Three AMPEREX 6083 New Old Stock 7 Gold-Plated Pins Septar Transmitting Pentode Tubes.

The NOS-6083 is a five-electrode tube designed for use as a radio-frequency power amplifier, oscillator and audio-frequency amplifier.  The anode is capable of dissipating 45 watts, and cooling is accomplished by radiation. The cathode is a coated unipotential cathode. Maximum ratings apply up to 60 megacycles.

These three New-Old-Stock 6083 vacuum tubes with their gold-plated pins were never used, but the original boxes are in fair condition with tears and missing flaps.

MADE IN ITALY.