Logic test (CB21611E)

Using the LM358 from Texas Instruments, this circuit uses LED indicators and can be powered with voltages of 5V or according to the analyzed logic.

| Clique na imagem para ampliar |

Light intensity meter (CB7340E)
This circuit was found in a Philips documentation from 1970. The components are of the time,...
Pulse divider (CB6830E)
This circuit divides the frequency of a 2 kHz signal by 2. The circuit was found in Philips...
Wind Sound Generator (CB21346E)
This circuit was found in an English publication. The components are current, and the transformer must be...