The Eimac 3CX1500D7 is a compact power triode with an anode dissipation rating of 1500 watts. This tube features a filament designed to operate at 5 volts, a value that is common to other power grid tubes and allows a single 3CX1500D7 to replace two 3-500Z in many applications. The high-Mu grid employed in this tube permits operation as a linear amplifier in class AB with zero or minimal bias voltage. The 3CX1500D7 may also be used in class B or C with additional bias voltage where it provides good efficiency, making it ideal as an rf amplifier for industrial and scientific applications.