Frequency generator

[Rajinder]

Hi i am after a schematic for a frequency/waveform generator. Adjusable frequency and amplitude for sine, square and ramp. Upto 100KHz.
Something which is easy to build.
Any ideas?

 

[Harald Kapp]

Look up "function generator". You'll be rewarded with heaps of circuit designs.

 

[Rajinder]

I have but some use obsolete parts. I was looking for a quick, cheap and easy schematic. That can be knocked up with readily available components. Dont need any microcontroller type.

 

[Alec_t]

I was looking for a quick, cheap and easy schematic.

If you want low distortion, particularly with the sine output, and a frequency range as wide as that the circuit won't be quick, cheap or easy unless you use a digital (microcontroller) approach.
How much distortion can you tolerate?
What voltage and current requirements do you have?

 

[davenn]

I have but some use obsolete parts. I was looking for a quick, cheap and easy schematic.

your requirements and quick and easy are incompatable

 

[Externet]

----> https://www.aliexpress.com/wholesal...90106121319&SearchText=function+generator+kit

Or look for ICL 8038 data sheet/application notes. For sure there is newer chips too.

One of them ----> https://www.maximintegrated.com/en/...ution/silicon-crystal-oscillators/MAX038.html