See Voltage-Controlled Filter.
Vaginal Contraceptive Film. This is a form of birth control used by women. It's a very thin square that dissolves quickly in the vagina and releases a spermicide that kills sperm.
Voltage controlled filter. See Voltage control.
Voltage Controlled Filter - a device that removes unwanted frequencies from a signal, dependent on the voltage applied to it.
Voltage-controlled filter. A filter whose cutoff frequency can be changed by altering the amount of voltage being sent to its control input. Also, the digital equivalent of a VCF.