F2FO ( Claude Paillard ). Make your own tubes .

W0IVJ's Homebrew Ham Radio Antenna Rotator ... W0IVJ's Homebrew Ham Radio Antenna Rotator

Yup, there's even a video of THIS! Amazing, soon we'll see people opening up utility bills on youtube. Anyway, if you've always used RG-8 or RG-213, this is a nice step right past LMR-400 and into the real stuff. This is the last step before Heliax. The difference w/ 600 Vs the first...

SOTA DM/NS-042 2008

This is a video of the Lindsay/Gingery coil winder that I built a ways back. It makes nice universal wound coils as well as solenoids. It is basically the Morris coil winder that was popular in the early years of radio.

What is Hellschreiber. Hellschreiber is a German name, meaning "bright writing", or "clear writing". Hellschreiber is anything but a new mode. It was first patented in 1929 which makes it the oldest machine generated data transmission mode used in amateur radio. To put this in perspective, SSB...

This is a homebrew 1200 watt RF amplifier using a pair of 3-500 tubes. I built it for AM use on the Amateur Radio 75 meter band. Using a rice box, 15 watts of drive produces 300 watts output. ... KA1TDQ Jon Jonathan Rines Amateur Ham Radio homebrew amplifier AM tubes

Best viewed in high quality. Burt, K1OIK reviews the Flex 5000A Software Defined amateur radio.

I recently visited Lyme Regis UK. Like all good hams I took along my wireless kit. I setup my FT-817 and MP-1 vertical antenna and worked some PSK-31 DX. I shot this with my Canon SD750 digital still camera using the video mode. It worked pretty good. Several times I had to empty the memory...

G4MLY (located Beledere, London) as received in south east Essex