B.D.C. Inc. - Locations
Distributor, Manufacturers' Rep
Distributor of frequency converters including frequency-to-analog converters & frequency-to-voltage converters. Services include 24-hour emergency services, preventive maintenance, inspection & testing, instrument calibration, efficiency analysis, combustion equipment commissioning & start-up, fabrication, design, installation supervision, system integration & engineering services. Converters are ISO 9001:2000 compliant.
www.gobdc.com/index.html

MCL, Inc. - Bolingbrook, IL
Manufacturer, Custom Manufacturer
High Power Amplifiers For Fixed & Transportable Satellite Communication Systems

Steiner Power Systems Sub. of Steiner Electric Co. - Elk Grove Village, IL
Distributor, Manufacturer, Custom Manufacturer, Service Company
ISO 9002 certified distributor of radio frequency (RF) amplifiers & converters. Services include repair, 24-hour motor repair & generator service, job-site delivery, application engineering, design & installation support, on-site startup & troubleshooting, mobile technical service, preventative maintenance, technical training, inventory management, chemical services, generator rental, engraving, product modification, integrated supply & 24/7 emergency services.
Brand Names: TB Woods

Continental Resources, Inc. - Wood Dale, IL
Distributor, Service Company
ISO 9001:2000 certified distributor of testing equipment. Testing equipment includes AC & DC power supplies, cables, calibrators, compliance test equipment, counters, data acquisition systems, fiber optic testers, hi-pot meters, impedance measurers, noise figure testers, optic accessories, oscilloscopes, power quality measurement equipment, probes, RF accessories, RF power measurers & wireless communication test equipment. Analyzers are available for measuring optical spectrum, audio, signal, telecom & logic.

Absolute Process Instruments, Inc. - Libertyville, IL
Manufacturer
ISO 9001:2000 certified manufacturer of custom & standard frequency to DC converters. Specifications of converters include input power ranging from 115 V AC to 230 V AC & 9 V DC to 30 V AC optional input, specific input ranging from 0 Hz to 20 KHz, 0-20 mA current & plus/minus 0 V DC to plus/minus 10 V DC output. Features of converters include hot-swappable plug-in design, input & output Loop Tracker LED, functional output test buttons, eight pin sockets & full input & output power isolation. Converters are capable of converting a square wave output & monitor & control motor & line speed. UL listed & CSA approved. Life time warranty.

Davis/Inotek - Bensenville, IL
Distributor, Manufacturer, Custom Manufacturer
100,000 Test, Measurement, Process & Control Instruments. NIST Traceable Calibration & Certification, All Performed In Compliance With ISO-9002, ISO Guide 25-17025 Standards. A Complete Line Of High-End Used & Rental Test Equipment

Aggreko Inc. - Lemont, IL
Distributor, Service Company
Distributor & rental of generators.

Siemens Infrastructure & Cities, Building Technologies - Buffalo Grove, IL
Manufacturer, Custom Manufacturer
Manufacturer of low voltage AC frequency converters with sensorless vector control & power range up to 250 kW at 350 hp. Universal models as well as specialist for pumps & fans. Protection & overload features standard.

Emssco, Inc. - Addison, IL
Manufacturer, Custom Manufacturer, Service Company
Motor Generator Sets & Frequency Changers. Custom Designs For All Applications. 50-60-400-415 Hertz. New, Rebuilt & Rentals. 100-600v, 4kw-500 kw