During World War II, GIs in the field built really amazing simple radios to listen too. These were made with materials that they could get their hands on and were small enough to carry around in a big pocket. You can modify this design if you want to set it up so that it’s tuneable…
This is a simple add-on adapter for any Family Radio Service (FRS), amateur, or two-way radio transceiver with a microphone/Push-to-Talk (PTT) and external earphone/speaker interface. It will turn the transceiver into a co-channel jammer. That is, a jammer which can only jam a single frequency upon the detection of any “activity” on that particular frequency. This type of…
Static Bleeder for Any Antenna by Phil Salas – AD5X Many antennas don’t have a means of bleeding off static build-up. This includes the popular Hustler BTV-series of verticals, dipoles without transformer-type baluns, and many other antennas. While this is typically not much of a problem, I am always concerned about possibly damaging my antenna…
Did you ever want to upgrade your bread-boarded circuits to something more permanent? Or maybe you’ve got a hankering to make your own metal Jelwery? Today Sylvia will show you how you can do both with super simple copper etching. More info: http://wp.me/p1CIX9-tbq
The ‘Retro-75’ 75/80 Meter AM Transceiver board kit & The ‘Retro-40’ 40 Meter AM Transceiver board kit This project is a frankly nostalgic look back at our hobby of 50 years ago. It’s now been updated using all modern components. Features: Board size 3.5” x 5.27” Tunable Receiver- 50 kHz, selectable, varicap-tuned 4 kHz receiver…