This commercial signal follower was found in a 1967 Japanese magazine. It uses germanium transistors and provides a speaker output without the need for a transformer.
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....