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Circuit Schematic Symbols, Reproduced from: http://library.thinkquest.org/10784/circuit_symbols.html, Note: The schematics symbols for most major electrical components can be found in this table., However, each component may have numerous possible representations. In cases where there is, more than one common symbol we have tried to give an alternate representation., COMPONENT, Ammeter, And Gate, Antenna, Balanced, Antenna, General, Antenna, Loop, Shielded, Antenna, Loop, Unshielded, Antenna, Unbalanced, Attenuator, Fixed, Attenuator, Variable, Battery, Capacitor, Feedthrough, Capacitor, Fixed, Nonpolarized, Capacitor, Fixed, Polarized, Capacitor, Ganged, Variable, Capacitor, General, , SYMBOL ALTERNATE

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Capacitor, Variable, Single, Capacitor, Variable, Split-Stator, Cathode, Cold, Cathode, Directly Heated, Cathode, Indirectly Heated, Cavity Resonator, Cell, Circuit Breaker, Coaxial Cable, Crystal, Piezoelectric, Delay Line, Diode, General, Diode, Gunn, Diode, Light-Emitting, Diode, Photosensitive, Diode, Photovoltaic, Diode, Pin, Diode, Varactor, Diode, Zener

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Jack, Phone, 2-Conductor, Jack, Phone, 2-Conductor Interrupting, Jack, Phone, 3-Conductor, Jack, Phono, Key, Telegraph, Lamp, Incandescent, Lamp, Neon, Male Contact, General, Microphone, Nand Gate, Negative Voltage Connection, Nor Gate, Operational Amplifier, Or Gate, Outlet, Utility, 117-V, Outlet, Utility, 234-V, Photocell, Tube, Plug, Phone, 2-Conductor, Plug, Phone, 3-Conductor

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Plug, Phono, Plug, Utility, 117-V, Plug, Utility, 234-V, Positive Voltage Connection, Potentiometer, Probe, Radio-Frequency, Rectifier, Semiconductor, Rectifier, Silicon-Controlled, Rectifier, Tube-Type, Relay, DPDT, Relay, DPST, Relay, SPDT, Relay, SPST, Resistor, Resonator, Rheostat, Saturable Reactor, Shielding, Signal Generator

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Speaker, Switch, DPDT, Switch, DPST, Switch, Momentary-Contact, Switch, Rotary, Switch, SPDT, Switch, SPST, Terminals, General, Balanced, Terminals, General, Unbalanced, Test Point, Thermocouple, Thyristor, Transformer, Air-Core, Transformer, Iron-Core, Transformer, Tapped Primary, Transformer, Tapped Secondary, Transistor, Bipolar, npn, Transistor, Bipolar, pnp, Transistor, Field-Effect, N-Channel

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Transistor, Field-Effect, P-Channel, Transistor, Metal-Oxide, Dual-Gate, Transistor, Metal-Oxide, Single-Gate, Transistor, Photosensitive, Transistor, Unijunction, Tube, Diode, Tube, Pentode, Tube, Photomultiplier, Tube, Tetrode, Tube, Triode, Unspecified Component, Voltmeter, Wattmeter, Wires, Wires, Connected, Crossing, Wires, Not Connected, Crossing