tube

tube

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• The Cycloid Dipole Antenna - A 2 meter antenna made of copper tubes, offering circular polarization
  [ Hits: 1939 | Votes: 15 | Rating: 7.2 ]

• Short Delta Loop for 40m - A youtube video of a Short Delta Loop antenna, only 8,5 meters per side. This project use a loading coil of 56,7 uH for electrical matching.
  [ Hits: 3941 | Votes: 15 | Rating: 6.46 ]

• Helical Antenna Design Calculator - Helical antennas invented by John Kraus give a circular polarized wave. They are one of the easiest to design. Find a tube with a circumference equal to one wavelength, and wrap wire in a helix spaced a quarter wavelengt
  [ Hits: 2162 | Votes: 16 | Rating: 6.63 ]

• 2 Elements 20m Delta Loop - A 2 elements delta loop antenna for 14 MHz with a MMana simulation file, dimensions, pictures of this aluminium tube based delta loop antenna, and matching system details.
  [ Hits: 591 | Votes: 1 | Rating: 6 ]

• 5 Band Indoor Magnetic Loop - A indoor magnetic loop antenna that covers 20 17 15 12 and 10 meters band with a 3 meter lenght of 22 mm copper tube by G4IZH
  [ Hits: 9176 | Votes: 22 | Rating: 5.82 ]

• 2m Copper J Pole antenna Video - This is the construction of a copper cactus style j-pole antenna.
  [ Hits: 930 | Votes: 0 | Rating: 0 ]

• 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 ]

• The Tube Thing - The Vacuum Tube Page with a lot of stuff about tubes
  [ Hits: 269 | Votes: 0 | Rating: 0 ]

• TW Antennas Assembly - TransWorld Antennas TW2010 Traveler HF Portable Vertical Antenna setup instructions
  [ Hits: 662 | Votes: 0 | Rating: 0 ]
• Trans World Antenna setup - A video domonstrating how fast can be the setup of a Trans World Antenna
  [ Hits: 619 | Votes: 1 | Rating: 1 ]

• Introduction to ICOM 7300 - In this youtube video G8GKC M0KKW and 2E0IAJ from Icom UK give a global overview of the ICOM IC-7300 HF 50 70MHz Software Defined Radio transceiver
  [ Hits: 1228 | Votes: 2 | Rating: 10 ]

• Yaesu FT 897 fan mods - A video demonstrating SMD board inside FT-897D to makes the two fans run only when temperature threshold is reached
  [ Hits: 1093 | Votes: 1 | Rating: 2 ]

• Wouxun KG-UV8D Cross-Band Repeater - Crossband repeat operations on the Wouxun KG-UV8D dual band multifunctional two-way radio. This demo explains differences in the cross band repeater functions of the KG-UV8D.
  [ Hits: 937 | Votes: 1 | Rating: 7 ]
• Wouxun KG-UV8D Programming - A tutorial video on manual programming the Wouxun KG-UV8D handheld transceiver
  [ Hits: 966 | Votes: 1 | Rating: 10 ]

• 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 ]

• Dentron DTR-2000L restoration - The Dentron DTR2000L is an HF amplifier from the 1980 era. It uses a single 8877/3CX1500A7 tube to produce about a kilowatt of RF output. In this page NR7N includes info on operation, restoration and mods.
  [ Hits: 704 | Votes: 4 | Rating: 9.75 ]

• Measure Impedence of Coax Cables - This video shows one way to use a scope and function generator to measure the length of a piece of coax transmission line as well as estimate its impedance
  [ Hits: 1093 | Votes: 3 | Rating: 6.67 ]

• CW Practice Oscillator - One Tube Code Practice Oscillator
  [ Hits: 417 | Votes: 1 | Rating: 1 ]

• How to make a low end SWR/ Watt Meter reading PEP power - Building a PEP Power circuit for all analogue watt-meter
  [ Hits: 1683 | Votes: 6 | Rating: 7.5 ]

• 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 ]

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