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can you help me??
i want to determine if a seven segment is cathode or anode?
and i want to make counter from 0 to 9 by these elements(ic4026-7segment-timer555)
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You can use the diode setting on your multimeter to determine the anode and the cathodes. You can also test this by using a power supply in series with a 100 ohm resistor. When you connect the power and it lights up, you found them. The circuit you are asking for sounds an awful lot like a school project...? Nevertheless, I am sure you can find a schematic to help you figure it out if you search on google image search.
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