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 simple digital circuit tester can work with TTL technology when powered by 5 V and with CMOS...
This circuit generates 24 V positive from a 12 V supply. The maximum output is 1 A and the power...
This small power supply for low currents (5mA) is suitable for power low-power TTL experimental circuits....