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1. #Rca victor radio tube console eye tube manuals#
2. #Rca victor radio tube console eye tube manual#
3. #Rca victor radio tube console eye tube full#

One of the earliest uses for this tube was to give a visual indication of radio-frequency signal strength to determine if you had tuned your radio accurately to a station. If the voltage on the electrode is at 0 volts relative to the target plate, the whole ring will illuminate, but as the electrode voltage drops, a gap appears whose size is relative to the voltage on the ray-control electrode.

The tube also contains a ray-control electrode near the target plate, which is negatively charged with respect to the plate itself, so that the electrons coming from the gun are repelled by the negative voltage, leaving an unilluminated gap known as the electron shadow. The target plate is coated with a fluorescent coating-in most cases, a green phosphor-so that when the electrons hit it, the target plate glows, which shows up as a ring of green on the top of the tube. The 6E5 has an electron gun in the tube that shoots a beam of electrons to the target, the cone-shaped plate at the top of the tube. The tube is basically a miniature cathode ray tube (the same technology present in all television sets until the advent of flat-screen TV), internally amplified by a built-in triode signal amplifier. The tube, whose technical name was electron-ray indicator, was more commonly known as a tuning indicator, and the first commercial iteration was the RCA 6E5, which debuted in 1935, under the trademarked name of ‘magic eye’ by which this type of tube is most recognized today. DuMont (who manufactured and sold the first commercially available and practical television set in the United States in 1938, a few months before RCA’s first set) developed a vacuum tube that gave a visual indication of the amplitude of an electronic signal. In the early 1930s, the American engineer Allen B.

#Rca victor radio tube console eye tube manual#

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#Rca victor radio tube console eye tube manuals#

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#Rca victor radio tube console eye tube full#

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