Chip Hall of Fame: Intersil ICL8038 Waveform Generator – IEEE Spectrum

https://spectrum.ieee.org/semiconductors/devices/chip-hall-of-fame-intersil-icl8038-waveform-generator

Intersil’s ICL8038 integrated circuit was designed to meet the need for a convenient way to obtain a precise waveform, capable of simultaneously generating sine, square, and sawtooth waveforms with only a few supporting external components.
After some time 8038 became a major hit. I remember that IC because I used it for my first function generator I built sometimes in late 1980′s – I still have it in working condition in my electronics lab.