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  2. Regency TR-1 - Wikipedia

    en.wikipedia.org/wiki/Regency_TR-1

    TR-1, circuit board and casing. Exhibit of Deutsches Museum, Munich 22.5 Volt battery used in the Regency TR-1 (AA battery for comparison shown on left) The TR-1 is a superheterodyne receiver [2] [11] with four n-p-n germanium transistors and one diode. It contains a single transistor converter stage, followed by two intermediate-frequency ...

  3. Ton of refrigeration - Wikipedia

    en.wikipedia.org/wiki/Ton_of_refrigeration

    12,000.00 Btu IT /h. 2,593.90 ft⋅lbf/s. A ton of refrigeration (TR or TOR), also called a refrigeration ton (RT), is a unit of power used in some countries (especially in North America) to describe the heat-extraction capacity of refrigeration and air conditioning equipment. It was originally defined as the rate of heat transfer that results ...

  4. Transistor radio - Wikipedia

    en.wikipedia.org/wiki/Transistor_radio

    [14] One year after the release of the TR-1 sales approached the 100,000 mark. The look and size of the TR-1 were well received, but with only four transistors the sound quality was poor, and the reviews of the TR-1's performance were typically adverse. [12] [11] The Regency TR-1 was patented [15] by Richard C. Koch, former Project Engineer of ...

  5. Lockheed U-2 - Wikipedia

    en.wikipedia.org/wiki/Lockheed_U-2

    First flight. 1 August 1955; 69 years ago (1955-08-01) The Lockheed U-2, nicknamed " Dragon Lady ", is an American single-engine, high altitude reconnaissance aircraft operated from the 1950s by the United States Air Force (USAF) and the Central Intelligence Agency (CIA). It provides day and night, high-altitude (70,000 feet, 21,300 meters ...

  6. Type 1 regulatory T cell - Wikipedia

    en.wikipedia.org/wiki/Type_1_regulatory_T_cell

    Type 1 regulatory T cell. Type 1 regulatory cells or Tr1 (TR1) cells are a class of regulatory T cells participating in peripheral immunity as a subset of CD4+ T cells. Tr1 cells regulate tolerance towards antigens of any origin. Tr1 cells are self or non-self antigen specific and their key role is to induce and maintain peripheral tolerance [1 ...

  7. TR-1 Temp - Wikipedia

    en.wikipedia.org/wiki/TR-1_Temp

    The TR-1 Temp (Russian: Темп-С, Temp-S, meaning 'Speed') was a mobile theatre ballistic missile developed and deployed by the Soviet Union during the Cold War. It was assigned the NATO reporting name SS-12 Scaleboard and carried the industrial designation 9M76 and the GRAU index 9К76. A modified version was initially identified by NATO as ...

  8. 9th Reconnaissance Wing - Wikipedia

    en.wikipedia.org/wiki/9th_Reconnaissance_Wing

    With the new aircraft's arrival, the Air Force activated the 4029th Strategic Reconnaissance Training Squadron on 1 August 1981 to train all TR-1 and U-2 pilots. The TR-1s were transferred to the newly activated 17th Reconnaissance Wing in October 1982. A descendant of the U-2, the Lockheed-built TR-1 would gather tactical reconnaissance data ...

  9. Tri-R KIS TR-1 - Wikipedia

    en.wikipedia.org/wiki/Tri-R_KIS_TR-1

    Rich Trickel. Introduction. 1990s. Status. Production completed. Number built. At least 33. The Tri-R KIS TR-1 is an American homebuilt aircraft that was designed by Rich Trickel and produced by Tri-R Technologies of Oxnard, California, introduced in the 1990s. When it was available the aircraft was supplied as a kit for amateur construction.