Microphone jack;it can be connected wih the microphone. The other two items were a general coverage short wave receiver , the AR-2, and an impedance meter. This kit is based on Our Glenn Brown Author article in May CQ Magazine entitled "Look Ma - No High Voltage" It is a milliwatt range vacuum oscillator kit assembled breadboard style using a new old stock 12K5 vacuum tube that uses 12 volts dc on both the filaments and the plate. ST-7C FM stereo transmitter can be used for factories, schools, supermarkets, farms, Office space or create your own radio station. Crystal is not included. Wireless linked cellular telephone systems and linked Personal Data Assistance PDAs and palm sized computers are becoming common place.
ETP Kits & Projects
The frequency of the crystal is divided by with the frequency divider within the IC. Click here to see kit in use. This kit will operate on 80 meter or 40 meter CW ham radio frequencies with power out in the 2 to 5 watt or more range. So the VFO was mixed with a crystal oscillator before getting to the signal mixer. As Pink Floyd would say,.
ETP Kits & Projects
Transmitting power can switch between 1W and 7W. All over launch its own FM radio station. By Harry Lythall sm0vpo Andy's circuits: Specifically, the 3rd harmonic would only be about 6 dB below the fundamental. Within 2 km 5 km 10 km 15 km 20 km 50 km 75 km km km km km km km km km of. Kit includes all screws, washers and nuts required for assembly. Lots of good stuff, Incl.
This kit has been written up in QST magazine, and is subject of many posts on popular web sites. It is crystal controlled. When mp3 is played the red LED flashes. Change from one band to the other requires different coils be soldered in. AV Transmitter and Receiver. Once operational I find that if I use good older crystals I acquired 7 over time and only three are stable enough and carefully tune the variable cap I can get a good CW note.