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2025-10-18 10:44:21 +00:00
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@@ -21,7 +21,7 @@ Parts required to make the flip-flop circuit are:
- 2x 100 kΩ resistors - 2x 100 kΩ resistors
- 2x BC547 transistors - 2x BC547 transistors
> [!TIP] > [!NOTE]
You can choose LEDs of any color. You can choose LEDs of any color.
### Assembly ### Assembly
@@ -38,7 +38,7 @@ Attached are images and a file that can be opened in the Fritzing software (from
Q1 and Q2 are the BC547 transitor. Alternatilvy the equivalent 2N2222A can be used, it has slightly more gain than the BC547. Q1 and Q2 are the BC547 transitor. Alternatilvy the equivalent 2N2222A can be used, it has slightly more gain than the BC547.
> [!IMPORTANT] > [!IMPORTANT]
> If you decide to use the 2N2222A, you will have to be mount it rotated 180 degrees as it's pin out is the other way round than that of the BC547. > If you decide to use the 2N2222A, you will have to mount it rotated 180 degrees as it's pin out is the other way round than that of the BC547.
The blinking interval is determined by the values of the two 100 kΩ 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 100 kΩ resistors and that of the two capacitors as per the formula: T = R x C