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20 Watt Stereo Amplifier-simple and Very Cheap
Simple Audio Amplifier - DIY
Simple Audio Amplifier
Building an Audio Amplifier
HI-FI 4 Channel Audio Amplifier VERY Simple and CHEAP!!!!
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hey tutdude98. thanks for answering me. that battery was died. i have another one. 12V 1.4AH Maintenance-free sealed lead-acid and dry. i fill the cells with rain water. wait for 24 hours. and charge it with 15V. in first minutes it takes just 0.1A (100mA) from power supply. but in 3 hours it reached to 2.15A. when it was on 2.15A it seems like boiling water inside of battery and rubber caps jump from cells and make a bad smell. after charging i use the battery with 12V 2A Car Lamp and it make it glow perfectly. voltage was 11.08.this is how the voltage get down.4:15PM : 11.084:35PM : 9.094:45PM : 6.58and finally after 24Hours its get down to 0.0Volt.i cant understand this battery!any help would be appreciated.thanks again for answering my comment.
you can buy from any electrical stuff stores. the terminals are not expensive. you can buy some and use in your works. also you could find one of those in old halogen lamps transformer. or transformer of Fluorescent lamps and many other stuffs. but simple way is purchase from store.
Bring Dead Lead Acid Battery to Live Again
How to Revive Old Lead Acid Batteries
Refilling SLA's (Sealed Lead Acid Battery), Like Refilling a Car Battery
hey guys. i have 12V SLA battery and it wasn't use 1 years. after charging its not save power as it should. the voltage was 3.6V and it dies after 10Sec. i collect some rain water and clean it with cotton filter. refill the 6 cells and charge the battery for 5H. in first hour it takes 0.3 ~ 0.9A and in next hours 2.6Amps. is it normal? what was my mistake? the voltage is 7.78 now and its not die fast. it can provide 7.78V for a LED lamp almost 3hours. what should i do to make it 12V or near 12?
Smartphone Charger Convert Into Wireless Charger
you can use micro SD memory card cases.
You're welcome Alpha_olI'm glad I could helpit was my problem too in 3 month ago. i just bought a new dremel 3000 and a set of wood cutter bit. i turn on my dremel with 30000rpm but wood cutting bits made for 20000rpm and i feel a hard vibrate in my hand and after 3 sec my dremel just died! i was so sad because i love my dremel! after i take it apart i just saw the wire which get cut of from its place.i hope your dremel work for you at least 10 years :))
mokhlesam dadash. che khoob ke irani ha ham be in site e aaaali mian o hastan :D adam ehsase gharibi nemikone :D fada mada ♥♥♥
birds like darkness in their nest and in this type of bird house they see inside of your home from window and they don't feel safe. its better to do not cut the back side of birdhouse and stick suction grips on the back.
sorry for late.parakeets usually like cube nest boxes as you can see in picture.but if you have a big coconut , yes parakeets can use this as nest because its natural and wooden and any type of birds like it.in my country its hard to find a big coconut. i was lucky to find this one.sorry for bad English. and thanks for comment.
sorry for late.if you have a big coconut , yes parakeets can use this as nest.in my country its hard to find a big coconut. i was lucky to find this one.but if you can find big ones easily u can use for any type of bird that can get in it.sorry for bad English. and thanks for comment.
why this ir transmitter not working with any of my smartphones ?iphone 4siphone 6sgalaxy s7galaxy j1when i press a button on remote app like zaza remote or ASmart remote no voltage come from 3.5mm jack. its always 0V. i test it with IR LED and color LED and low voltage bipolar lamps. when i press a button on remote app nothing happen on audio jack. please help me dear friend. thanks so much
it a sine wave in positive side drive the LED that is connected + to left and - to right and after that in negative side of wave the other led getting drive. it the reason that you should use 2 LED. in remote controls is different and the remotes make their own wave and transmit it trough IR Led.
i think you should just use IR receiver instead of transmitter. but what is the use for ir receiver in android phones? can u control the phone whit ir remote controls? or what?
checkout mine :
Laser-Cut Birdhouse with Window
How To Build A Birdhouse
thank you for your nice comment. birds needs us specially in winter.
Finch House (Nest)View Instructable »
Wood Dowel Puzzle
if you add some pic from extracting meat step it will be better.nice idea
3D Printing Class
actually its not free water !! because it come from main water of house!
Where are you from?ایرانی هستی ؟
where you put seeds?the finch will sit on wires. how it should eat seeds? there is no hole or any other way to inside the tube.
How to set the ID for the RF remote control kit
AVR ISP programmer
does butan torch works too? or we should use just propane?thanks
How to Make a Heat Sealer
12V Battery State Of Charge Indicator
simple, cheap, cool, waterproof and gummy diy battery holder
PCB agitator from an old CD ROM
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