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Astable multivibrator using NAND gates

Astable multivibrator using NAND gates

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  •  September 26, 2020
  •  Astable multivibrator using NAND gates
  •  Posted by Marcel at 10:20 am
  •  No Responses
  •  Circuit diagrams
  •  Tagged with: nand gate

This astable multivibrator uses two NAND gates of the 4 available on the 7400 TTL integrated circuit. Two LEDs are used to view the status or logic output of each gate.

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LED Sequencer using 4017 Decade Counter (LED Chaser)

LED Sequencer using 4017 Decade Counter (LED Chaser)

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  •  September 8, 2020
  •  LED Sequencer using 4017 Decade Counter (LED Chaser)
  •  Posted by Marcel at 5:11 am
  •  No Responses
  •  LED Circuits
  •  Tagged with: 4017, nand gate, oscillator

LED Sequencer using 4017 Decade Counter (LED Chaser). This circuit has 10 LEDs connected to the decade counter outputs. LEDs light up in sequence. Only one LED is ON at a time

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Clock signal generator using 7400 IC (PCB)

Clock signal generator using 7400 IC (PCB)

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  •  September 10, 2019
  •  Clock signal generator using 7400 IC (PCB)
  •  Posted by Marcel at 12:48 pm
  •  No Responses
  •  Circuit diagrams
  •  Tagged with: 7400, nand gate

Clock signal generator using 7400 IC. This clock generator is an astable circuit which uses the TTL 7400 (four 2 inputs NAND gates) integrated circuit. Suggested Printed Circuit Board (PCB)

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