ZENER DIODEXOR GATE – LOGIC GATEXNOR GATE – LOGIC GATEWIRES NOT CONNECTEDWIRES CONNECTEDWIREWATT METERVOLTAGE SOURCEVOLT METERVERICAP DIODEVARIABLE RESISTORVARIABLE INDUCTORVARIABLE CAPACITORTUNNEL DIODETRIMMER RESISTORTRANSISTOR PNPTRANSISTOR NPNTRANSFORMERSWITCHSTEP UP TRANSFORMERSTEP DOWN TRANSFORMERSPEAKERSOLDER BRIDGESCOTTKY DIODESCHMITT TRIGGERRESISTORREPAY SPSTRELAY SPDTPUSH BUTTON SWITCHPOTENTIO METERPOLARIZED CAPACITORPMOS TRANSISTORPHOTO RESISTORPHOTO DIODEOR GATE – LOGIC GATEOPTO COUPLEROP AMPOHM METERNOT GATE – LOGIC GATENOR GATE – LOGIC GATENMOS TRANSISTORNAND GATE – LOGIC GATEMUXMOTORMICROPHONELIGHT EMITTING DIODELAMPJUMPERJFET-P TRANSISTORJFET-N TRANSISTORINDUCTORINDUCTOR IRONGROUND EARTHGROUND DIGITALGROUND CHASISGENERATORFUSEELECTRIC BELLDIP SWITCHDIODED – FLIP FLOPDEMUXDARLINGTON PAIRDIGITAL TO ANALOG CONVERTERCURRENT SOURCECRYSTAL OSCILLATORCONTROLLED VOLTAGE SOURCECONTROLLED CURRENT SOURCECAPACITORBUZZERBUSBRIDGE CIRCUITBATTERYBATTERY CELLANTENNAAND GATE – LOGIC GATEAMMETERANALOG TO DIGITAL CONVERTERAC SOURCE