Electronic Circuit DIY Production Analog Telegraph DIY Spare Parts Welding Training DIY Kit
Feature:
Product name:analog transmitter
Supply voltage:DC5V
PCB size:36*28mm
Note:This kit requires self-assembly
Principle:
This kit consists of NE555 and its peripheral devices to form a time base circuit, the key K controls the power on time, makes the buzzer sound, and simulates the telegraph sound.
Package includes:
1 x DIY Kit
List | ||
Component name | Component position | Quantity |
1/4W Resistor 1K | R1 | 1 |
1/4W Resistor 10K | R2 | 2 |
1/4W resistor 4.7K | R3 | 3 |
Ceramic capacitor 333 | C1 | 1 |
Ceramic capacitor 103 | C2 | 1 |
Electrolytic capacitor 100uF/25V | C3 | 1 |
5MM red LED | LED | 1 |
Touch button 6*6*5MM | K | 1 |
In-line NE555 chip | U1 | 1 |
3x AA battery boxes (battery not included) | 1 | |
PCB board | 1 |
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