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Description: The SparkFun SparkPunk Kit is a sound generator made in the spirit of the Atari Punk Console. Rather than simply recreating the Atari Punk, the SparkPunk is a new design that springs from a similar foundation. It starts with a dual 555 timer IC, then adds a second tone source, sub-octaves and a bandpass filter. With all of the knobs and switches, a lot of tonal variations are possible. As a through-hole kit, the SparkPunk can also be easily extended and modified, expanding the palette of tones even further.

The SparkPunk is a very simple synthesizer, using the somewhat conventional arrangement of oscillators that feed a filter. All you need to know to play this sound generator is to press the button, operate the control knobs, listen to the results, and adjust your music to how you want it. The SparkPunk is intended for you to explore and have fun! Some people are drawn to mellow, soothing sounds, while others prefer clangourous tones, and that’s fine, to each their own. With all of the controls, you should be able to explore both ends of the spectrum.

In addition, the SparkPunk is quite customizable as well. Any knob with a 0.25" inner diameter can be attached to the tops of each potentiometer, external speaker lines can be soldered into the board for a more permanent sound distrobution option, and photocells can be added to control the kit without actually touching it. There are plenty more optional modifications that can be added and played with.

Note: Check the Hookup Guide in the Documents section below for assembly instructions and helpful tips and tricks for your SparkPunk.

Features:

  • Operating Voltage: 9V
  • PTH Soldering Kit
  • Dual Oscillators & Sub-Octaves
  • Analog Expansion Port
  • Sweepable Band Pass Filter
  • Hackable

Kit Includes:

  • 1x SparkPunk PCB
  • 1x ICM7556 Integrated Circuit
  • 1x CD4013BE Integrated Circuit
  • 2x LM358 Integrated Circuit
  • 1x 10K Ohm Dual Potentiometer
  • 3x 10K Ohm Potentiometer
  • 1x Red LED Tactile Button
  • 5x Mini Power Switch
  • 1x 1N5819 Schottky Diode
  • 2x 1N4148 Silicon Diode
  • 1x 1M Ohm 1/4W Resistor
  • 1x 1K Ohm 1/4W Resistor
  • 2x 470 Ohm 1/4W Resistor
  • 5x 10k Ohm 1/4W Resistor
  • 5x 100k Ohm 1/4W Resistor
  • 1x 0.47uF Ceramic Capacitor
  • 3x 1uF Ceramic Capacitor
  • 5x 0.1uF Ceramic Capacitor
  • 7x 10uF 25V Electrolytic Capacitor
  • 1x 3.5mm Audio Jack
  • 1x 2-56 Nut
  • 1x 3/8" 2-56 Phillips Machine Screw
  • 1x 9V Alkaline Battery
  • 1x 9V Battery Holder

Documents:

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Customer Comments

  • While putting mine together yesterday I found out that the box it comes in is magical. I put some standoffs on it and mounted the board to the box and it magically assembled itself. Should really have that in the description, would save people a lot of time putting it together.

    http://youtu.be/0qIaUPwvTAQ

  • Here’s my write-up on this kit. Lots of fun. SparkPunk

  • Planning on wiring the Gram Piano into this thing, any tips or anything I should watch out for?

    • If you want the simplest connection:

      • Tie the grounds on both boards together.
      • Remove the speaker from the Gram Piano.
      • Run a wire from the GP’s speaker ‘+’ terminal to the ‘IN’ terminal on the SP.

      If you turn off all the waveform selector switches, you ’ll get the Gram Piano output, as filtered by the SparkPunk filter. If you turn on the waveforms, you get the GP mixed in with the SparkPunk.

      If you’re a little more adventurous, you could put a potentiometer in between, configured as a voltage divider, to give you an input volume control.

  • I really enjoyed making this kit. This was my first time soldering IC’s, and after this kit I feel much more confident in my soldering skills overall! The way the pitch changes regardless of the position of the switches makes me wonder if I didn’t hook it up correctly even though I can definitely tell a difference in the knobs' behavior when P1 or P2 is on. Overall, I’m very satisfied with this purchase, especially for it being a fun kit that left me feeling more skilled after I was done!

    • I’m glad to hear you enjoyed making your SparkPunk!

      If you’re concerned that it might not be working correctly, try the following:

      Turn on P1, and turn off the other switches, and press the button. The Pitch1 knob should change the pitch, and you shouldn’t be able to hear any response to turning Pitch2.

      Then reverse that - turn off P1, and turn on P2. Now Pitch2 should change the pitch, and Pitch1 won’t have any influence.

      Then, turn off all four switches and press the button. You shouldn’t hear much of anything - maybe some quiet background hiss.

      If you can try that and report back, I can confirm whether it’s working, or help you sort out what is going on. You may have inadvertently found your way into circuit-bending territory!

  • Yah, if you could just, make a video that shows the difference between this and a regular APC, that’d be great.

    Clearly it’s not just “Here’s the APC, now with 10% more squealing!” - your modifications, presumably, have added some sort of tangible change to the sound of the device, right? How about a video where you explain, with audio demonstration, what that difference is? Maybe use an oscilloscope to show how the second tone source affects the interplay of the oscillators? How deep do the sub-octaves get? Can this generate serious bass?

    Your little tune is cool, but not particularly useful.

  • I really do want to see some schematics on that 4-channel DIY mixer.

  • Just ordered it(SparkPunk)!!! [EEKS!!!] [JUMP WITH JOY!!!]

  • Are you guys putting together a mixer kit too, or just the console?

  • How did Sparkfun get inspiration on this kit?

  • Sooo… Atari came up with it? And is it like a game console? Still a bit confusing.

    • No, its been around for a while and it sounded like an Atari (thus the name). Its a noise maker (check out Rob’s link below)

  • Now it just needs a Vocoder.

  • An Atari what Console? I have never heard about that…

      • Sooo… Atari came up with it and it is a game console package?

        • The original dual-555 circuit was designed by Forrest M. Mims. It’s in several of his old books, usually called something stoic like “tone generator.”

          Some lo-fi/noise musicians started building the Mims' circuit, and the name “Atari Punk” was applied, probably because it sounds like the primitive pulse-train sounds that a 2600 made. Games like Combat and Night Driver.

          It has nothing to do with Atari Co or their products, and isn’t a game in itself.

          The SparkPunk is pretty different from the Mims' APC design. The biggest similarity is that it’s something small that takes a 9V battery and makes electronic sounds.

        • I actually built a similar sort of sequencer back in the 70s with a 555, counter, 1-of-16 decoder, 16 trimpots, and another 555 as the audio oscillator. It sort-of worked, but the pots interacted some, the TTL decoder didn’t really pull things down to ground very well, and it wasn’t nearly as configurable as yours. Ah, memories.

Customer Reviews

5 out of 5

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Great Little Synth

This is a fun little guy who has quite the sound. Spent hours with friend trying our best to recreate popular hits.


The SparkPunk Sound Kit

Sparkfun mails your order post haste! I was so happy b/c my electronics class were making these together and I really messed my first one up, and when I ordered one on my own, these folks made sure it was sent right away, and this is just regular mail, not express, or fast.

Thanks peeps at Sparkfun, I look foreword to checking out other products from you!

Funky Chicken (^_^)


Related Tutorials

SparkPunk Hookup Guide

June 12, 2014

How to assemble and modify the SparkPunk Sound Generator kit.