This circuit consists of a single transistor as amplifier and it gives a nice amplification to weakest and unipolar signals for feeding to a real amplifier. The center of this circuit is a BC547 OR ...

The construction of the circuit was focused on emphasizing and amplification of video signals to obtain more clarity of picture frequencies. BC547 – NPN small signal transistors designed for general ...

Let’s say you want to blink an LED. You might grab an Arduino and run the Blink sketch, or you might lace up a few components to a 555. But you needn’t go so fancy! [The Design Graveyard] explains how ...