Historical
IEC 60063 Ed. 2.0 b:1963
Preferred number series for resistors and capacitors. Second edition (1963) incorporating Amendments No. 1 (1967) and No. 2 (1977)
Gives preferred values for fixed resistors and capacitors for ordinary and close tolerances of resistors and capacitors used in electronic equipment.
Content Provider
International Electrotechnical Commission [iec]