The 1413 is not only a precision standard,
it is a systems component as well - connections are made at the
rear for this purpose.
Six precision decades are employed to provide a
range of 0 to 1.11111 µF in increments as small as 1 pF
and with an accuracy of 0.05% + 0.5 pF. Air capacitors are used
for the two lower decades and precision silvered-mica capacitors
are used for the remainder.
The lower four decades contain adjustments that are factory set
but accessible for readjustment later if desired.
The shielding is divided into two parts arranged
to provide low terminal-to-guard capacitance. When the two shields
are connected together, the 1413 becomes a well-shielded three-terminal
capacitor with an extremely low zero capacitance, suitable for
variety of applications |
;)
