Tetrode Electron Tube, P/N 8169 / 4CX3000A

The EIMAC 81691/4CX3000A is a ceramic/metal power tetrode designed to be used as a Class ABf linear amplifier in audio or radio-frequency applications. Its low inter-modulation distortion characteristics make it especially suitable for single-side-band service, where it will produce a minimum power output of 5000 watts in Class ABf service with inter-modulation distortion at least 32 dB down for 3rd order products and 37 dB down for 5th order products. The tube is also recommended for use as a Class C rf power amplifier and plate-modulated rf power amplifier. It is forced-air cooled, with a maximum anode dissipation rating of 3500 watts