Contactless ignition (CB6381E)

This circuit is from a 1965 Motorola documentation. The transistors are of the time as is the uninformed magnetic sensor.

| Clique na imagem para ampliar |

Cascading the 4510 (CB181E)
Figure bellow shows how the 4510 can be cascaded for counts higher than 10. The circuit shows the...
Field strength meter (CB7564E)
This circuit that appears in similar versions on this site was found in a Popular Electronics from the...
Second-Order Low Pass Filter (CB25814E)
This 10 kHz filter is based on a 741 operational amplifier. The circuit is from Electronics Now...