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Circuits: Obsolete & Discontinued
Sterling Services is an industry leader in selling and repairing Obsolete & Discontinued Circuits. We have been in the business since 1991.


Circuits defined by wikipedia.com is ìa closed path formed by the interconnection of electronic components through which an electric current can flow. The electronic circuits may be physically constructed using any number of methods. Breadboards, perfboards or stripboards are common for testing new designs. Mass-produced circuits are typically built using a printed circuit board (PCB) that is used to mechanically support and electrically connect electronic components.

Electronic circuits can display highly complex behaviors, even though they are governed by the same laws of physics as simpler circuits.

Electronic circuits can usually be categorized as analog, discrete, or mixed-signal (a combination of analog and discrete) electronic circuits.î

Sterling Services backs all of our discontinued and obsolete circuit sales and repairs with a one year warranty.

Major manufacturers include General Electric, Siemens, Cutler-Hammer, Mitsubishi, Omron, CTC, Telemecanique, Honeywell, Uticor, Nematron, Texas Instruments, Westinghouse, and Modicon.

Save 55 - 85%! Sterling Services PLC sales and PLC repairs are Guaranteed For Life! Unless otherwise stated, the products listed are reconditioned. Product photographs are representative, actual product photographs can be emailed upon request. Sterling Services is not an authorized distributor or representative of any manufacturer, brand or product listed, additionally trademarks, brand names and brands appearing on this website are the property of their respective owners. If you are interested in new products, please contact Sterling Services sales staff at 1-800-280-4602. Thank you for your business.