The purpose of this circuit is to indicate which of the two cars crosses the finish line first on a slot car lane. The circuit is from an 80's Popular Electronics.
This two-component circuit is from a 1967 Philips documentation. The relay is a high-sensitivity type...
We found this circuit in a 1967 Electronic Design. The circuit used a MOSFET of the time, which is...
This circuit was found in the August 1997 Electronics Now magazine. The circuit uses well-known...