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  • RK Launching new product "Boron" - Rk launching there new product "Boron Fertibor" fertilizer in Bangladesh, the product is marketed by RK Agro products under the brand name of RK "TAZA"

    {denvideo http://www.youtube.com/watch?v=w6Q0-sneUz0}
  • Intel Sciecne Talent Search -
    {denvideo http://www.youtube.com/watch?v=qKyi0M1Qy9M}
    		{denvideo http://www.youtube.com/watch?v=X0KIwvBY9L4}
  • Enviroment Fair 2009 - National Enviroment Fair 2009 held at Osmani Auditorium, Dhaka.
  • Bangladesh Regional Science Fair 2009 -
    {denvideo http://www.youtube.com/watch?v=vQlf6LrQhNM}
    		 {denvideo http://www.youtube.com/watch?v=Zr1f4zvo0Ow}
      

Vu Meter For Power Amplifiers


linux

vu_meter_for_power_amp2.gif (12605 bytes)

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linux

Power Supply 0-15V / 1A


linux

Power_supply_0_15V.gif (4840 bytes)

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linux

Electronic Fuse for Power Supply


linux

Electronic_fuse.gif (3299 bytes)

 Imax (A) R1 (Ω) R2 (Ω) Q1 Q2 Q3
5 100 0.12 2Ν1613 2N3055 BC148
0.5 1000 1 BC107 2N1613 BC148
0.1 4700 4.7 BC107 2N1613 BC148

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linux

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