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The Mechanical Workshops Wilhelm Albrecht (MWA) (German: Mechanische Werkstätten Wilhelm Albrecht) were founded in 1926 by the innovator, engineer, and entrepreneur, Wilhelm Albrecht [1] in Berlin-Tempelhof. The logo he designed became an internationally known trademark for complete device systems for image-synchronous sound recording and ...
Parts books were often issued as microfiche, though this has fallen out of favour. Now, many manufacturers offer this information digitally in an electronic parts catalogue. This can be locally installed software, or a centrally hosted web application. Usually, an electronic parts catalogue enables the user to virtually disassemble the product ...
All speaker drivers have a means of electrically inducing back-and-forth motion. Typically there is a tightly wound coil of insulated wire (known as a voice coil) attached to the neck of the driver's cone. In a ribbon speaker, the voice coil may be printed or bonded onto a sheet of very thin paper, aluminum, fiberglass or plastic.
Speaker: SPS Stall Protection System: SQ Squelch: Or: SQL SR sunrise: SRM structural repair manual SRS Speed Reference System: SS sunset: SSCV/DR Solid-state cockpit voice/data recorder See flight recorder: SSCVR Solid-state cockpit voice recorder See flight recorder: SSFDR Solid-state flight data recorder See flight recorder: SSR Secondary ...
The company offered a free 400-page catalog filled with descriptions of vast quantities of electronic gear, including microphones, speakers, tape recorders, and other components. [2] In 1981, Lafayette Radio entered Chapter 11 bankruptcy and sold its New York area stores to Circuit City. [1]
In a loudspeaker, a phase plug, phasing plug or acoustical transformer is a mechanical interface between a speaker driver and the audience. The phase plug extends high frequency response because it guides waves outward toward the listener rather than allowing them to interact destructively near the driver.
The Concert Grand was the crown jewel of Bozak speaker systems since its introduction in 1951. [6] This refrigerator-sized speaker system originally contained four B-199 12" woofers, one 8 Ohm B-209 6" midrange driver and eight tweeters. [7]
This model soon became the SM-400. SWR then pursued development of a speaker cabinet to accompany its amps. In 1986, SWR released the Goliath, a 4 x 10" full-range speaker cabinet with a built-in horn tweeter, a first for bass cabinets. The company's name was changed to SWR Sound Corporation on 1 December 1997 as part of a restructuring plan.