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bestBT speakers 2017

The bluetooth speaker is a very popular  item among young generation

 and there are 1 million varieties. It is  device with inbuilt

  • Amplifier 
  • Batterycharger and battery 
  • wireless module 
  • MP3 USB SDcard module 
  •  color LED driver
  • Power control circuit



The components that are AMPLIFIER ,  SPEAKER DRIVER , CASE  etc really make the sound very good or worse . 

- Look for reputed but not too expensive brands 
- Look for a real decent sized one , although small will look cute but sound will not be great for sure 
 an attractive but bad sounding speaker is as below
-NEVER  buy seeing PMPO ! its is a fake rating even philips and sony use that
-if secifications available see wattage , a 4-5watt speaker is recommended  


We have listened to speakers that were priced in 1200-1700Rs and found the following very well made with good audio quality .


ZOOK series : ELITE is one nice speaker  1300Rs


Portronics : The POSH is one good speaker .

  • POSH is also equipped with AUX-IN which lets you connect your device(s) through a wire. You may use AUX when the phone is running low on battery and you do not want to use Bluetooth in an attempt to save its power.
  • What’s also unique about POSH is the perfect blend of cool looks, fine leatherette finish, robust design, premium sound quality,



BOAT speaker : Nicer designs in compact segment , bass is well pronounced





JBL GO

The marsee series , via aliexpress

Link: https://www.aliexpress.com/item/Bluetooth-Speakers-MARSEE-ZeroX-Outdoor-Portable-Bluetooth-Speaker-Wireless-Waterproof-Mini-Speaker-Super-Bass-With-Mic/32808682839.html



for 900Rs it packs a punch , ruggedness and a very strong 5wATTS DRIVER


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MakeINAxom - a revolution that will light up assam (600Rs Inverters !)

#MakeINAxom
#SOHOJELECTRONICS
#SELABS

MakeINAxom is a dream that will shine Assam and NE Region .....
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SELABS কি  , কি কৰিব বিচাৰিছে ?     SELABS organization বনাইছিলো অকলেই , ইয়াৰ আৰম্ভনিত ২-৩বছৰে ফেচবুক গ্ৰুপ   "SOHOJ ELECTRONICS TALK AXOM"  ত  ইলেক্ট্ৰনিক্সক লৈ কেনেকে প্ৰদাক্ত বনাব সেইয়া লৈ আহিছিলোঁ
--- Eng::
   The "SOHOJ ELECTRONICS TALK AXOM" face book group has been pioneer in bringing electronics and DIY to all in a simple way .It has acquired 9000members in 2 years that include people from all spares of job  / academics .  ---- SELABS কেনেদৰে বিপ্লব কৰিব বূলি ভাৱিব পাৰি ? SELABS প্ৰথমে বনাইছে সহজ-ইনভাৰ্তাৰ  ৩ ৰুমত ১০০% উজ্জল লাঈত দিব দামী ইন্ভাৰ্তাৰৰ দৰে ।  কেবল ফেন আদি নচলে বেচিক মদেলত ,কাৰ দাম আৰু বেতেৰী যি দৰকাৰ তাৰ খৰচ কম ৰাখিবলে । 
The key points of MakeinAxom Industry 
Rs 600/-ইন্ভাৰ্তাৰ কৰি সকলোকে দিল্লীত বনোৱা বেয়া চাৰ্কিতৰ ইমাৰজেনচী আদিৰ পৰা আতৰাই অসমতে বনোৱা , অসমীয়াই ডিজাইন কৰা প্ৰদাক্ত কিবা বেয়া …

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 ! 

Home for everyone ! DIY enclosure for circuits

We at SELABs yet at proto stage , some protos have  been finalized but leaving the circuit naked and casing are two things .
 The casing is 30% extra task .
 Remember projects without box gets damaged or lost .


 You are an Engineer not a craftman so dont go buying all tools , dremels needed but cost Rs 4000 to 8000. For starters they are not a must .

 To make the DIY enclosure for circuits you will need


Fasteners : 3 sizes 3mm//4mm length screw and nut pars : Buy a lot Drill and file and hecksaw : these are tools of trade . drill are there in tolexo dot com for 600Rs Round and flat file needed too .  A cheapo soldering to melt away plastic, A nail file to heat and cut plastic  Acrylic cutters : in case making from acrylic , I recommend a acrylic cutter 100RS or so in amazon    Needed knobs and sockets to be bought in aliexpress , it is the  better way    dc sockets : 20Nos    plugs : 20    audio sockets and jack 20pair    Knobs 50   3pdt _ for guitar padels 10Nox or 20 in Pack 
Tips t…