Using the integrated circuit DCP01051D this circuit was found in the magazine Electronics Now of August 1998. The maximum current is 50 mA.
Capacitance to voltage converter (CB6075E) This Texas Instruments circuit can be used on a...
This circuit was obtained from an American 80's documentation. The transistors can be 2N2222 and...
This circuit is a small FM transmitter, capable of carrying its signals over short distances...