Found in a Popular Electronics this circuit has double regulation. The integrated circuits used provide a maximum current of 1 A and must be provided with heat sinks.
This old Philips amplifier uses an integrated circuit that is not common today. The circuit must...
We found this circuit in an old Italian publication, but it can be fitted with BC558 transistors if the...
More and more supercapacitors are being used as supplementary sources of energy in several...