| << Introduction |
Next, we have described the components that we are going to use. For ease of identification, I have made a small drawing of each component, to eliminate confusion.
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COMPONENT 1 |
DRAWING |
| 10 diodes 1N4148 |
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COMPONENT 2 |
DRAWING |
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1 resistor 4,7 k 1/4 W or less (R1) |
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COMPONENT 3 |
DRAWING |
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1 Resistor 100 k 1/4 W or less
(R2) |
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COMPONENT 4 |
DRAWING |
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1 Resistor 10 k 1/4 W or less (R3) |
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COMPONENT 5 |
DRAWING |
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1 Resistor 2,2 k 1/4 W or less
(R4) |
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COMPONENT 6 |
DRAWING |
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1 ceramic capacitor 100 pF (C1)
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COMPONENT 7 |
DRAWING |
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1 transistor PNP BC559 or 2N3906 (T1) |
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COMPONENT 8 |
DRAWING |
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2 CMOS 4006 |
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COMPONENT 9 |
DRAWING |
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1 prototype board |
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COMPONENT 10 |
DRAWING |
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1 male DB-25 connector with cover |
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COMPONENT 11 |
DRAWING |
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1-2 meters of wire with 10 conductors |
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In addition to all this, obviously you will need a soldering iron, solder and a meter for the verifications.
