| The combination of a couple of thyristors, key switches and a relay as shown in the diagram forms a suitable, reasonably tamper-proof code...
| The combination of a couple of thyristors, key switches and a relay as shown in the diagram forms a suitable, reasonably tamper-proof code...
| Simple triangle-wave generators have a weakness in that the waveform of their output signal normally cannot be modified. The circuit pre...
| Upright mounting, immersion cleanable. For PCB mounting, pin arrangement suits 2.5 mm and 0.1-in. grid in accordance with DIN 40801 and DIN...
| The use of CW (morse) on a high-power transmitter/receiver presents a serious risk of burned antenna (coax) relay contacts or destruction o...
| With the aid of a few components a standard relay can be made to change state every time a pulse is applied (or a switch is pressed).