Page 4 First bipolar junction transistor BJT circuits

Bipolar junction transistor circuits are the primary focus of this page

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NPN bipolar junction transistor BJT visualized using LEDs demonstration ciircuit schematic by electronzap
NPN bipolar junction transistor BJT visualized using LEDs demonstration ciircuit schematic by electronzap

NPN bipolar junction transistor BJT basic electronics properties demonstrated with LEDs

PNP bipolar junction transistor BJT demonstration circuit schematic diagram by electronzap
PNP bipolar junction transistor BJT demonstration circuit schematic diagram by electronzap

PNP 2N3906 Bipolar Junction Transistor BJT demonstration electronics circuit

DSO shell pocket oscilloscope how to use for measuring slow voltage changes easily at low price

NPN Bipolar Junction Transistor BJT switch used to improve 555 timer high output schematic diagram by electronzap
NPN Bipolar Junction Transistor BJT switch used to improve 555 timer high output schematic diagram by electronzap

NPN bipolar junction transistor BJT switch circuit used to improve 555 timer high output circuit

PNP bipolar junction transistor switch 2N3906 BJT schematic diagram by electronzap
PNP bipolar junction transistor switch 2N3906 BJT schematic diagram by electronzap

PNP BJT switch circuit basics using 2N3906 bipolar junction transistor with pull up resistor

Output a voltage:

NPN bipolar junction transistor emitter follower set with trimpot demo circuit schematic diagram by electronzap
NPN bipolar junction transistor emitter follower set with trimpot demo circuit schematic diagram by electronzap

NPN BJT emitter follower common collector 2N3904 bipolar junction transistor with trimpot circuit

PNP BJT emitter follower common collector 2N3906 bipolar junction transistor demonstration cricuit schematic by electronzap
PNP BJT emitter follower common collector 2N3906 bipolar junction transistor demonstration cricuit schematic by electronzap

PNP BJT emitter follower common collector circuit using 2N3906 bipolar junction transistor

Vout equals Vin Bipolar Junction Transistor emitter follower common collector thanks to cascading NPN and PNP BJTs schematic diagram by electronzap
Vout equals Vin Bipolar Junction Transistor emitter follower common collector thanks to cascading NPN and PNP BJTs schematic diagram by electronzap

Cascading emitter follower common collector BJTs so that Vin is Vout with PNP 2N3906 and NPN 2N3904

Fading:

LED fade on off improved with NPN BJT improved capacitor controlled by push button switch circuit

Trimpot adjustable NPN bipolar junction transistor BJT that acts like a zener diode demonstration circuit by electronzap
Trimpot adjustable NPN bipolar junction transistor BJT that acts like a zener diode demonstration circuit by electronzap

Trimpot adjustable NPN bipolar junction transistor BJT voltage out similar to a zener diode circuit

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