Universal logic test (CB8907E)

This circuit was found in an Elektor from the 90s. Transistors are common and status indications are made through LEDs.

| Clique na imagem para ampliar |

Lucky Shield Arduino – Arduino
September 2017 - Arduino Lucky Shield shields containing a 5 V OMRON-g6RL relay, a Everylight...
Emergency Light (CB1561E)
With the configuration shown in the figure, a common 12 V lamp lights up when light no longer...
Temperature to frequency converter (CB5103E)
This circuit is from the owner's manual of the integrated circuits used. The manual is old, which...