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

Here is a short demo of a King Conversions (QROKing.com) modified SB220 amplifier for monoband 6M operation. I am very pleased with Lou's work and I let this demo speak for itself. CU on 6M! 73 Lee

This is HF/50MHz transceiver from YAESU, model FT-950. I use this rig in my hamshack since september 2009. It works great. Enjoy details.

Ham radio 10 meter amp project winter time fun ... "Ham radio" "10 meter rig" "CB radio"

This is one of my 144Mhz Mosfet amplifiers with Freescale MRF6VP2600H. This is a 49V Ldmosfet amplifier for 144Mhz which easily puts out 500 Watt in linear service. The amplifier exhibits a gain of around 20dB and noteable gain compression sets in above 500 Watts of output power. Not shown in...

This is a demo video clip I made of receiving amateur radio PSK 31 transmissions on the amateur radio 40 meter band on 7.035 Mhz using a free software package called "Ham Radio Deluxe". I down loaded the software from http://www.ham-radio-deluxe.com. In this demo, I fed the receiver...

Just some more video footage of my amateur (Ham) radio/SWL \\\"shack\\\" at my apartment in Denver, Colorado. I was demonstrating some of the features of the Ham Radio Deluxe (HRD) software program as well as the Digital Master780 software which integrates...

This is the WD0AKX 10 meter ham radio beacon transmitter on 28.2235 Mhz running around one half watt power output from Albert Lea, MN. The camera used is a Kodak Zi8 in 720p at 30 fps.

This little four-valve radio has not yet been identified. I'm hoping that somebody can identify it for me or help me to do so. It measures 6"deep, 7 high and 10 wide. The only labels it has on the front is the company name of 'Freed Eisemann' and on the rear of the internal metal chassis is a...

Copernicus Project