ELECTRONIC SYMBOLS

 

1.

Ammeter

2.

Amplifier general

3.

Amplifier, inverting

4.

Amplifier, operational

5.

AND gate

6.

Antenna, balanced

7.

Antenna, general

8.

Antenna, loop

9.

Antenna, loop, multiturn

10.

Battery

11.

Capacitor, feedthrough

12.

Capacitor, fixed

13.

Capacitor, variable

14.

Capacitor, variable, split-rotor

15.

Capacitor, variable, split-stator

16.

Cathode, electron-tube, cold

17.

Cathode, electron-tube, directly heated

18

cathode, electron-tube, indirectly heated

19.

Cavity resonator

20.

Cell, electrochemical

21.

Circuit breaker

22.

Coaxial cable

23.

Crystal, piezoelectric

24.

Delay line

25.

Diac

26.

Diode, field-effect

27.

Diode, general

28.

Diode, Gunn

29.

Diode, light-emitting

30.

Diode, photosensitive

31.

Diode, PIN

32.

Diode, Schottky

33.

Diode, tunnel

34.

Diode, varactor

35.

Diode, zener

36.

Directional coupler

37.

directional wattmeter

38.

Exclusive-OR gate

39.

Female contact, general

40.

Ferrite bead

41.

Filament, electron-tube

42.

Fuse

43.

Galvanometer

44.

Grid, electron-tube

45.

Ground, chassis

46.

Ground, earth

47.

Handset

48.

Headset, double

49.

Headset, single

50.

Headset, stereo

51.

Inductor, air core

52.

Inductor, air core bifilar

53.

Inductor, air core, tapped

54.

Inductor, air core, variable

55.

Inductor, iron core

56.

Inductor, iron core, bifilar

57.

Inductor, iron core, tapped

58.

Inductor, iron core, variable

59.

Inductor, powdered-iron core

60.

Inductor, powdered-iron core, bifilar

61.

Inductor, powdered-iron core, tapped

62.

Inductor, powdered-iron core, variable

63.

Integrated circuit, general

64.

Jack, coaxial or phono

65.

Jack, phone, two-conductor

66.

Jack, phone, three-conductor

67.

Key, telegraph

68.

Lamp, incandescent

69.

Lamp, neon

70.

Male contact, general

71.

Meter, general

72.

Microammeter

73.

Microphone

74.

Microphone, directional

75.

Milliammeter

76.

NAND gate

77.

Negative voltage connection

78.

NOR gate

79.

NOT gate

80.

Optoisolator

81.

OR gate

82.

Outlet, two-wire, nonpolarized

83.

Outlet, two-wire, polarized

84.

Outlet, three-wire

85.

Outlet, 234-V

86.

Plate, electron-tube

87.

Plug, two-wire, nonpolarized

88.

Plug, two-wire, polarized

89.

Plug, three-wire

90.

Plug, 234-V

91.

Plug, coaxial or phono

92.

Plug, phone, two-conductor

93.

Plug, phone, three-conductor

94.

Positive voltage connection

95.

Potensiometer

96.

Probe, radio-frequency

97.

Rectifier, gas-filled

98.

Rectifier, high-vacuum

99.

Rectifier, semiconductor

100.

Rectifier, silicon-controlled

 

101.

Relay, double-pole, double-throw

 

102.

Relay, double-pole, single-throw

 

103.

Relay, single-pole, double-throw

 

104.

Relay, single-pole, single-throw

 

105.

Resistor,fixed

 

106.

Resistor, preset

 

107.

Resistor, tapped

 

108.

Resonator

 

109.

Rheostat

 

110.

Saturable reactor

 

111.

Signal generator

 

112.

Solar battery

 

113.

solar cell

 

114.

Source, constant-current

 

115.

Source, constant-voltage

 

116.

Speaker

 

117.

Switch, double-pole, double-throw

 

118.

Switch, doble-pole, rotary

 

119.

Switch, double-pole, single-throw

 

120.

Switch, momentary-contact

 

121.

Switch, silicon-controlled

 

122.

Switch, single-pole, rotary

 

123.

Switch, single-pole, double-throw

 

124.

Switch, single-pole, single-throw

 

125.

Terminals, general, balanced

 

126.

Terminals, general, unbalanced

 

127.

Test point

 

128.

Thermocouple

 

129.

Transformer, air core

 

130.

Transformer, air core, step-down

 

131.

Transformer, air core, step-up

 

132.

Transformer, air core,tapped-primary

 

133.

Transformer, air core, tapped-secondary

 

134.

Transformer, iron core

 

135.

Transformer, iron core, step-down

 

136.

Transformer, iron-core, step-up

 

137.

Transformer, iron core,tapped primary

 

138.

Transformer, iron core, tapped secondary

 

139.

Transformer, powdered-iron core

 

140.

;

Transformer, powdered-iron core, step-down

 

141.

Transformer, powdered-iron core, step-up

 

142.

Transformer, powdered-iron core, tapped primary

 

143.

Transformer,powdered-iron core, tapped secondary

 

144.

Transistor, bipolar, NPN

 

145.

Transistor, bipolar, PNP

 

146.

Transistor, field-effect, N-channel

 

147.

Transistor, field-effect, P-channel

 

148.

Transistor, MOS field-effect, N-channel

 

149.

Transistor, MOS field-effect, P-channel

 

150.

Transistor, photosensitive, NPN

 

151.

Transistor, photosensitive, PNP

 

152.

Transistor, photosensitive, field-effect, N-channel

 

153.

Transistor, photosensitive, field-effect, P-channel

 

154.

transistor, unijunction

 

155.

Triac

 

156.

Tube, diode

 

157.

Tube, heptode

 

158.

Tube, hexode

 

159.

Tube, pentode

 

160.

Tube, photosensitive

 

161.

Tube, tetrode

 

162.

Tube, triode

 

163.

Voltmeter

 

164.

Wattmeter

 

165.

Waveguide, circular

 

166.

Waveguide, flexible

 

167.

Waveguide, rectangular

 

168.

Waveguide, twisted

 

169.

Wires, crossing, connected

 

170.

Wires, crossing, not connected

       
 

* redrawn from Teach Yourself Electricity and Electronics (Stan Gibilisco)

  

  Visio stencil available for download