This circuit was found in a Philips documentation from 1970. The components are of the time, difficult to find today, but the configuration can be adapted to use modern equivalent components.
The UAA170 integrated circuit is no longer common in our market. With it it is possible to...
This circuit that emits siren sound can be used in a fire alarm. We found it in an old American...
This double time constant circuit for resistive loads was found in documentation from the 1980s. The...