Category:Lecher lines
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Lecher lines or Lecher wires are a pair of parallel wires or rods that serve as a parallel transmission line stub. Before frequency counters were developed in the 1960s, they were used to measure the frequency of radio waves by physically measuring the distance between nodes of the standing waves on the line, giving the wavelength. Called resonant stubs, they are also used as tank circuits for UHF oscillators and radio transmitters.
Media in category "Lecher lines"
The following 16 files are in this category, out of 16 total.
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120 MHz Lecher line oscillator 1934 closeup.png 389 × 785; 47 KB
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120 MHz Lecher line oscillator 1934.jpg 485 × 707; 56 KB
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200MHz UHF tube oscillator.jpg 490 × 707; 43 KB
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Brockhaus-Efron Oscillation 3.jpg 561 × 309; 28 KB
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Early Lecher line.png 985 × 503; 58 KB
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Experimental 60MHz Lecher line transmitter 1934.jpg 570 × 685; 62 KB
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Lecher line educational kit 1932 labeled.png 933 × 283; 29 KB
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Lecher line experiment 1907.jpg 1,338 × 1,346; 238 KB
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Lecher line on standoffs 1945.jpg 639 × 522; 87 KB
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Lecher wire frame.png 693 × 299; 28 KB
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Lecher wires and oscillator 1932.png 1,123 × 361; 23 KB
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Lecherlinewithtriodes.svg 822 × 1,412; 40 KB
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Poynting vector in a lecher line.gif 556 × 463; 13 KB
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UHF Barkhausen-Kurz Lecher line transmitter 1933 closeup.jpg 785 × 433; 74 KB
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UHF Barkhausen-Kurz Lecher line transmitter 1933.jpg 806 × 497; 45 KB
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Wavelength measurement by Lecher line.jpg 895 × 806; 123 KB
