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ICL8038 Function Generator

Excellent Chinese kit of a function generator based on the ICL8038 IC.

ICL8038 function generator kit for sale on AliExpress

ICL8038 kit assembly, photo 1

ICL8038 kit assembly, photo 2

ICL8038 kit assembly, photo 3

ICL8038 kit assembly, photo 4

ICL8038 kit assembly, photo 5

It has quite interesting characteristics, such as an operating frequency from 5 Hz to 400 kHz and offset, duty cycle, amplitude and frequency adjustments. The operating range is selected with a jumper, which is not a problem for my occasional use. There is one square wave output and another selectable between triangle and sine.

ICL8038 function generator schematic

Symmetric supply schematic (±9 V)