[sdiy] neat info for generating square/pseudo-sine/triangel

[cacofone]

Found this kit:

No. 80-230 OpAMP Function Generator
A very low cost and simple circuit to generate square, pseudo-sinewave and 
triangular waveforms in the Audio frequency range. Uses a quad opamp LM348. 
Good educational kit.

at http://www.hobbyelectronics.com/cuesedu.html



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