Nicad Charger (CB13550E)

This circuit is from 1973 documentation. The transformer has 500 mA of current and the transistor can be the TIP32 mounted on a heat radiator.

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Transistor Intercom (CB11212E)
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This circuit has an accuracy of 1%. The components used must be precision as well. The input...
Star Alternator (CB20067E)
In the figure below we have the typical circuit of an automotive star alternator with the...