This circuit generates control signals for stepper motors. We found it in a 90s Popular Electronics. The power can be made with a 5 V supply so that it works as a shield.
This small blocking oscillator for approximately 1000 Hz was found in an American documentation from the...
This isolated solid state relay can function as a shield directly controlling 10 A loads. The...
This circuit was found in a 1974 publication. It converts the applied voltage into pulses of...