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Thursday, 27 February 2014

Atari Punk Console Stripboard Veroboard Layout


Another quick one. A favorite among beginners - originally by Forrest Mims
I got an email this morning asking to check over a layout he'd found and also how to add a volume pot so I just did a new layout, built it and made some stupid noises for half an hour and now I'm posting it here.
this is obviously the version that is adapted to use 2 single 555 timers rather than 1 dual 556 timer but it's the same. 

have fun.





14 comments:

  1. Excellent! I've wanted to build one of these for years. Maybe I will now, with a clean new layout, too.

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    1. it's nice an compact too - I've put mine in a cassette box.

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  2. Thanks Paul! I was the one who requested it by email. Thanks to you I didn't build the one with the errors!

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    1. cheers for the idea to relive my youth haha
      this was one of those occasions where it was quicker just to do a new layout than to
      go through someone elses!

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  3. Ok so I just finished my first stripboard project! [Fist pump fist pump] I hooked up a linear, rather than a log (audio), pot for the volume pot and a puff of acrid magic smoke escaped from it! That was scary! I then bypassed the volume pot and made some cool tunes. In fact, this sounds far, far better than the Jameco kit which comes with a PCB and is made with a LM556 timer that I made a couple of weeks ago. That one was quite disappointing compared to this one. Now that I can hear the sounds as they are supposed to sound, I understand why it was given the moniker ATARI Punk Console.

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    1. check that the cut next to C3 doesn't have any whiskers of copper left. there's not enough power to burn out a 470K pot on the output.
      I did make it before I posted to make sure that the volume pot works (I used a linear one myself too)

      however I'm glad your first stripboard project went well other than the volume pot issue - you'll have to build this one next http://www.paulinthelab.com/2013/09/devils-drone-sequencer-veroboard.html :)

      the reason this sounded better than the jameco one is because stripboard is superior ! haha

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  4. Experience is everything! You were right about there being a short near that very cut which I detected with the continuity function on my DMM. The amazing thing was that even under a lighted magnifying lamp, I was unable to visually detect any spurious connection. I just kept carefully running the cut under a spinning drill bit until the continuity was finally broken. I still don't know if it was some solder or some leftover microscopic part of the copper trace causing the short. Regardless, since I have a whole bag of 555's I got off of eBay, I can now make some APC's for my nephew and cousins and maybe get them interested in electronics as well.

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    1. check this for future projects - http://www.paulinthelab.com/p/tips-and-troubleshooting.html
      I got a big bulk lot of 555s (5000 I think) from a grey market seller in china on eBay too - usually you can't go wrong for standard ICs and china bulk sellers. in all of my time buying grey market ICs (op-amps, 555s, CMOS 4000 series/74 series, DCtoDC converters ets) I've never had a bad chip - usually the bad ICs are the ones you have to program.

      once you're a bit more confident you should try this project http://www.paulinthelab.com/2012/10/devils-triangle-drone-synth-stripboard.html (check the sound samples too) people love this one - they love it so much they've even ripped it off !

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  5. Hi paul, how do i connect the pots VR1 and VR2 ? Are they just used as variable resistors? only to lugs need wiring?

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  6. Hi I've just finished this but it's not working and I think it's because I don't really understand the Variable resistor wiring. Should lugs 2 AND 3 of Variable Resistor 1 be connected to the row b, the same question goes for VR2? Or am I misunderstanding the terminology?

    I would guess it should only be lug 2, but I'm probably just misunderstanding your schematic style!

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    1. Also! I have found several other schematics where the polarized capacitor at C3 has the polarities reversed compared to your schematic. I don't doubt that both works but it would be interesting to understand why, because I didn't think a polarized cap would work like that.

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  7. It dont working .
    Why don't work . I solding samp pic strip . I cry

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  8. Se pueden utilizar potenciómetros de 500k???

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