d a tubes

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d a tubes

114 links - and 2 categories

Antennas : 2M
  • The Cycloid Dipole Antenna - A 2 meter antenna made of copper tubes, offering circular polarization
    [ Hits: 1940 | Votes: 15 | Rating: 7.2 ]
Antennas : 6M : 6 meter J-Pole Antenna
  • 6 Meter Homemade J-Pole Antenna - A homemade j-pole antenna for six meters band, designed to work on local repeaters, and working on the 52-53 MHz. Includes a list of needed materials and detailed description on assembling the copper tubes used to build this antenna.
    [ Hits: 254 | Votes: 3 | Rating: 4.67 ]
Antennas : Magnetic Loop
  • Mag Loops for HF - Small antennas by KH6HAK, including 6 meter magneti loop antenna made with copper tubes.
    [ Hits: 704 | Votes: 1 | Rating: 1 ]
Antennas : Masts and mounts
  • Aluminium Push Up Mast - A DIY aluminium push up mast project. The final mast includes 7 aluminium tubes with 6 cable clamps
    [ Hits: 358 | Votes: 3 | Rating: 6.67 ]
Antennas : Stealth
  • Balcony Antenna for 7 10 14 MHz - A project for a balcony antenna that works on 7 10 14 MHz made by 2 PVC tubes coiled with insulated copper wire, a solution for restricted lots.
    [ Hits: 2480 | Votes: 2 | Rating: 9.5 ]
  • Practical Balcony Version of an Old Military Car Antenna - The antenna almost repeat the design of the Car Antenna however instead of aluminum tubes it was used copper wire in plastic insulation in diameter of 2- mm (12 AWG).
    [ Hits: 390 | Votes: 2 | Rating: 7.5 ]
Manufacturers : Tubes & Semiconductors
  • Greenstone USA - GREENSTONE USA leader in the Vacuum Industry manufacturing products such as Vacuum Tubes, Vacuum Capacitor, Vacuum Relays, Vacuum Contactors and Vacuum Interrupters.
    [ Hits: 234 | Votes: 2 | Rating: 9.5 ]
Operating Aids : History
  • Evolution of Car Radios: From Marconi to Motorola - his historical account traces the development of car radios from Marconi's mobile wireless telegraph station on a steam engine vehicle in 1901 to Motorola's iconic car radio models in the 1930s. It highlights key milestones such as Alfred Grebe's radio-telephone experiments on Long Island and the introduction of Marconi-Phone 8 radios by the Daimler Company in England. The narrative explores technological advancements, including the transition from TRF to Super-Heterodyne circuitry and the integration of push-button controls. The evolution from vacuum tubes to transistors and compact discs is also documented, showcasing the continuous innovation in automotive entertainment systems.
    [ Hits: 62 | Votes: 1 | Rating: 1 ]
Shopping and Services : Electronic Components
  • New Sensor - Tubes and electronic components online shop. Dealer for svetlana, sovtek, tesla, mullard and tungsol tubes
    [ Hits: 251 | Votes: 0 | Rating: 0 ]
Shopping and Services : Regional : USA
  • W5GRG.NET The Finest in Used Ham Gear - Amateur Radio Amateur Radio Manuals & Books Computer Books & Programs Computer Hardware Rare & Hard to Find Books amateur radio,electronics ,electronis parts,tubes, amplifiers,towners, beam antennas and more
    [ Hits: 258 | Votes: 0 | Rating: 0 ]
Technical Reference : Amplifiers : HF Amplifiers
  • Home Made 813 Amp - An home made RF Amplifier project that allows near full power output from 813 tubes
    [ Hits: 1447 | Votes: 2 | Rating: 6 ]
Technical Reference : Amplifiers : VHF Amplifiers
  • 6m Amplifier with 2x Gi7b - A 50 MHz stable and small power amplifier, suitable for portable and domestic use. This RF Power amplifier delivers 900W with used pair of tubes primary installed into amplifier.
    [ Hits: 125 | Votes: 0 | Rating: 0 ]
Technical Reference : Vacuum tube
  • How to Find out if an Electronic Tube Is Good - How to check and test electronic tubes, investiganting sealants and making external checks or verifing internal filaments of the tube.
    [ Hits: 300 | Votes: 0 | Rating: 0 ]
  • What is a Vacuum Tube - Read all the key details about Vacuum Tubes or Thermionic Valves that provided the foundations for today's electronics technology.
    [ Hits: 281 | Votes: 2 | Rating: 10 ]

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