This countdown electromagnetic ring launcher was found in an Electronic Hobbyst Handbook from 1993. The components can be difficult to obtain. Details of the launch coil were not given.
With a light pulse on the Q1 sensor the circuit turns on and locks. To switch off, a light pulse...
March 2017 - STMicrocoelectronics' new LoRaWan B-L072Z-LRWAN1 STM32 development board can now be...
This circuit is from the manual of the components used, from the 80s. The circuit is valid for...