The circuit presented is a Japanese commercial radio for AM with 50 mW of output power, powered by 9 V. The circuit is from the 60s, having been found in documentation of the time.
This circuit was obtained from a Hands-On Electronics, an American magazine from January 1987. The...
Panasonic is delivering through its Mouser Electronics its CSP series of power MOSFETs in a range...
In the figure we show a means of changing the output voltage of a fixed regulator, such as 7805 or...