This circuit was obtained from Linear Technology documentation from the 80's. Powered by 5 V it can be used as a shield. The components are from the era.
This circuit, suggested by Texas Instruments, is based on the integrated TL497A, designed for...
This high current regulator was found in documentation from 1977. Transistors are types of power at...
This circuit has the pulse width determined by the 22k resistor and the frequency by the capacitor and...