Tip & How-To about Miscellaneous
HANDY-DANDY INCANDESCENT XMAS MINI-LIGHT TESTER
Have you ever tried to find a bad bulb/socket in a long series string of 50 or more bulbs??
This simple tester (Pic 1) uses a 9 volt battery to test your series lights 3, 4, 5, 6 or 7 at a time (since bulbs are rated 2.5 or 3.5 volts, more than 7 or 8 bulbs is very dim). Radio Shack sells a 9v battery snap connector for $2.99 (Catalog #: 2700325). Using 2 short pieces of stranded #14 wire connect (solder) one to each lead of the snap connector.Then strip about ½ inch of insulation off the end of each stranded wire and fold the bare wires back on its insulation. (Pic 2) These 2 stranded wires can now be easily inserted into any socket with a good snug contact.
Be careful that the two tester wires don't touch and short out the battery.
**** WARNING!! UNPLUG LIGHTS WHILE TESTING!! WARNING!! ****
To test, start at one end of the string, pull out a bulb and insert one stranded end of the tester.Then move down the string and remove the 4th, 5th or 6th light, and insert the other stranded end. All bulbs between the two test wires should light, if not, one of those lights or socket is bad.To narrow down to an individual light, simply move the tester back one or two lights at a time.Then keep moving the tester up/down the string 4, 5 or 6 at a time until all lights/sockets have been tested.
(Testing the FIRST and LAST bulbs/sockets in the string) To test the FIRST bulb touch the tester wire to one or the other male a/c plug prongs. Testing the LAST bulb will require inserting a small wire into the female a/c end and touching it with the tester wire.
Finally, you need to overlap each group of lights so as to also test the bulbs that were removed to insert the tester wires.
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