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  2. EF Johnson Technologies - Wikipedia

    en.wikipedia.org/wiki/EF_Johnson_Technologies

    EF Johnson Technologies, Inc. is a two-way radio manufacturer founded by its namesake, Edgar Frederick Johnson, in Waseca, Minnesota, United States in 1923. [1] Today it is a wholly owned subsidiary of JVCKenwood of Yokohama, Japan. EF Johnson Technologies offers a wide range of equipment for use by law enforcement, firefighters, EMS, and military.

  3. Front panel - Wikipedia

    en.wikipedia.org/wiki/Front_panel

    System/360 Model 91 front panel IBM 1620 front panel Altair 8800 microcomputer front panel A CDC 6600 system console, a reaction [clarification needed] to the "blinkenlights" front panel. A front panel was used on early electronic computers to display and allow the alteration of the state of the machine's internal registers and memory. The ...

  4. Digitally controlled oscillator - Wikipedia

    en.wikipedia.org/wiki/Digitally_controlled...

    The VCO designs of the time still left something to be desired in terms of tuning stability. [2] Whilst this was an issue for monophonic synthesizers, the limited number of oscillators (typically 3 or fewer) meant that keeping instruments tuned was a manageable task, often performed using dedicated front panel controls.

  5. Control panel (engineering) - Wikipedia

    en.wikipedia.org/wiki/Control_panel_(engineering)

    A control panel is a flat, often vertical, area where control or monitoring instruments are displayed or it is an enclosed unit that is the part of a system [1] that users can access, such as the control panel of a security system (also called control unit).

  6. SimplexGrinnell - Wikipedia

    en.wikipedia.org/wiki/SimplexGrinnell

    SimplexGrinnell, a subsidiary of Johnson Controls, is an American company specializing in active fire protection systems, communication systems and testing, inspection and maintenance services. The company headquarters is in Boca Raton , Florida ; corporate sales and marketing offices are in Westminster , Massachusetts , and the company has ...

  7. Viking Aircraft Viking II - Wikipedia

    en.wikipedia.org/wiki/Viking_Aircraft_Viking_II

    The Viking II features a 48.4 m 2 (521 sq ft) parachute-style wing, two-seats-in-side-by-side configuration, tricycle landing gear and a twin-cylinder 50 hp (37 kW) Rotax 503 engine in pusher configuration. The three-cylinder 70 hp (52 kW) 2si 690-L70 liquid-cooled engine was a factory option. [1]

  8. Fix problems signing in to AOL Mail

    help.aol.com/articles/fix-problems-signing-in-to...

    Learn how to fix common problems singing in to AOL Mail.

  9. Hagström - Wikipedia

    en.wikipedia.org/wiki/Hagström

    Viking, Viking II and Viking IIP. A reissue of the Hagström Viking, the Viking and the Deluxe are identical except for the Deluxe having a flamed top, different inlays on the fingerboard and a different F-hole. The Viking II is a model which uses a bolt-on neck opposed to the Viking which uses a set neck. HJ-500 and the HJ-600.