High-Low Sensor (MEC180E)

Figure 1 - High-low sensor.

Simple Car Antitheft (CB16520E)
This circuit is from 1998 documentation. The circuit causes defects in the ignition system,...
Light disturbance detector (CB8522E)
This circuit is based on the light comparison of two LDR sensors. We found it in a 90s Popular...
Simple pulse extender (CB8921E)
This TTL pulse stretcher or stretcher was found in a 90's EDN. The time constant R x C1 determines...