W. H. Cooke & Co., Inc.

Manufacturer of thermocouples and RTD's. Supplier of industrial controls, heaters, and sensors since 1963.

Phone:717-630-2222

Email: sales@whcooke.com

Acopian

In 1960, Acopian Technical Company began manufacturing low-cost, plug-in regulated power supplies that used vacuum tubes and plugged into a standard octal socket. Today, Acopian Technical Company remains a leading power supply manufacturer. The company is located in Easton, PA.