Category Archives: Digital Circuits

NAND Gate Clock Generator

The following scheme is the clock generator circuit diagram which build based on NAND Gate logic IC. You may use IC 7400 or 4011 for this circuit. The 7400 is a Transistor-Transistor Logic (TTL) type, while 4011 is Complementary metal–oxide–semiconductor (CMOS) type. IC 4011 is cheaper than 7400 but the 7400 is faster than 4011.… Read More »

18 Watt Audio Amplifier with HA13118

This is a 18 Watt audio amplifier circuit based on power IC HA13118. The supply voltage required for this circuit is 8 – 18V DC, at least 1 to 2 Amps. Maximum output power will only be obtained with a power supply of 18V at greater than 2 A, using a 4 ohm speaker. The… Read More »



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