Instead, his coil uses a relay in place of a spark gap. [Teodor] built his coil using leftover components from his old school, making good use of some parts that might have otherwise been thrown away.
He realized that when the coils in the sensor were energized they were putting out about 7 volts AC, which should be more than enough to trigger a relay. So he threw together a rectifier circuit ...
In 2022, the global Small Electromagnetic Relay market achieved a valuation of US$ million. Over the forecast period until 2029, driven by increasing demand across various applications, the market is ...