The Electronic Industries Alliance was an American standards and trade organization composed as an alliance of trade associations for electronics manufacturers in the United States. They developed sta
SCART connector on an RCA Dimensia with EIA text
RMA Resistor Color Code Guide, circa 1945–1950
Electronic color code
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An electronic color code is used to indicate the values or ratings of electronic components, usually for resistors, but also for capacitors, inductors, diodes and others. A separate code, the 25-pair
Electronic Industries Alliance
…EIA 1956 resolution chart Electronic color code – RMA Resistor Color Code E series of preferred numbers – RMA Preferred Number Values of Fixed Composition Resistors…
A 2.26 kΩ, 1%-precision resistor with 5 color bands (E96 series), from top, 2-2-6-1-1; the last two brown bands indicate the multiplier (×10) and the tolerance (1%).
Example color-coded resistors
Postage-stamp mica capacitors marked with the EIA 3-dot and 6-dot color codes, giving capacitance value, tolerance, working voltage, and temperature characteristic. This style of capacitor was used in vacuum-tube equipment.