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Circuit Schematics
The following are common circuit symbols used on this site. I will add more as they are needed.
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Resistor |
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Variable Resistor |
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Switch |
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Light Dependent Resistor (LDR) |
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Lamp |
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Fuse |
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Diode |
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Light Emitting Diode (LED) |
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Flashing Light Emitting Diode has a built in chip |
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Ground |
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Power supply sine wave line means AC straight line DC the number is the voltage |
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Non-polarised Capacitor |
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Polarised Capacitor |
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Transformer |
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Simple Electronics Formula
| What it does |
Formula |
| Ohms law |
V=IR |
| Two Resistors in Parallel |
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| Resistors in Parallel |
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| Resistors in Series |
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Resistor Colour Codes
| Color
| 1st & 2nd
Significant
Figures
| Multiplier
| Tolerance
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| Black |
0 |
1 |
-- |
| Brown |
1 |
10 |
±1% |
| Red |
2 |
100 |
±2% |
| Orange |
3 |
1,000 |
±3% |
| Yellow |
4 |
10,000 |
±4% |
| Green |
5 |
100,000 |
-- |
| Blue |
6 |
1,000,000 |
-- |
| Violet |
7 |
10,000,000 |
-- |
| Gray |
8 |
100,000,000 |
-- |
| White |
9 |
-- |
-- |
| Gold |
-- |
0.1 |
±5% |
| Silver |
-- |
0.01 |
±10% |
| No Color |
-- |
-- |
±20% |
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Copyright 2002 Ben Calcott, All Rights Reserved.
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