This circuit was found in 1980s American documentation. The transducer is a piezoelectric capsule and the power supply voltage can be between 3 and 18 V.
This transistor class B 5 W amplifier was found in a 1969 Mullard documentation. The transistors are...
This conventional power supply uses discrete components and can provide 12 V or 13.6 V output with...
This circuit is more sensitive than the previous one (CB4118E) for using a full wave detector. The...