Tag: bf494 amplifier circuit

The BF494 is an NPN medium-frequency transistor used in low-power amplification and signal processing circuits. This article explains the BF494 pinout, key features, electrical specifications, working principle, applications, and equivalent transistors in a structured and consistent format. Introduction The BF494 is a general-purpose NPN bipolar junction transistor designed for medium-frequency amplification. It is widely used […]