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--- atari_punk_console [2011/10/05 23:28] – Added circuit and way it works. herman
+++ atari_punk_console [2018/12/30 00:13] (current) – external edit 127.0.0.1
@@ Line 3: / Line 3: @@
 Inspired by countless praises about the [[http://en.wikipedia.org/wiki/NE555|555 timer]] and [[http://electro-music.com/forum/topic-25946.html|several]] [[http://compiler.kaustic.net/machines/apc.html|online]] [[http://www.robthefiddler.com/electronics-audio-diy/circuit-experiments/atari-punk-console/|descriptions]] of [[http://www.getlofi.com/?page_id=1395|Atari]] [[http://www.jameco.com/Jameco/PressRoom/punk.html|Punk]] [[http://www.google.nl/search?aq=2&oq=punk+atari&gcx=c&ix=c1&sourceid=chrome&ie=UTF-8&q=punk+atari+console+breadboard|Consoles]].
-Most designs use the 556 timer, which is two 555 timers in a convenient package. I came across some 555's [[http://www.iprototype.nl|online]] and decided to go this route. I ordered 4 so I would have enough and after they arrived I set to work. I was hoping to finish it in one evening so I could get on with my [[phone]] project but it was 3 evenings after all. The delay was mostly because I chose a tiny and inconvenient form factor housing to build the project in, a parmesan cheese shaker that fit a speaker I had laying around perfectly.
+Most designs use the 556 timer, which is two 555 timers in a convenient package. I came across some 555's [[http://www.iprototype.nl|online]] and decided to go this route. I ordered 4 so I would have enough and after they arrived I set to work. I was hoping to finish it in one evening so I could get on with my [[classic phone]] project but it was 3 evenings after all. The delay was mostly because I chose a tiny and inconvenient form factor housing to build the project in, a parmesan cheese shaker that fit a speaker I had laying around perfectly.
 First I breadboarded a crude version together using only photoresistors. That one worked fine (after a bit of tinkering and letting the [[http://en.wikipedia.org/wiki/Magic_smoke|magic blue smoke]] out once because of a 12v powersupply, whoops.)
@@ Line 16: / Line 16: @@
 I based it on the circuit by [[http://www.robthefiddler.com/electronics-audio-diy/circuit-experiments/atari-punk-console/|Rob the Fiddler]].
-{{:apc_-_circuit.jpg|}}
+{{:apc_-_circuit.jpg|Rob the Fiddler's circuit}} {{:s_apc.gif|The version from Koustic machines}}
+.1uF = 100nF (code:104)
+.01uF = 10nF (code:103)
 I replaced one potmeter with a photoresistor(not pictured). The two pushbuttons are from this mod I found on [[http://www.getlofi.com/?page_id=1395|getlofi.com]]. They select different caps for the first 555. The result isn't spectacular yet on my version but this might be because my potmeter doesn't have that much resistance. I'm going to experiment further.
 One slideswitch is to power it on, the other selects the output, line or speaker. The line output is modeled after [[http://compiler.kaustic.net/machines/apc.html|this circuit]], it's a little weak but no problems yet.