3 Low noise microphone preamplifier circuit using NE5532 LF356
This is Low noise microphone preamplifier circuit using IC-NE5532, M5218P. Simple circuits but high quality balance-Unbalance Input for dynamic microphone Read more
12V-24V PWM Motor controller circuit using TL494 and IRF1405
This is the high quality 12V-24V PWM Motor controller circuit, at current up to 20A,using TL494-IRF1405 for working with soft start, adjust pulse frequency Read more
Electric Fish Shocker Circuits
This is the simple electric fish shocker circuit or fish stunner. It helps in catching fish easier, it use 12V battery to convert to 220V AC. We use few parts so easy and cheap. Read more
2 Traffic light circuits easy to build
The Traffic light controller circuit. use the LEDs for display and the digital circuit as based, include IC-4027,CD4017,IC-555 and so easy and cheap. […] Read more
CD4027 datasheet of Dual J-K Flip-Flop
When we want to use flip-flops with CMOS. Often we meet CD4027. It is dual J-K flip-flops that are monolithic complementary MOS integrated circuits. We have seen many circuits that use them. Of course, making a great circuit we should understand detail of any parts( basic enough). Slow down! If you are beginner. You should … Read more