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  • An early (1900's) electron demostration tube.  High voltage is applied to the top and bottom contacts.  This type of tube lead to the development of X-rays.  This tube is photographed with x-rays.
    crooks-neg.jpg
  • An X-ray of Historic Audion vacuum tube.  This tube made in the 1920's was the first circuit used to amplify radio and television signals.  This tube proved critical for the development of television.  The Audion vacuum tube was invented in 1906 by Lee de Forest
    TVtube1FC.jpg
  • An X-ray of a vacuum tube.  Tubes were once commonly used in electronic devices to amplify a signal.
    tube1FC.jpg
  • Crookes tube. Invented by William Crookes (1832 - 1919) in the late 19th century.  This apparatus was used to investigate the path taken by electrons or cathode rays as they were called then.   In this experiment the electrons are emitted from a central disc towards the glass.  As the electrons collide with the glass they fluoresce.   The metal star pattern blocks the electrons causing a shadow on the glass.  Crookes showed from the resulting shadow that electrons travel in straight lines.  The overall glow of the apparatus is caused by the excitation of the remaining gas molecules in the tube.
    K08crookes0372.jpg
  • An X-Ray of a Photomultiplier tube.  A photomultiplier tube is used to detect very small light levels by converting photons into electrons then in turn multipling the number of electrons until the signal can be detected with convential electronics.
    x07-photomultiplier-tubeneg.jpg
  • The strong electric fields created by the tesla coil cause the gas in a neon emission tube to glow.
    K10teslane3833.jpg
  • An X-ray of a selection of vacuum tubes.  These tubes were once commonly used in electronic devices to amplify a signal.
    tubes4FC.jpg
  • An X-ray a Laser tube.  This is a helium neon laser tube with the high voltage leads.
    x07-laser-tubeHeNeFC.jpg
  • X-Ray of a CT tube.  CT (computed tomography) scan uses x-rays to build a three dimensional image of the structure inside a person.  This CT tube has a spinning anode made from tungsten and an electronic motor.
    K07x07ct-tube2.jpg
  • X-ray of a Vacuum Ionization Gauge Tube.  These Ionization Gauge Tubes are hot cathode gauges of the Bayard-Albert Type intended for pressure measurement from 10-3 Torr down to 3 x 10-10 Torr.  These gauges are common in high vacuum equipment used in research and industry.
    K07Vacuum-guage.jpg
  • An X-Ray of a flash tube. This particular flash is used to signal aircraft on a runway.
    K19Xaircraft-strobeB.jpg
  • A quack medical device used to restore hair, cure cancer, increase intelligence, and cure gout.  The device is actually a Tesla coil used to excite a tube filled with low pressure neon gas.  The device had no medical advantages.  This device was sold under a number of name including the Violet ray.  Sold from the 1930's until the late 1970's..
    K12-Quackmed6896.JPG
  • A quack medical device used to restore hair, cure cancer, increase intelligence, and cure gout.  The device is actually a Tesla coil used to excite a tube filled with low pressure neon gas.  The device had no medical advantages.  This device was sold under a number of name including the Violet ray.  Sold from the 1930's until the late 1970's..
    K12-Quackmed6905.JPG
  • A quack medical device used to restore hair, cure cancer, increase intelligence, and cure gout.  The device is actually a Tesla coil used to excite a tube filled with low pressure neon gas.  The device had no medical advantages.  This device was sold under a number of name including the Violet ray.  Sold from the 1930's until the late 1970's..
    K12-Quackmed6901.JPG
  • The inside of a magnetron removed from a microwave oven.  The magnetron is a device that creates microwave radiation. A magnetron consists of an electron tube surrounded by a magnet. As electrons are released from the heated cathode they are forced to take a spiral path to the anode by the magnetic field, creating microwaves. This magnetron creates a microwave radiation that is the same frequency as a water molecule vibrates.  When water is exposed to just the right frequency, the water molecules will gain kinetic energy and become hotter.
    K11-magnetron7111.jpg
  • A quack medical device used to restore hair, cure cancer, increase intelligence, and cure gout.  The device is actually a Tesla coil used to excite a tube filled with low pressure neon gas.  The device had no medical advantages.  This device was sold under a number of name including the Violet ray.  Sold from the 1930's until the late 1970's..
    K12-Quackmed6903.JPG
  • A quack medical device used to restore hair, cure cancer, increase intelligence, and cure gout.  The device is actually a Tesla coil used to excite a tube filled with low pressure neon gas.  The device had no medical advantages.  This device was sold under a number of name including the Violet ray.  Sold from the 1930's until the late 1970's..
    K12-Quackmed6900.JPG
  • The inside of a magnetron removed from a microwave oven.  The magnetron is a device that creates microwave radiation. A magnetron consists of an electron tube surrounded by a magnet. As electrons are released from the heated cathode they are forced to take a spiral path to the anode by the magnetic field, creating microwaves. This magnetron creates a microwave radiation that is the same frequency as a water molecule vibrates.  When water is exposed to just the right frequency, the water molecules will gain kinetic energy and become hotter.
    K11-magnetron7101.jpg
  • Scanning electron microscope image of a  mosquito larva (family Culicidae). The larva hatches and lives in water until it attains its adult form. It breathes air through its siphon tube (upper right), This image represents a field of view of 2 mm...
    K08SEMMosquito-larva51.jpg
  • An X-ray of glass tubes to show the relation of x-ray souce on objects.
    K15X-glass-tubes02.jpg
  • An X-ray of glass tubes to show the relation of x-ray souce on objects.
    K15X-glass-tubes01.jpg
  • An X-ray of glass tubes to show the relation of x-ray souce on objects.
    K15X-glass-tubes03.jpg
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Ted Kinsman

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