Offline
Murcia, Spain
ashimoke wrote:

By original I mean the one you refered to in your first post.

Got it now. Everything makes sense. The only thing I'm still asking myself is why those diodes instead of regular LED's? As I said, I like the LED's turning on and off.

I'll probably first make up the APC and whenever I find more time I'll join it with the step sequencer : )

Offline
Murcia, Spain

After a lot of research, I've found a clearer schematic of the mod:

Link: http://owyheesound.com/img/atari_punk_console.png

And there's a problem there. I don't exactly know what the DPDT switch is doing there, so don't know how could I substitute it. Around here it's impossible to find one of those. Someone?

Last edited by DogTag (Oct 20, 2012 6:12 pm)

Offline
Tacoma WA

order one off mouser?

Offline
Austin, Texas

DPDT switches should be easy as hell to get, I am pretty sure you can get at least one type at RadioShack.

Offline
Murcia, Spain

But can't it be replaced with a regular "stick" switch? And I don't really get what the DPDT switch is doing there... Any idea?

Last edited by DogTag (Oct 21, 2012 8:43 am)

Offline
Czech republic

It switches the way you control each 555 oscilator. In one position OSC A is controled by the sequencer and OSC B is controled by the photoresistor or 500k pot (switchable). The other position makes it go the other way around. You can forget about the switch and have the controls fixed or you can order something like this for one $:
http://www.ebay.com/itm/AC-250V-2A-DPDT … 53eee15af0

Offline
Murcia, Spain

@ashimoke Thank you for explaining! I can get one of those locally, didn't know they were the same as standard 6 pin switches. Still, how would the wires be connected in a 6 pin switch? In the pic they only use 4, and it confuses me.

Offline
Czech republic

1 ... 2
3 ... 4
5 ... 6

Connect 1 and 6,
connect 2 and 5.

Wires go to 1, 2, 3 and 4.

Last edited by ashimoke (Oct 21, 2012 9:55 am)

Offline
Murcia, Spain
ashimoke wrote:

1 ... 2
3 ... 4
5 ... 6

Connect 1 and 6,
connect 2 and 5.

Wires go to 1, 2, 3 and 4.

After thinking it through... I understand! : D
Thank you very much! For a novice in electronics like me this tiny things are of much help.

I'll let you guys know whenever I have news. I'll try to build this thing relatevely soon, depending on how much spare time I can find.
Thanks to everyone who's replied : )

Offline
Murcia, Spain

Hey guys.

I finished the simple APC, and wanted to share the result with you:
http://www.youtube.com/watch?v=7Jrn9SLX … redirect=1

I can't wait to have some spare time (actually I'll need plenty really xD) to try the mod. I'll make it from scratch, so that when I finish it, I'll have a simple version and then the one with the sequencer.
Thanks everyone for your help!