Doing this atari Sequencer and I think there`s an error in the drawing can not see. the atari is working but when I press the switch to ring the Sequencer, the sound disappears. please help. I don`t know if it will solve your problem, but your pin 13 at the 4017 is the INHIBIT pin and should be tied to ground instead of being highas is in the schematic. sorry, my mistake
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was to directly copy the url of the image, so the image was updated and changed without my noticing, I`ll upload the old pictures that I had before the circuit was updated, only to discuss on the subject. source page is this: I opened another Argentina post on a page (this in Spanish), there user "tolemaic" raises a good system of LEDs using transistors, anyway. the interesting thing is that in regard to replacing the switch, the DPDT, this less versatile than the last, because if you choose to sequence the first 555, the second is controlled by LDR (photoresistor), this would not be able to sequence and control the first 555 at the same time. The switches are better in the first version of the circuit. I`ve drawn up a stripboard version of this (version 3). Going to build it in the next couple of days. I`m thinking I might breadboard it first though! Just wondering if anyone here has built it yet I`ve drawn up a stripboard version of this (version 3). Going to build it in the next couple of days. I`m thinking I might breadboard it first though! Just wondering if anyone here has built it yet Yes, I shall post the stripboard drawing. At present it is a pencil on paper job. I am just about to make up the board tonight. If it works, I shall do up an illustration in Illustrator and share. I`m probably not the best stripboarder myself. It`s about getting it into a small footprint I think, which I probably haven`t achieved just...
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