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@@ -14,8 +14,8 @@ A great candiate for a soldering workshop becuase it is gratifying with the blin
Parts required to make the flip-flop circuit are: Parts required to make the flip-flop circuit are:
- 2x LEDs - 2x LEDs
- 2x 10 μF capacitors - 2x 10 μF capacitors
- 2x 470 Ohm resitors - 2x 470 Ω resitors
- 2x 100 kOhm resistors - 2x 100 kΩ resistors
- 2x BC547 transistors - 2x BC547 transistors
you can choose LEDs of any color. you can choose LEDs of any color.
@@ -36,9 +36,9 @@ Q1 and Q2 are the BC547 transitor. Alternatilvy the equivalent 2N2222A can be us
The blinking interval is determined by the values of the two 100kOhm resistors and that of the two capacitors as per the formula: T = R x C The blinking interval is determined by the values of the two 100kOhm resistors and that of the two capacitors as per the formula: T = R x C
Example values: Example values:
- 100 kOhm x 10 μF = 1.0s - 100 kΩ x 10 μF = 1.0s
- 10 kOhm x 10 μF = 0.1s - 10 kΩ x 10 μF = 0.1s
- 100 kOhm x 1 μF = 0.1s - 100 kΩ x 1 μF = 0.1s
J1, J2, J3 are optional. Use them to pick up the square waves and display them on a oscilloscope. J3 is ground. J1, J2, J3 are optional. Use them to pick up the square waves and display them on a oscilloscope. J3 is ground.