Found in an American magazine from 1968, this circuit produces pulses free of bounces on its output. The integrated is of DTL logic, no longer used today.
The suggestion for using this circuit from an old American documentation is to use small antennas...
November 2016 - The new wireless power modules for use in wearables from Semtech can now be...
This TTL module can be used in counter and many of them can be cascaded to counts up to 99, 999,...