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COL
means Characteristic Orange Luminescence in
Electronics
Similar to COL
3SR
- Three Station Rotating
4P4T
- Quad-Pole Quad-Throw
4W
- 4-Watt Resistor
4WA
- Four Wire Analog
4WAI
- 4-Wire Analog Interface
4WH
- Four Watt-Hour capacity
4WJ
- Four-Way Junction
View all in Electronics