This single prong phono jack is assembled on a sturdy 1/16-inch (1.59mm) bakelite insulating plate, making it ideal for vintage radio chassis, phonograph pick-ups, and low-voltage signal connections. Designed to accept standard 1/8-inch (3.5mm) jack plugs, it features dual mounting holes spaced 11/16 inches (17.46mm) center-to-center for secure screw mounting.

The phenolic wafer base provides excellent dielectric isolation from metal chassis panels, while the nickel-plated center contact and ground lug ensure stable electrical conductivity. Rear solder tabs allow for clean, reliable point-to-point connections.