Radio Tubes

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1939 general electric vintage am wooden tube radio model gd51
$10.50
quality

1964 rca receiving tube manual book radio tv technical series rc 23 a5
$10.99
quality

vintage emerson 559 a lunch box style portable tube radio parts repair
$65.00
quality

vintage emerson portable tube radio model 646 for parts restore
$50.00
quality

rare old vintage vhtf rca 6ej4a electronic vacuum tubes new old stock
$8.99
quality

zenith g500 portable trans oceanic tube radio working
$259.00
quality

universal 201 a type tube magnavox company oakland california
$26.00
quality

vintage 1954 arvin model 852p ac dc portable tube radio works
$15.00
quality

vintage emerson flip open grey tube radio untested
$19.99
quality

vintage sparton bakelite tube radio 5 a7 chassis model 101 receiver for parts
$34.50
quality

vintage philco leather case tube radio untested
$19.99
quality

vintage radio westinghouse two tone brown beige portable tube radio untested
$19.99
quality

8072 vhf linear amplifier vacuum tube ge nos 1973
$80.00
quality

vintage zenith clock alarm tube radio m507c parts or restoration 5m03
$14.00
quality

vintage general electric tube radio alarm clock model 514 bakelite
$59.99
quality

vintage electronic raytheon tubes
$9.99
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western electric signal corps vti tube 1916 display only
$3.99
quality

philco vintage tube radio antique am police sw 40 120 beautiful
$75.00
quality

1 sylvania 6j5gt black plate tube 6j5 gt
$9.95
quality

vintage sylvania electronic tubes
$9.99
quality

vintage regal model c 527 tube clock radio alarm bakelite off white
$24.99
quality

emud t7 tube radio 1950s germany
$49.00
quality

caydon antique very early 1929 30 battery powered british tube radio receiver
$199.00
quality

vintage raytheon electronic tubes
$9.99
quality

zenith table top console tone tube am radio in working condition
$25.00
quality

vintage general electric electronic tubes
$9.99
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1 raytheon 6j5wgt tube jan black plate 6j5gt 6j5
$15.95
quality

antique 1920s magnavox telemegafone tube radio horn speaker lion head decal
$199.95
quality

vintage westinghouse tube radio h 124 little jewel
$198.00
quality

tube radio knobs
$9.99
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vintage 1938 emerson ax 217 wood cabinet tube radio simple and handsome radio
$145.00
quality

vintage electronic tubes
$9.99
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vintage emerson red tube radio plug it in it hums
$19.99
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vintage 1950s zenith model y513 tube radio works
$125.00
quality

1 vtg old eimac cim type model no 15e 15 e ham radio tube eitel mccullough inc
$69.94
quality

rca 3dk6 tube lot nos
$10.25
quality

huge pile mix premium tube f old ham radio military receiver guitar audio amp
$9.99
quality

huge pile mix miniature tube f old ham radio military receiver guitar audio amp
$9.99
quality

huge pile mix metal octal tube old ham radio military receiver guitar audio amp
$10.51
quality

vintage electronic tubes
$9.99
quality

nice 25 x 35 inch air coil old ham radio tube transmitter power amp tuner
$0.99
quality

ge 42kn6 nos tube
$6.00
quality

vintage tube fm radio tuner tuning bakelite knob 1 7 8 d shaft
$14.99
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vintage windsor shortwave broadcast radio tube type model no 695 working
$159.99
quality

vintage electronic tubes
$9.99
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mixed lot of nos and used vacuum tubes
$9.95
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vintage vacuum tube lot of 50 + tubes radio ham tv amp box 20
$9.95
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vintage vacuum tubes large bigger ones 30+ box 22
$9.95
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vintage electronic tubes
$9.99
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nice weird united usaf 583 high voltage rectifier f old ham radio radar tube
$0.99
quality

vintage electronic tubes
$9.99
quality

nice dual 385 pf variable capacitor f old ham radio tube receiver tuner
$13.50
quality

ceramic 7 pin transmitter vacuum tube socket ham radio
$3.50
quality

zenith wave magnet trans oceanic tube radio model l600lights updial moves etc
$100.00
quality

vintage truetone tube radio model d3265
$59.99
quality

vintage electronic tubes
$9.99
quality

c1920s crosley radio model 706 showbox vaccum tube for restoration
$95.00
quality

c1920s freshman masterpiece 5 tube battery operated radio for restoration
$75.00
quality

c1928 rca radiola 18 vacuum tube radio for restoration
$95.00
quality

c1927 stewart warner model 325 battery operated 5 tube receiving set untested
$95.00
quality

c1920s crosley metal case tube radio for restoration
$85.00
quality

c1920s atwater kent tube radio model 38 for restoration
$85.00
quality

c1928 eveready battery 6 tube radio receiver untested no tubes clean
$105.00
quality

c1920s wards airline enchanter lift top 5 tube radio receiver clean
$125.00
quality

vintage electronic tubes
$9.99
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nice dumont jan cdu 5fp7 5 crt old ham radio radar tube vector scope clock
$9.78
quality

nice dumont jan 5jp2 blue green p2 phosphor crt old ham radio radar scope tube
$4.25
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zenith radio 12 tube vintage 1940 art deco 12 s 471 mint antique restored in+out
$1,999.00
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vintage 1945 sonora rdu 209 wood cabinet tube radio w original cord works wow
$69.99
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vintage radio vacuum tube by cbs model 6022 or 12ba6 made in usa
$3.99
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antique zenith 6g001zyx long distance universal tube radio w manual
$99.99
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nos eimac cim type model no 15e 15 e ham radio tube eitel mccullough navy
$59.99
quality

vintage repair or salesmans electronic tube case 3 sided
$39.99
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rca radiola 18 ac 7 tube radio solid mahogany veneer front repair parts 1928
$99.00
quality

bantam tube 1930s hytron radio tube audio amp x2 pair
$35.95
quality

vintage 1948 arvin model 6640 wood case am tube radio
$9.00
quality

vintage 1965 zenith m511c clock alarm tube radio brown plastic case
$44.99
quality

general electric superheterodyne tube radio push button wheel control circa 1938
$200.00
quality


a trio of vintage vacuum tube 12dq6b untested
$50.00
quality

antique farnsworth corp tube radio model et 060
$29.99
quality

vintage 1940 zenith am sw tube radio model 6 s 439 working
$155.00
quality

vintage art deco 1930s zenith 5 s 320 tube am sw pushbutton tabletop radio
$299.00
quality

vintage northern electric 5200 baby champ tube radio from the 1940s
$49.99
quality

vintage stromberg carlson tube radio 601 a
$89.99
quality

zenith tube radios 1936 45 collector reference history adv model pics
$34.95
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vintage automatic shortwave tube radio wooden cabinet floor console 38h
$215.00
quality

vintage sears silvertone table top tube radio model 15 working condition
$20.00
quality

guild buccaneer treasure chest tube radio model 638b am fm 117v works 1965
$295.00
quality

3 pieces trio siemens cca germany 1960s gold pin matched tubes 6922 e88cc 6dj8
$695.00
quality

rca globe ux 171 a 71a vacuum tube
$50.00
quality

vintage 1930s westinghouse columette wr 10a am tube radio
$205.00
quality

ge 8950 vacuum tubes matched pair
$90.00
quality

1940 emerson 540 radio 4 tube bakelite midget art deco parts or repair
$74.99
quality

ge 6mj6 6lq6 6je6c vacuum tubes matched pair
$35.00
quality

rare nos new pair 10m mullard ecc88 6dj8 gold pin tubes great britain 1960 era
$495.00
quality

vintage zenith tube radio model 9h079 chassis parts repair restore
$49.97
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hallicrafters antique tube type radio model s 38
$49.97
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rare nos new pair 10m mullard ecc88 6dj8 gold pin tubes great britain 1960 era
$495.00
quality

vintage philco radio model 77 chassis tube parts repair restore
$39.97
quality

vtg zenith high fidelity am fm long distance tube radio h845 8h20 table model
$54.00
quality

bush tube radio ebs 62
$20.00
quality

sylvania 71a vacuum tubes matched pair
$50.00
quality

2x vt 99 6f8g rca nos matched valvola lampe tsf valve rhre tube
$109.99
quality

rca vintage tube radio
$275.00
quality

vintage rca ux 201 a detector amplifier tube w original box nos new old stock
$24.99
quality

vintage airline model 62 144 tube bc sw restored radio
$99.99
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Radio Tubes

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Vacuum Tube: How Does It Work? (Part 1)

How Does A Power Car Radio Antenna Work

Antenna is very essential for a radio. The air surrounding us in very silent. The activities that are electromagnetic cannot be captured by the ears of normal human being. All the waves including the one from TV, radio, communication through wireless and even transmissions of the internet are in this environment where we all live, sleep and eat. The human body is not affected by this kind of electromagnetic waves. And hence it does not have the capability to sense its travel. So it is very essential to use a device that could capture all these signals. But how do auto radio antennas work?

But what exactly is known by a radio antenna. A device which is is used for capturing this waves which wander the air surrounding us is known as an Antenna. An antenna has a tubular structure which is generally made up of stainless steel. Most of these antennas are generally telescopic. They can change their length and height as they wish. Longer antennas and lower frequency broad casts are required for transmission of AM radio.

We must realize that the atmosphere around us carries many waves. It carries the waves which are being transmitted. These are detected by a component in the radio. It is called antenna. It is made up of steel of stainless steel type. It is a tubular structure generally thin. They can be extended or reduced in length.

There is a major classification in this. Amplitude modulation and frequency modulation. The broadcast of AM signals happen at shorter frequencies and broadcast of FM signals happen at a higher frequency range. Only antennas that are long can pick up lower frequency signal and only antennas that are short are capable of broadcast of FM signals that happen at a higher frequency.

The antennas have good reception and detection capabilities. When you adjust the station in your radio, it detects the signal available in that frequency. At one point the reception is maximum. At that point the signal is clear.

There are lot of differences between an ordinary radio antenna and radio antenna of car because the car is not stationary. A heavy wire should be connected that runs through the body of the car that remains shielded. We may have doubt why shielding should be done. This is done to prevent interference of external waves. These external wave can be anything right from cell phone or even various power lines in the road. Only when this interference is stopped there can be smooth flow of radio waves to tuner from the antenna of the radio in the car.

Nowadays technology has become so advanced technology like presence of gears in the tubes of the antenna. These tubes are operated by means of a motor. This is to receive the signal by the antennas when the radio is being switched on. There are other differences also between stationary radio antenna and that of a radio antenna of a car that is moving because the steel used in construction of antenna in car is more stronger and rigid. Some vehicles are also trying to use the same technology used in mobile phone for transmission of radio wave signals. However this is still in experimentation stage only.

The article how do auto radio antennas work would have given you basic ideas on the types and working of antennas. The discovery of such new things not only makes our life simple, but also makes us realize that man can do wonders with his small brain. The creation will result only after a series of failures. It is the combined effort of the mind and the brain which makes people work on new things.

About the Author
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