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Antennas : 70cm
- 6 element UHF Yagi antenna
- A standard 6 elements design scaled for UHF application. All material used in this project are easily obtainable tubes and rods which is limited within a total budget of $18.
[Hits: 1792 | Votes: 3 | Rate: 5.33] Antennas : Magnetic Loop
- Soft copper Tube Loops
- Air conditioning soft copper tubes are perfect for loop construction. If you want to try a loop you must have an air variable capacitor or a vacuum variable capacitor. Article by PY1AHD
[Hits: 488 | Votes: 0 | Rate: 0.00] Antennas : W3DZZ
- Making the W3DZZ Video
- A video guide of how to make a high performance,low cost HF multiband antenna for the radio amateur and shortwave enthusiast.
Fantastic performance and low cost.
Video made by Mike (M0RRQ)
[Hits: 2640 | Votes: 5 | Rate: 5.40] DX Resources : Beacons : Beacon stations
- The VE3TO Radio Beacon Transmitter
- The VE3TO beacon transmitter is a hybrid, consisting of both modern solid state and old vacuum tube technology working on 10132.0 kHz
[Hits: 276 | Votes: 2 | Rate: 10.00] DX Resources : SOTA Ham Radio : Resources
- AmateurLogic.TV
- Amateur radio videocast, your source for practical technology hacks, mods, and tips. Available on youtube or google video
[Hits: 565 | Votes: 8 | Rate: 9.87] Internet and Radio : Video
- YouTube - W7NWH's D-STAR Videos
- Videos by W7NWH including D-STAR system demos
[Hits: 1337 | Votes: 5 | Rate: 7.40] - IV3YER YouTube channel
- Amateur radio dedicated channell in youtube
[Hits: 232 | Votes: 5 | Rate: 8.20] - YouTube - What the HELL?
- Hellschreiber is an interesting ham radio mode developed back in the 20s. It is a bit strange and different, but fun. I'll explain what it is, then I make a couple contacts during the Hellschreiber contest.
[Hits: 686 | Votes: 3 | Rate: 7.00] - YouTube - Amateur (ham) radio balloon launch
- High-altitude ham radio balloon launch by several louisianna universities
[Hits: 1421 | Votes: 8 | Rate: 3.37] - HamRadioTube
- A site like Youtube but designed for for the Amateur Radio community
[Hits: 515 | Votes: 19 | Rate: 8.00] - D-Star video demonstration
- KE7FTE, N7QQU and W9ERT show us the "drag and drop" flexibility of the Icom D-STAR System.
[Hits: 333 | Votes: 0 | Rate: 0.00] - YouTube - DL0DTV Digital ATV
- Digital amateur tv and mobile transmitting around Friedrichshafen and Lake Konstanz to be seen in Hall A. Heinz DC6MR is presenting the news, novelties and technical aspects of DATV.
[Hits: 458 | Votes: 0 | Rate: 0.00] Manufacturers : Towers and Accessories
- DK9SQ Antennen
- Walter Spieth Antennen offer, Duoband-Portable-Log. Periodic 2m/70cm, Vertical-Loop-Antenna,10-40 Meter and PortableW3DZZ-Antenna as well as fiberglass tubes
[Hits: 1435 | Votes: 0 | Rate: 0.00] Operating Modes : D-STAR
- D-Star on YouTube
- D-star videos, introduction to d-start, real examples on YouTube
[Hits: 348 | Votes: 1 | Rate: 10.00] Radio Equipment : VHF-UHF Handhelds : Yaesu VX-2 Shopping and Services : Ham Radio Stores
- AMP Lady
- Authorized factory sales and service center for Emtron. Repair service on all tube type amps HF Vhf
Uhf from Palm Bay FL
[Hits: 1120 | Votes: 5 | Rate: 7.20] Shopping and Services : Parts & Surplus Shopping and Services : RF Tubes
- Tube World
- Your one-stop source for high quality new old stock vacuum tubes.
[Hits: 282 | Votes: 0 | Rate: 0.00] - QRO-Parts.com
- Svetlana tubes also Russian capacitors,vacuum and coaxial relay, for RF Power Linear Amplifier builders. Amateur-Radio, Broadcast. Full Online Catalog.
[Hits: 476 | Votes: 69 | Rate: 8.87] Technical Reference : Amplifiers : RF Amplifiers Theory
- Power Gride Tubes
- Article on tubes and their usage in power amplifiers design. Explain failures of tube in RF power amplifiers, a common problem in the SB-220 SB-221, TL-922 and other amplifiers.
[Hits: 530 | Votes: 1 | Rate: 3.00] Technical Reference : Amplifiers : VHF Amplifiers Technical Reference : Test Equipment
- Ultra-Simple Oscilloscope
- This homemade tube oscilloscope is based on the WaterMan Pocket-Scope 0510A, a 3 tube oscilloscope made in 1946.
[Hits: 781 | Votes: 0 | Rate: 0.00] Technical Reference : Vacuum tube
- Vacuum tube liquid cooling system
- This article describes an alternative to water as the cooling liquid for amateur radio vacuum tube power amplifiers. This cooling system is designed for adequate vacuum tube cooling, reasonable cost, and very low maintenance. By K8CU
[Hits: 323 | Votes: 0 | Rate: 0.00]
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