7 thoughts to Survival Gear You Should Have How Can I Buy At 12:42

  1. why it doesnt work for me? . my LEDs are always on?
    i used just a battery, without main supply and transformator

  2. Thanks a lot. we have completed our analog electronic project but we use battery instead of 9V step down transformer
    and Diode bridge – 1A and electrolytic capacitor – 470uF is also not required.Our circuit is working perfectly.once again thanks a lot.