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Sim Power ,SOLAR Power bank পকেততেই যাদু

মবাইলৰ বেতেৰিত ১০০০মিলি এম্প পাৱাৰ থাকে ! কিবাকে বাহিৰত চাৰজ কৰিলে ৰবাটেই হওঁক বা নানা চাৰকিতৰ পাৱাৰ দিব পাৰি 

চাৰকিত হৈvoltage protected chargerছে চাৰ্কিত

You can use USB 5v  charger , but there is danger of exlosion, as the output of these devices is not tightly regulated to 5v. If you carefully measure and observe the output, you can see it going to 6v or more. So, I think you could use a zener-transistor circuit like this for your purpose.Adapting to 5v solar panel is 

super easy . Just use the  panel in place of the Adapter USB wires ! 
This is too low cot circuit and the usability  is huge 

In case you are trip to village where no power , make a tincan  box fitt the solar and circuit , youhave powerbank on the go !  
#makeinAssam #diy #gaming #electronics


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you said Joule Thief?

you said Joule Thief? you said Joule Thief? 

It’s a little wisp of a circuit that allows you to drive aPOWER  LED from a low voltage. Normally, if you want to light up a blue or white LED you need to provide it with 3 – 3.5 V, like from a 3 V lithium coin cell.

But the magic of JT is  a 1.5 V battery like a AA cell simply will work. 
Easy make  Joule Thief,  works like a charm. Not only does it work with a brand new battery, but it works until the battery is nearly dead– down to 0.3 V. 

That’s well below the point where your other toys will tell you the battery is dead, so it can steal every last joule of energy from the battery (hence the name).

how about a cellphone charger , yes it is doable , we are here to give you  a usable tested diagram .

get  the ring toroid from a OLD smps of pc ! 

BITCOIN কিনি ধনী হওঁক ৩০দিনত

BITCOIN electronic 'CRYPTO'currencyসেই টকা পইচাৰ মুদ্ৰাৰ সলনি বিতকইন আহিছে .... ইয়াৰ বাবে কোনো বেংক

নাই কোনো দেশৰ চৰকাৰ কন্ত্ৰল নাই সেইবাবে ইয়াক পঠাই দিওতে  টেক্চ হিচাবত কনমানো কাত 
নাজায় ।

Why know about bitcoin ?
The digital money trade is steadily heading towards immersion in the North American and European markets. One of the significant drivers of the market has been opportunity from keeping money wallet from hidden taxes and easy to open and keep up a financial balance that is fast raising . The immature managing an account framework in Asia and African market, conversely, fundamentally higher development chances to digital money exchanging stages. While a considerable measure of digital money trade organizations done recent quarter on more immersed Western market, the push to promote bitcoins in Asia and Africa obviously after that wannacry event .
১লাখ টকা বিতকইন এবছৰ আগৰ এতিয়া ৪লাখ হৈছে

recent reports AUG -OCT : 

1bitcoin =1.81Lakh rupees (1Aug) 

370360.69 Indian Rupee(TODAY …