This is a simplest slave flash trigger circuit. It will help the slave flash immediately works almost simultaneously with the main flash. This circuit better than others circuits because without the external power supply. Read more
SEE! TDA2030 audio amplifier circuit. To make many amplifier 10W to 120W. Mono or Stereo and OTL, OCL, BCL (Bridge amplifier) I love it Read more
This is inverter 12V to 220V that 100W output using all BC557 PNP and 2N3055 transistors so easy to build and cheaper, we use 12V 10Ah and transformer 5A up. […] Read more
This circuit is an automatic reverse polarity switch. If we apply DC voltage to any electronic circuits in the wrong polarity. It can be caused by too much current. You must waste time to reverse the new terminal. If your circuit is important, let’s build this project to your life will better. Automatic Reverse polarity … Read more
Good tool! The ultimate solution to the problem. Read more