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2. RadioShack - Wikipedia

   en.wikipedia.org/wiki/RadioShack

   RadioShack (formerly written as Radio Shack) is an American electronics retailer, which was established in 1921 as an amateur radio mail-order business. Its original parent company, Radio Shack Corporation, was purchased by Tandy Corporation in 1962, shifting its focus from radio equipment to hobbyist electronic components. At its peak in 1999 ...

3. Realistic (brand) - Wikipedia

   en.wikipedia.org/wiki/Realistic_(brand)

   The Realistic DX-60 is a multiband radio. The radio receives 3 MHz to 27 MHz AM shortwave in three bands, 26.965 MHz through 27.405 MHz HF CB in one band, 540 kHz to 1620 kHz standard AM broadcast in one band, and 87 MHz to 108 MHz monaural standard broadcast FM. The DX-60 existed in two versions, model 12-764 and a nearly identical but ...

4. TRS-80 - Wikipedia

   en.wikipedia.org/wiki/TRS-80

   Tandy/Radio Shack TRS-80 Model I. In the mid-1970s, Tandy Corporation's Radio Shack division was a successful American chain of more than 3,000 electronics stores. Among the Tandy employees who purchased a MITS Altair kit computer was buyer Don French, who began designing his own computer and showed it to the vice president of manufacturing John V. Roach, Tandy's former electronic data ...

5. Powered speakers - Wikipedia

   en.wikipedia.org/wiki/Powered_speakers

   An active full-range loudspeaker. Powered speakers, also known as self-powered speakers and active speakers, are loudspeakers that have built-in amplifiers.Powered speakers are used in a range of settings, including in sound reinforcement systems (used at live music concerts), both for the main speakers facing the audience and the monitor speakers facing the performers; by DJs performing at ...

6. List of loudspeaker manufacturers - Wikipedia

   en.wikipedia.org/wiki/List_of_loudspeaker...

   PMC speakers: United Kingdom Polk Audio: United States ProAc: United Kingdom PSB Speakers: Canada QSC Audio Products: United States Quad Electroacoustics: United Kingdom (brand) Radio Shack: United States RCF audio: Italy Rectilinear Research Corporation: United States Rega Research: United Kingdom Renkus-Heinz: United States ReVox: Switzerland ...

7. List of TRS-80 and Tandy-branded computers - Wikipedia

   en.wikipedia.org/wiki/List_of_TRS-80_and_Tandy...

   The Model 4's new hardware features included a larger display screen with 80 columns by 24 rows, inverse video, and an internal audio speaker. Its keyboard had three function keys and a control key. It used an all-new operating system derived from the advanced Model III LDOS 5, licensed from Logical Systems, now christened TRSDOS Version 6.