Fail:Klystron tube 1952.jpg

Selle eelvaate suurus: 800 × 210 pikslit. Teised eraldusvõimed: 320 × 84 pikslit | 1276 × 335 pikslit.

Algfail ‎(1276 × 335 pikslit, faili suurus: 57 KB, MIME tüüp: image/jpeg)

See fail ja sellest kastist allapoole jääv kirjeldus pärinevad kesksest failivaramust Wikimedia Commons.

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Lühikirjeldus

KirjeldusKlystron tube 1952.jpg	English: A 5 kW klystron vacuum tube, from an advertisement by Eitel-McCulloch Co. (Eimac) in a 1952 radio magazine. The klystron is a specialized linear beam transmitting tube used at high frequencies. This one was designed for use as the final amplifier in UHF television transmitters. The right end of the tube contains an electron gun, which emits a high energy beam of electrons which is absorbed by a collector electrode in the left end. A series of cavity resonators are installed along the tube. The UHF television signal to be amplified is applied by a coaxial cable to one resonator, called the "buncher". This causes the electrons to form bunches. The bunches excite a more powerful radio signal in a second cavity, called the "catcher", from which the output signal is taken. The source did not give any details about the tube. All the contacts on the tube are in the form of metal rings rather than pins as in ordinary vacuum tubes, to reduce the parasitic inductance, which can cause instability and parasitic oscillation at the high frequencies used. Alterations to image: Cropped out surrounding ad copy.
Kuupäev	juuli 1952
Allikas	Retrieved June 15, 2014 from Tele-Tech and Electronic Industries magazine, Caldwell-Clements Inc., Bristol, Connecticut, Vol. 11, No. 7, July 1952, p. 82 on American Radio History website
Autor	TeadmataUnknown author
Luba (Faili edasikasutus)	This image is from an advertisement for Eimac Corp. without a copyright notice published in a 1952 US magazine. In the United States, advertisements published in collective works (magazines and newspapers) are not covered by the copyright notice for the entire collective work. (See U.S. Copyright Office Circular 3, "Copyright Notice", page 3, "Contributions to Collective Works".) Since the advertisement was published before 1978 without a copyright notice, it falls into the public domain.

Litsents

This work is in the public domain in the United States because it was published in the United States between 1929 and 1977, inclusive, without a copyright notice. For further explanation, see Commons:Hirtle chart as well as a detailed definition of "publication" for public art. Note that it may still be copyrighted in jurisdictions that do not apply the rule of the shorter term for US works (depending on the date of the author's death), such as Canada (50 p.m.a.), Mainland China (50 p.m.a., not Hong Kong or Macao), Germany (70 p.m.a.), Mexico (100 p.m.a.), Switzerland (70 p.m.a.), and other countries with individual treaties.

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