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About RF Cafe

Kirt Blattenberger - RF Cafe Webmaster

Copyright: 1996 - 2024
    Kirt Blattenberger,


RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while tying up your telephone line, and a nice lady's voice announced "You've Got Mail" when a new message arrived...

All trademarks, copyrights, patents, and other rights of ownership to images and text used on the RF Cafe website are hereby acknowledged.

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Innovative Power Products Combiners / Dividers

Production Machinery
Manufacturers & Services

These companies make the machines that are used to produce the products designed by engineers. As a newly ordained member of the half-century club who has been in the defense contracting and commercial design and production field for nearly 30 years, I can remember the days when most electronics companies had in-house machining capabilities.

I used to love going down to the machine shop to watch the lathes, end mills, and other precision tools turn out parts for torpedo nose cones, airborne radar system chassis and antenna steering units, and many other assemblies. I witnessed the slow, steady metamorphosis where the shops were turned into empty chambers. Only a few benchtop prototyping and repair tolls remained. It was a sad thing to watch. I even remember when companies like General Electric had their own in-house PC board fabrication equipment. 

Now, most of that work is farmed out to contract houses. They do an excellent job, but the engineers and technicians do not have the opportunity to see their creation converted from paper (a computer screen nowadays) to a physical part. Sure it is probably best to concentrate specialties for efficiencies, but just as having a car that you can actually do your own work on deepens your knowledge of the vehicle, being able to see the product development process run from concept through to production adds a dimension to your professional experience that cannot be gained otherwise.

Acu-Rite | 800-344-2311 | Jamestown, NY
Provides the machine tool industry with the finest quality readout systems, precision glass scales and CNC controls.

Allied Machinery | 562-789-8600 | Santa Fe Springs, CA
Specializes in the repair & sales of metal fabricating equipment, punch presses, shears and press brakes.

Baileigh Industrial | 920-684-4990 | Manitowoc, WI
Quality machine tools and fabrication equipment including benders, drill presses, grinders and sanders, ironworkers and punching, lathes, metal forming and shaping, milling machines, notchers, press brakes presses, roll benders, saws, shears, sheet metal equipment, tubing and pipe equipment.

Black Bros. Co | 800-252-2568 | Mendota, IL
Laminating machines, adhesive spreaders, roll coaters, rotary laminators and air pod presses.

Bourn & Koch | 815-965-4013 | Rockford, IL
Manufactures precision machine tool products including gear cutting machines, grinders, checkers, VTL's, multispindles, machining centers, lathes.

Bridgeport (Hardinge) | 607-734-2281 | Elmira, NY
Vertical & horizontal machining centers, 5-axis machining center, knee mills, grinders, drills.

Clemco Industries Corp | 636-239-0300 | Washington MO
Manufacturer of air-powered blast equipment including portable pressure blast machines, and manual and automated cabinets for use with recyclable blast media.

CS Unitec | 800-700-5919 | Norwalk, CT
Electric, hydraulic, and pneumatic power tools for construction and industry including drill presses, grinders, portable magnetic drills, concrete core drilling machines, portable band saws & hacksaws.

Dake Johnson | 800-937-3253 | Grand Haven, MI
Hydraulic presses, arbor presses, bench presses, tire presses, laboratory presses, drill presses, belt grinders, power hammer, horizontal band saws, vertical band saws, mitering band saws and cold saws.

Dreis & Krump (Chicago) Manufacturing Company | 708-258-1200 | Peotone, IL
Hydraulic press brakes, press brake tooling, hand brakes, bending rolls, power leaf brakes, hydraulic notchers, mechanical presses.

E.G. Heller's Son | 800-233-0929 | Tarzana, CA
Supplier of metal fabricating equipment including plate bending rolls, angle roll machines, press brakes, shears, ironworkers, tube benders, rebar benders and more.

Empire Abrasive Equipment | 215-752-8800 | Langhorne, PA
Specializes in the design and manufacture of air-blast equipment including automated systems, basket blasters, blast cabinets, modified cabinets, blast rooms, portable systems.

Engineered Abrasives | 708-389-9700 | Alsip, IL
Manufacturers automated blast finishing and shot peening equipment including blasting machines, abrasive blast conveyors, table sandblasting equipment, CNC abrasive blast equipment, dust collectors, shot peening cabinets, air deburring machines, pressure vessel systems.

Ganesh Machinery | 888-894-7475 | Chatsworth, CA
Manual mills, lathes, CNC plus mills, bed mills, plus lathes, used machines.

Guyson Corp | 866-979-7602 | Saratoga Springs, NY
Designers and builders of cleaning, finishing and surface preparation machinery including parts washing systems and blasting equipment.

The Jet Pulverizer Co. | 800-670-9695 | Moorestown, NJ
Jet pulverizing equipment and custom grinding services.

Moore Tool Company | 203-366-3224 | Bridgeport, CT
Manufactures jig grinders, diamond drum lathes and ultra-precision special purpose equipment, as well as remanufacturing and retrofitting of a variety of machine tools.

Progressive Technologies | 800-968-0871 | Grand Rapids, MI
Specializes in designing and manufacturing superior systems and services for pneumatic abrasive grit sand blasting, shot peening, thermal spray coating, and ultra high pressure water jet coating removal applications.

Pro Tools | 813-986-9000 | Tampa, FL
Manufacturer of tube bending machinery, bead rollers, pipe notchers, sheet metal brakes.

Thermion | 360-692-6469 | Silverdale, WA
Manufacturer of metallizing systems - twin wire arc spray equipment used in applying thermal sprayed coatings.

Ultra Sonic Seal | 203-270-4816 | Newtown CT
Ultrasonic plastics bonding equipment including bench-top ultrasonic Welders, power supplies, electric presses, OEM Ultrasonic Welding Kits, components and actuators, hand held welders, spin welders, linear vibration welders, hot plate welders.

Union Process | 330-929-3333 | Akron, OH
Manufactures a broad line of particle size reduction equipment such as wet and dry grinding Attritors and small media mills, in laboratory and production sizes.

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