At first Fender used on the Stratocasters the Cornell Dubilier 0.1µF paper oil capacitors, recognizable for the writing "ZNW1P1 .1MFD 150VDC C-D"; at first brown, they were gradually replaced by those white in 1959.
In 1961 Fender started to gradually replace them with the 1µF round ceramic ocher color ones, recognizable for the writing "SK .1X 50V", used during all '60s, though in 1962 it is still possible to find paper oil capacitors.
In 1968 Fender started to use other capacitors, no longer 1µF, but 0.5µF; they could have different shapes, but the most common was the yellow lentil shape, on which there was written "20% D .05 100V" or "80-20 D .05 50V", or the polyester green chicklet by Nissei, which you can find only on 1968 Stratocasters.
Other capacitors also were used in the '70s, including a cylindrical 1µF one.
In 1983 the Standard Stratocaster known as "2 Knobs Stratocaster" was equipped with 0,022µF capacitor.
In 1961 Fender started to gradually replace them with the 1µF round ceramic ocher color ones, recognizable for the writing "SK .1X 50V", used during all '60s, though in 1962 it is still possible to find paper oil capacitors.
In 1968 Fender started to use other capacitors, no longer 1µF, but 0.5µF; they could have different shapes, but the most common was the yellow lentil shape, on which there was written "20% D .05 100V" or "80-20 D .05 50V", or the polyester green chicklet by Nissei, which you can find only on 1968 Stratocasters.
Other capacitors also were used in the '70s, including a cylindrical 1µF one.
In 1983 the Standard Stratocaster known as "2 Knobs Stratocaster" was equipped with 0,022µF capacitor.