This circuit, very critical due to the frequency at which it operates, was found in an American documentation that uses a resonant cavity in a beer can. The transistor can be of any type for RF.
In this charger, the charging current is basically limited by the LEDs. The transformer is a low...
April 2017 - The new RAME027 rotating magnetic absolute encoders with Vishay's displacement sensor are...
We found this circuit in a 1995 documentation. Powered by batteries, it uses a telephone capacitor as a...