The 4 KNOB FLANGE flanger delay clock chip makes building a sophisticated, versatile flanger into a practical project. LFO Rate, LFO Depth and Manual flanger frequency are all variable using 0-5V control voltages. The chip outputs a biphase clock from 25KHz to 500KHz that can drive MN32xx-series delay lines directly.
DIP 8 enclosure.
This chip is included in this kit: Flangelicious 4 knob kit
Here is the link to the datasheet.