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  2. 3-way lamp - Wikipedia

    en.wikipedia.org/wiki/3-way_lamp

    A 3-way lamp, also known as a tri-light, is a lamp that uses a 3-way light bulb to produce three levels of light in a low-medium-high configuration. A 3-way lamp requires a 3-way bulb and socket, and a 3-way switch. In 3-way incandescent light bulbs, each of the filaments operates at full voltage. Lamp bulbs with dual carbon filaments were ...

  3. (Closest Thing To) Perfect - Wikipedia

    en.wikipedia.org/wiki/(Closest_Thing_To)_Perfect

    "(Closest Thing To) Perfect" is a song recorded by American R&B singer Jermaine Jackson. It was released as a single to the soundtrack from the 1985 film, Perfect . [ 4 ] A music video was filmed featuring Jamie Lee Curtis as an aerobics instructor and John Travolta .

  4. Multiway switching - Wikipedia

    en.wikipedia.org/wiki/Multiway_switching

    In building wiring, multiway switching is the interconnection of two or more electrical switches to control an electrical load from more than one location.A common application is in lighting, where it allows the control of lamps from multiple locations, for example in a hallway, stairwell, or large room.

  5. Buescher Band Instrument Company - Wikipedia

    en.wikipedia.org/wiki/Buescher_Band_Instrument...

    Buescher Truetone B ♭ (professional): There were a wide variety of Truetone models, many of them custom made for professional musicians. Louis Armstrong recorded with a Buescher Truetone 10-22R in the late 1920s. Buescher Aristocrat: Before the Selmer buyout, this was a professional trumpet a step down from the Truetone.

  6. Ringtone - Wikipedia

    en.wikipedia.org/wiki/Ringtone

    Truetone: A truetone, also known as realtone, Jayliar tone, superphonic ringtone, is an audio recording, typically in a common format such as MP3 or AAC. Truetones, which are often excerpts from songs, became popular as ringtones.

  7. Kliegl Brothers Universal Electric Stage Lighting Company

    en.wikipedia.org/wiki/Kliegl_Brothers_Universal...

    [33] [29] The takeover of the incandescent lamp would be inexorable. [36] [37] [29] From about 1908, motion picture studios were using the company's floor-stand arc lamps, which allowed for point-source lighting, including some of the first low-light effects; the shadow produced by the two pairs of carbon rods can be seen in some early films. [38]

  8. Audio power - Wikipedia

    en.wikipedia.org/wiki/Audio_power

    For most audio applications more power is needed at low frequencies. This requires a high-power amplifier for low frequencies (e.g., 200 watts for 20–200 Hz band), lower power amplifier for the midrange (e.g., 50 watts for 200 to 1000 Hz), and even less the high end (e.g. 5 watts for 1000–20000 Hz).

  9. NEMA wattage label - Wikipedia

    en.wikipedia.org/wiki/NEMA_wattage_label

    NEMA wattage labels are standardized labels defined by the National Electrical Manufacturers Association (NEMA) used on street lighting fixtures to indicate the wattage of the lamp for maintenance purposes. Additionally, various colors are used to identify what type of lamp the fixture uses.