This circuit uses two diodes in a doubling configuration to receive medium-wave range signals. The phone is crystal. We found it in a 1968 American documentation.
Found in Popular Electronics from the 90s, this circuit powers a warning lamp when the load is...
The four gates of a 40111 IC are used in thes two-out circuit. The output chages their state in a...
We found this circuit in a 1997 publication. It produces pulses of excitation whose intensity can...