This circuit was found in a 1968 Hughes documentation. The transistors are from that time. The coil is for the medium or short-wave range.
This circuit detects traffic problems on a miniature railway by triggering an alarm. The circuit was...
When establishing the voltage at the input of this regulator, the output voltage rises smoothly until...
This circuit was found in a Motorola documentation from 1975. Modern equivalent transistors such...