We found this circuit with SCRs and unijunction in a Radio Electronics magazine from June 1969. The SCRs must be in accordance with the controlled incandescent lamp. The circuit is powered by DC.
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...