RCA Radiotron 522 Vintage Large Transmitting / Power Vacuum Tube

RCA Radiotron 522 Vintage Large Transmitting / Power Vacuum Tube

Large vintage RCA Radiotron electron tube, marked “Made in U.S.A. 522.” Heavy-duty early electronic tube featuring a large clear glass envelope, substantial internal plate structure, top metal contact, and heavy multi-pin base. This style of tube was intended for high-power transmitting, industrial, laboratory, or related electronic equipment. Displays very well with strong RCA Radiotron markings and visible internal construction. Glass appears intact with normal age, dust, and storage wear. Untested and sold as a collectible/display or restoration component.

Item #46