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Saturday, 25 January 2014

Joule Thief - Jeanna's Light

Power a CFL bulb using 1.5v !


Today I'll show - How to light a CFL bulb using two 1.5v AA batteries !
Its Easy !


Materials Required
  • Two 1.5 volt AA batteries
  • Battery holder (for your convenience)
  • Switch  (for your convenience)
  • Power Transistor like 2N3055
  • Variable Transistor/Potentiometer of 100 ohms
  • Ferrite Core donut shaped
  • Wires - 30 gauge magnet wire, 18 gauge wire (with thick plastic insulation,Colors -Black and Blue) 
  • A gutted CFL bulb 
a 

b

 

Assembly Instructions

Circuit diagram


1. First take ferrite core (doughnut shaped) and wind it with 256 turns of 30 gauge magnet wire and stop winding when there is a gap of 2mm (c). Then solder both the ends with a thicker insulated wire (red colored).

(a)
(b)
(c)

Soldering it with thicker insulated wire




2.
Wind 10 turns of a plastic insulated wire 18 gauge on top of the first winding.


3.Wind 5 turns of a plastic insulated wire 18 gauge on top of the second winding.

4.Now connect the Blue wire's one end with the resistor and another end with the Base - B of the transistor.

5.Connect Black wire with the Collector - C of the Transistor (and the other end of it with the switch if you want)
6.Next Connect the negative point of the battery with the transistor's Emitter - E and the positive with the switch.



7.Connect green outlined wires as in the image below.
8.Finally Connect the gutted  CFL's both the end with  the red wire(which has 256 turns).
Test it Whether you have done all the things correctly and light the CFL with 1.5v Batteries !!!
You can close it  in a box or a can, It depends on you.
Here is a video :



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Friday, 24 January 2014

Candle Heater

Cheap and Effective Candle Heater 

Today I'll show - How to build a Candle powered Flower Pot Heater Easily !
IF YOU WANT TO HEAT A ROOM WITH JUST ONE CANDLE AND SAVE MONEY. YOU NEED TO CREATE THERMAL MASS AND THEN RADIATE IT WITH TERRACOTTA POTS. IT'S MORE SIMPLE THAN YOU COULD EVER IMAGINE.

Materials Required
  • One 4″ terracotta (not glazed) pot
  • One 2″ terracotta (not glazed) pot
  • One 1 1/2″ terracotta (not glazed) pot
  • Two 1 1/2″ x 1/4″ washers
  • Three 1 1/4″ x 1/4″ washers
  • Three 1″ x 1/4″ washers
  • Eight 3/4″ x 1/4″ washers
  • Seven 1/4″ nuts
  • One 3″ x 1/4″ bolt

Assembly Instructions

I think that the easiest way for you to learn how to put all of these materials together is to follow these images.



How it Works 

    The basic purpose of this heater is to capture the heat given from a candle ember and to concentrate it into a steel and ceramic radiator assembly. After some time, the ceramic surface will act as a thermal mass and begin to radiate the captured thermal energy into your room or office.
    Heat rising from a burning candle (or electric lamp) is first trapped in the Steel Inner Core and surrounding Ceramic (Terracotta) Inner Module.
    The Inner Cores profit very hot and radiate heat to the Ceramic Middle Core.
    This entire inner region gets VERY VERY HOT! Heat synergistically builds up and 'boils out' of the Terracotta Inner Core into the Ceramic Middle Core. The Middle Core heats up and begins to Radiate Heat. Heated air 'boils out' into the Terracotta Outer Core.
    The Large Surface Area of the Outer Core begins receiving Heat. The inner wall surfaces become very HOT! Heat travels through the wall to the Outer Surface.
    The Outer Surface gets VERY WARM to HOT and gently begins to Radiate Heat into your house or office.
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