National/Greenstone 4CX20000C

Eimac 4CX20000C is a ceramic/metal tetrode intended for use as a VHF power amplifier. It has a type of internal mechanical structure that results in high RF operating efficiency. Low RF loss in this operating structure authorizes full evaluations to 110 MHz. The 4CX20,000C provides high gain in FM broadcast service and is also recommended for linear RF power amplifier service. The anode is rated for 20 kilowatts of dissipation with forced air cooling and incorporates a compact and highly efficient cooler of the new design.