how to repair severed particle board furniture

-
The below video shows you how to fix water-damaged particle board furniture. A particle board is a low-cost and light material but it is easy to swell by water so I have two choices, buy a new one or fix it and I choose to fix it and share the instruction with you. I hope you like it.

Comments

Post a Comment

Popular posts from this blog

Resistor color code

-
Image
A resistor is the most important electrical component in almost every electronic circuit, it can limit current to any load such as led, transistor, op-amp, etc.  We must read the resistor color code if we want to know the resistive value, tolerance, temperature coefficient. Resistors have different color bands (3,4,5,6) the more color bands the more resistor information. Now let's start with 3 bands resistor color code. The above resistor has only 3 bands First digit, Second digit, and multiply. A 3 bands resistor color code has a fixed +/- 20% tolerance which means if the color code value is 1,000 ohms the real-life resistive value may be +/- 200 ohms.  4 band resistor color code A 4 bands resistor color code has a tolerance value color strip, the resistor on the above picture has 5% tolerance. This type of resistor uses in a regular circuit such as television, radio, washing machine. 5 bands resistor color code A 5 bands resistor colo...
Read more

How to add power supply filter capacitor to amplifier board.

-
Image
I saw a new comment on my video, he asked me how to add a filter capacitor to amplifier board D.C. power supply. I think it's a good question so I will explain it here. What is a power supply filter capacitor? It is the capacitor that used to filter AC ripple from DC power supply present to amplifier board. If an amplifier has low capacitive power supply capacitor, it may present a little hum(50/60 Hz low-frequency sound) that you can hear in a quiet room. The capacitor also stores power and bring it instantly to your amplifier when an amplifier needs more power for a short period of time such as  explosion sound in a movie. However, If an amplifier has high-frequency power supply noise from a switching power supply, small capacitor need to parallel to a power supply and must be attached close to power amplifier IC as much as possible. Below pictures are the place that you add power supply capacitor. PAM 8610 board amplifier powe...
Read more

How to connect volume control to an amplifier

-
Image
I saw a comment on my Youtube video, he asked me how to connect any amplifier module to a volume control or potentiometer. I think so many people who want to start an electronic project must know this basic wiring too, I hope this wiring diagram will help an electronic DIYer like me. First thing you need to know: use shield wire for an input signal to volume control and from volume control to amplifier if you don't want you amplifier suffers from parasitic oscillation (sound like JeeeeJeeeee). keep a wiring as short as possible. use low resistive value volume control (5-10 kilo-ohms) if the amplifier has random parasitic noise when you turn a volume control up or down. volume control is a potentiometer. Volume control principle is a signal divider, the more volume control output(yellow line) near input signal source(pink line) the most signal flow to an amplifier. When you lower a volume control the resistive va...
Read more

5 watts amplifier TDA7056A wiring diagram

-
Image
TDA 7056 A is an audio power amplifier IC that has 5 watts output power with 8 ohms speaker and 3 watts with 16 ohms speaker. The IC is simple to wiring and needs only 6 external components to make the amplifier working. TDA 7056A working with a power supply between 4.5 - 18 volts so the IC can use a battery as power supply. if you use more than 9 volts, you need to attach small heat sink to the IC. TDA7056A has a built-in DC volume control so you can control the gain of the amplifier by changing voltage value at DC volume control pin by use a potentiometer. DC volume control makes you connect the audio signal directly to the amplifier input so it makes a sound more transparent and cleaner than a normal amplifier.  The IC has a short circuit protection, over temperature protection, No switch-on/off clicks, ESD protected on all pins, Mute mode (The IC switch mode when DC volume control pin voltage lower than 0.3 volts)  TDA 7056A has a very wide audio bandwidth 20 H...
Read more

how to make condenser microphone pre-amplifier

-
Image
I saw a comment on my youtube video that he want to connect condenser microphone directly to pam8610 amplifier board. However, if he needs to connect condenser microphone to any amplifier board he must bias and amplify the signal before. Now let's start!!! Condenser microphone need a power supply to bias circuit inside that why we need specific preamplifier for it. You need two electronic component to make condenser microphone to operate  1. 2 to 10 kilo-ohms resistor 2. Capacitor uses to blocking dc current to preamplifier See picture below for better understand. However, an output signal from the microphone is very small and need to amplify with any preamplifier before connecting to amplifier board. Now, let's start making and preamplifier. -------------------------------------------------------------------------------------------------------------------------- Above picture shows how to bias opamp for single power supply (V+ and Ground) ...
Read more

4 life hack you may not know

-
Image
Hello, today I will show you some life hack and repair that you never known. The methods time in the video shown below. 0:07 hack empty lighter to work again 0:35 Speaker dust cap repair 1:16 temporary increase smartphone sound volume 1:27 emergency cellphone stand
Read more

How to build high current hall effect sensor

-
Image
I published hall effect sensor circuit diagram and my audience asked me how to make a hall effect sensor that has a high current capability, so I made it for him and for all of you who want to build high current hall effect sensor. Normally, hall effect sensor used for detect magnetic field and send output to a microcontroller, that means any hall effect sensor doesn't need to have high current output. However, if you want to drive motor or any high current device without a microcontroller, this circuit is the best for you. List of components for this project: 1 x IRF 9540N (P channel MOSFET) 1 x A3144 hall effect sensor 1 x 1 kilo-ohms resistor 1 x 10 kilo-ohms resistor optional (use for led indicator) 1 x 1 kilo-ohms resistor 1 x White, red, blue or any other low current led Note: all resistor for this circuit is 1/4 watt, 20 % tolerance is ok with this circuit. The principle of this circuit: When hall effect sensor detects magnetic ...
Read more

how to make a website

-
Image
Hello, everyone. I'm going to show you the easiest ways to create your own website, you don't need to know deeply Html PHP or another complicated website code and you don't need to pay much money to make it. You Blogger | Free for life Sign up your google account and paste this address into your browser's address bar  https://www.google.co.th/intl/en/about/products/  and click Blogger. Now, you are on blogger page, it's time to create a website. All you have to do is simply click New blog icon as shown in an image below. Choose your website title, a website's address, and website template. Now, start writing your first post by click New post. Write a little and add Label(it's work like a tag in WordPress) and click publish. Now your first website is online. However, free website template from blogger is not the best template you can download free blogger template on the internet and follow my instruction below. Find b...
Read more