Check the listing for details. Centralab 2507 Circular Selector Isolated Switch 3 Poles 3 Position. Condition: New. Listed at 14.99 USD. This vintage Centralab 2507 circular selector switch is a must-have for any enthusiast of vintage audio and video equipment. With three poles and three positions, it offers a versatile and convenient way to control your devices. The switch is made in the United States and is of high quality, ensuring reliable and long-lasting performance. Ideal for use in vintage audio and video equipment, this switch provides a classic and timeless solution to your control needs. Its circular design adds a touch of elegance to your device, while its easy-to-use interface makes it simple to operate. The Centralab 2507 switch is a great addition to any collection of vintage parts and accessories, and is sure to provide you with years of enjoyment. Comes with bill of sale from 1939