Electronic Circuit DIY Production Analog Telegraph DIY Spare Parts Welding Training DIY Kit

SKUJ39928

8 Reviews

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Description

weight: 485 g

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 665MM	K	1
In-line NE555 chip	U1	1
3x AA battery boxes (battery not included)		1
PCB board		1

Electronic Circuit DIY Production Analog Telegraph DIY Spare Parts Welding Training DIY Kit

More Details

customers reviews ( 8 )

4 / 5.0

5 stars 87.5%

4 stars 12.5%

3 stars 0%

2 stars 0%

1 stars 0%

View All Reviews (8)

By tonotronic

Buena relación calidad/precio.

2023-04-20 00:00:00

By BG491336443

I bought this product. The printed circuit board is of very poor quality. Copper lines cannot withstand a 30W soldering iron. The lines are leaving the epoxy. The copper lines are very thin. The islands to be soldered are very small. I'm working on the circuit. When the button is pressed, the LEG lights up. I couldn't get any sound from the circuit.

2023-03-30 00:00:00

By BG163339394

Its going to be a good project! thank you

2023-03-27 00:00:00

By camilosoveral10

Olá, entrega rápida em 15 dias mais ou menos na minha morada, bem embalado e sem problemas. Placa de circuito impresso muito bem feita com as indicações de montagem na própria placa. Atenção que deve ter alguns conhecimentos eletrónicos de reconhecer e soldar os componentes. Irei montar o circuito mais tarde. Obrigado Banggood

2023-03-21 00:00:00

By neodmj52

半田付けの練習。特別重宝とはならない。

2023-02-14 00:00:00

By Andris_b0

good delivery

2022-10-28 00:00:00

By marcar

Very simple circuit for initiation. As described; changing C1 and/or R2 youcan change the pitch tone of it.

2022-10-02 00:00:00

By Johadart

Item/s are as described, exactly what I purchased, very well packaged also very quick shipping and delivery, recommend the seller A+++++

2022-09-25 00:00:00

Electronic Circuit DIY Production Analog Telegraph DIY Spare Parts Welding Training DIY Kit

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