than the original Eimac tubes. 40 watts carrier drive in - 400 watts out. DC power in vs power out for 72% efficiency in …

Ameritron 3-500Z Replacement Power Tubes are available for all-purpose Amateur Radio service. These heavy-duty, graphite-plate 3-500Zs are an updated version of the venerable vacuum …