om power742 links - and 2 categories
Antennas : 160M
- Vertical antenna for 160 meter
- This high antenna require a large ground composed by 40 radials. It's not very handy expecially in windy situations but is very powerfull in pile-ups. In italian
[ Hits: 3991 | Votes: 1 | Rating: 10.00 ]
- 50MHz Power Splitters
- Splitting an antenna between two receivers or
in use as the phasing harness in stacked antennas where there is a need to equally split the power from the transmitter between two antennas
[ Hits: 2973 | Votes: 6 | Rating: 8.00 ]
- Effects of VSWR on Transmitted Power
- By James G. Lee, W6VAT
[ Hits: 872 | Votes: 3 | Rating: 6.67 ]
- RF Amplifiers
- Solid State and TWT Amplifiers From 1 MHz to 40 GHz with Power Levels from .1 mil Watt to 2.5 Kw
[ Hits: 6297 | Votes: 2 | Rating: 8.50 ]
- RF HAMDESIGN
- An engineering oriented organization specializing in the design and manufacture of high performance parabolic antennas, 3dB high power RF couplers, Antenna power splitters, directional RF couplers and more items for RF transmission from HF through Microwave frequencies.
[ Hits: 1450 | Votes: 4 | Rating: 9.00 ]
- Amidon Inc.
- Ferrite Toroids. Iron Powder Toroids. Ferrite Beads. Split Cores. Cable clamp-ons. Balun Cores. W2FMI Baluns and Ununs. Inductive components for EMI Suppression and RFI Suppresion, power supplies, HAM radio.
[ Hits: 1871 | Votes: 4 | Rating: 5.75 ]
- Leader in providing power vacuum tubes. A subsidiary of CPI
[ Hits: 496 | Votes: 2 | Rating: 10.00 ]
- BURLE Industries
- Power tubes, high voltage power supplies
[ Hits: 551 | Votes: 2 | Rating: 5.50 ]
- Nicola Tesla autobiography
- Free pdf book on Nicola Tesla. He is the true unsung prophet of the electric age; without whom our radio, auto ignition, telephone, alternating current power generation and transmission, radio and television would all have been impossible
[ Hits: 340 | Votes: 2 | Rating: 5.50 ]
- Near-Real-Time F2-Layer Critical Frequency Map
- This map can be used to determine the frequencies that will always be returned to the Earth. Transmitted frequencies higher than the indicated contours (which are given in MHz) may penetrate the ionosphere, resulting in lost power to space.
The map shows the radio auroral zones as green bands near the northern and southern poles.
[ Hits: 4830 | Votes: 22 | Rating: 5.10 ]
- BEIJING ELJVT
- Sell the China made electron tubes over a long period of time, the vacuum tubes/electron valves/Power tubes/Audio Tubes/Thyratrons/Magnetrons and accessories, the tube sockets, the vacuum capacitors, high voltage ceramic capacitors, aluminum electrolytic capacitor.
[ Hits: 595 | Votes: 2 | Rating: 5.50 ]
[ Hits: 2870 | Votes: 14 | Rating: 7.99 ]
- Smart Morse
- Morse code tutoring program for the Palm powered PDA. The main feature that separates Smart Morse from other programs of this nature is the fact that this program learns about you as you practice
[ Hits: 1623 | Votes: 2 | Rating: 5.50 ]
- An ionospheric laboratory for your personal computer. Wquipped with one of the most powerful ray-tracing engines capable of handling such things as Ionospheric Tilts Chordal Hops Non-Great-Circle Propagation Spitzes and more
[ Hits: 1873 | Votes: 3 | Rating: 4.00 ]
- IK5MEN HF amplifier 10-160m.
- Italian page including pictures schematics diagrams of an home made linear amplifier using four EL509 in parallel. Output power is about 700W.
[ Hits: 4802 | Votes: 6 | Rating: 3.50 ]
- LA7MI 40W RF Amplifier for 80m
- 40W Linear Power amplifier with FETs for 80m
Some notes about saturation in ferrite- and iron-cores.
Written by LA7MI Stein Torp, N-5005 Bergen
[ Hits: 2807 | Votes: 2 | Rating: 1.50 ]
- A 20m monoband Power Amp
- The 20m monoband 4-1000 amplifier, by Jelmer (pa5r), Herman (pa0ten) and Frans (pa5ca)
[ Hits: 2679 | Votes: 2 | Rating: 9.50 ]
- Vacuum Tube Amps
- How the tube converts DC to RF Power
[ Hits: 1317 | Votes: 1 | Rating: 10.00 ]
- GJ4ICD's 8877 50MHz Amplifier
- A Compact 8877 50MHz amplifier and Power supply
[ Hits: 1051 | Votes: 1 | Rating: 10.00 ]
- Digital QRP SWR & Power meter
- A KD1JV Melt solder kit, a swr and power meter operating from 160 to 6 meters ideal for portable and field use
[ Hits: 5046 | Votes: 4 | Rating: 1.75 ]
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