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This night light provides a warm soft glow after dark and is battery powered, so it can be placed anywhere - bedroom, dark stairway, hallway - or even...
The "Electronic" part of this night light derives from the so-called "Joule Thief" which is the real secret of its performance. The Joule Thief circu...
Variants of the Joule Thief circuit have been described in a number of articles, Instructables, and websites. This author learned the basics of how to...
This is the schematic diagram of the Joule Thief circuit as made for this night light project. It is more or less what has become the "standard" Joul...
The toroidal transformer for this night light was made on a ferrite core 1/2"OD by 1/4"ID by about 3/16" long. This is available from www.sciplus.com ...
With all the parts ready, it is most prudent to first hook up the circuit on a solderless breadboard and make sure it works just the way it should. Wh...
The permanent circuit can be built on a tiny piece of stripboard as shown in this drawing. This is a view from the top with the copper strips shown i...
The Joule Thief is positioned at a height that illuminates the image on the glass to best advantage. The LED that is shown here has a wide viewing an...
Here is another electronic night light made by the author (featuring St. John Bosco). This one does duty on the bottom of the stairway going up to th...
Still another one of our night lights (this one is kept at the top of the loft stairs) has a jumbo white LED mounted near the top cover and angled dow...
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