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Triangle core breadboarded

A project log for 7Wave Oscillator

A bench top oscillator which outputs seven different waveforms. Many waveform parameters are controllable.

Adam GulyasAdam Gulyas 07/27/2014 at 08:390 Comments

I've started prototyping. The first thing to do is make what I'm calling the triangle core. It's the only circuit that's generating an independent waveform. Everything else is a type of wave shaping.

I made a breadboard layout (If anyone knows of a better program than PEBBLE to use, please inform):

And then I put it on the breadboard:

Here's a video of the triangle and square waves changing frequency and symmetry (duty cycle):

http://youtu.be/w_oxIqUgWuA

The triangle sides aren't straight. I suspect either the capacitor or weird diode things. Also, the frequency range isn't as wide as I would like it. I suspect the diode of dropping too much voltage.

In any case, further testing is required!

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