5874E)
This circuit uses an optocoupler to switch a load on the power grid. The circuit is from Electronics Now magazine, July 1995. The CA3059 is not common today.
In the figure we have a simple signal tracer circuit to be coupled to the volume control of an AM...
This circuit was found in documentation from the 90s, using components from that time. The...
This circuit, obtained from old documentation, allows the recovery of sulfated batteries. The...