DESCRIPTION :-
• A 2N2222 NPN transistor,
• A Zener Diode 5.1,
• Two Diodes model 1N4007,
• A Resistance model 1K,
• 3 Resistance model 100K ,
• A Digital Multimeter,
• A suitable circuit for connecting 4 mm head cables,
• A metal ruler, a switch button,
• A universal clamp,
• A DC Voltmeter 0-10V,
• Ammeter (0-5) A
• A Rheostat 22 Ω, 3,3Amp.