This PNP transistor power stage was found in the May 1969 issue of Radio Electronics magazine. The circuit uses a transformer for excitation and requires 10W input for full output power.
This circuit was obtained from Linear Technology documentation from the 80's. Powered by 5 V it...
This circuit was obtained in a documentation from the 1970s. What it does is to delay trigger a...
In the figure we have an anti-ring or debouncer circuit with 555. The duration of the pulse is...