| Radio remote controls for model aircraft and similar devices are rightly subject to strict regulations. They govern not only the transmit fr...
| Radio remote controls for model aircraft and similar devices are rightly subject to strict regulations. They govern not only the transmit fr...
| Good news for all audio enthusiasts: we are proud to present yet another all-analog circuit developed entirely in house. Despite the simple...
| Relays or contactors are often used to switch AC-powered inductive loads such as motors, valves or electro magnets. When the device is switc...
| Measuring the AC powerline frequency is a proxy for determining the match between the supply of and demand for power in the national grid an...
| This power supply is based on an integrated switching regulator to keep the component count within reasonable limits. The functional units o...
| Herwe use a green glowing valve as a CPU activity meter. Power and control are both provided by the USB port. A simpler variant on the circu...
| The High-End Preamp preamplifier published in the April & May 2004 issues naturally calls for a matching final amplifier in an identical hou...