Technology
Sweet function generator build

FreqGen

After checking out the last installment of our Circuit Skills series, Mark Warwick went to work building his own take on the function generator project using a Pelican case + a custom laser-etched front panel. As you can see, the results are quite awesome! Additional infos after the jump –

I’ve had quite a bit of fun making the function generator over the past week or so and I wanted to share the results with you. I used a SPDT to output either “sync” or regular output, and I added a mute button for fun. I decided to box it in a Pelican case (I’m rather fond of them).

Funcgenbuild2 Cc

One of the pictures is shot into a glare so that you can see the panel design more easily [above]. I might experiment with a new panel material to make the writing more visible and hide the electronics – also wondering if there’s anything really cool to do with the amplitude modulation input (would a guitar signal do something to this, for instance?). Anyway, I’m pretty happy with how it all turned out for now! Thanks again for your help along the way.

Hmmm … a well-amplified guitar signal could be interesting (datasheet specifies +/-4V for the amp input, +/-3V for sweep input). I’m guessing even a simple line level signal would be worth trying.

Good stuff – and if anyone has a build to share, please post a link in the comments!

4 thoughts on “Sweet function generator build

  1. If you set it to about 50-60Hz and attach a microphone to the AM input, you can modulate your voice to sound like a Dalek.

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