2N4987 and 2N4990 (IP057E)

Unilateral switch (SUS) with 8 V of trigger voltage. This component is used to control SCRs and other applications.

1-Transistor Emitter Follower (CB12208E)
In a transmitter sequencer we have a high input impedance and a low output impedance. The voltage...
Touch Switch Using the 555 IC (CB879E)
This basic configuration aof a touch switch controls a relay. Power supply can be 5, 6 or 12 V...
Low Impedance Preamplifier (MSB030)
This circuit amplifies signals from low impedance sources as microphones, transducers, etc. For...