High power NE555

The famous 555 chip, which is made of transistors, resistors and 2 diodes, is more powerful than the ordinary package 555. The pin definitions are the same as those of the ordinary package 555. It can be used to demonstrate the principle of 555 and conduct circuit experimental tests. It has the characteristics of high power, clear structure, easy repair and reuse, which is very suitable for experimental use. Please download the BOM table in the attachment. Use 2N3904 and 2N3906 for transistors, 8050 and 8550, and 1N4007 for diodes. Resistor 4.7K R14 R0805 1 3.9K R16 R0805 1 220 R17 R0805 1 4.7K R1, R3, R18 R0805 3 830 R2 R0805 1 1K R4 R0805 1 5K R6,R7,R8,R13 R0805 4 10K R10 R0805 1 100K R11,R12 R0805 2 6.8K R15 R0805 1 100 R19 R0805 1 During the actual test, there were several types of resistors that could not be found, so they could only be used The resistors are connected in series to achieve the specified resistance value. During the test, the enameled wire flying wire is used to connect the circuit board to replace the original 555 chip.