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Digital LED number display with diode decoding

With this circuit, a seven-segment display can be controlled. The numbers 0,1,2,3,4,5,6,7,8,9 and 0 can be displayed. When using silicon diodes (e.g., 1N4148), the circuit should to be operate at least 12 volts. The indicator LEDs need matching resistors for voltage and display type.

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