Simple 6 or 9 V power supply (CB24317E)

This 1-transistor circuit for currents up to 50 mA was found in the August 1974 Radio Electronics magazine. The transformer is 50 to 200 mA.

| Clique na imagem para ampliar |

Memory sensor amplifier (CB6809E)
This circuit is from a 1967 documentation. It consists of a sensor for memories used at the time....
Transistors and Diodes Tester (CB18658E)
This simple circuit makes it possible to test diodes and transistors for generating use and medium...
TTL CMOS Adapter (CB4622E)
This circuit allows you to couple a TTL circuit output to the input of a CMOS circuit. The base is a...