DIY Function (Signal) Generator

Here is my homemade function generator that can produce a square, triangle, and sign wave. This is all done with a few bucks worth of parts. The heart of the function generator is a LM324N quad OpAmp.

Here is a link to the site where you can purchase the kit or just download the user manual complete with schematic.
http://circuitspecialists.com/prod.itml/icOid/4065

Category:

Science & Technology

Tags:

• electronics
• diy
• signal generator

[ElektroHut]

have you tried any other op-amps. Maybe one with better slew rates, etc? Just wondering.

[filear]

@ElektroHut Nope I have not tried any others, to many other projects to do!

[M1America]

set your trigger

[The1970sInfatuate]

Man, that is frickin' awesome!

[Slovenija12345]

its something wrong if i use polyester capacitors??

[TOmaynardOL]

Hey where in the schematic did you add a light for power?

[jeetendrag10acc2]

could we buy then pre-assembled? i am not too good at assembly and soldering,and i need a lower range signal generator.(not too expensive)

[gypaete09]

Don't know what the four diodes do? They act like a pos/neg voltage limiter (2x0.6V), which due to the diode forward current characteristics transform the incoming triangle wave to a "almost-sinwave".

[jeriellsworth]

Good job.