We found this circuit in a 1968 General Electric publication. The circuit uses an SCR of the time, but any modern equivalent can be used. The relay must have contacts that support the horn current.
June 2017 - Bosch's new low G triaxial sensors can now be obtained from Mouser Electronics. The...
This circuit was found on an application note from Linear Technology of the 1990s. The source must...
The transistors of this circuit may be the BC548 or BC549 and its power supply can be performed...