# Shake it, baby

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#### David Harmon

Jan 1, 1970
0
OK, I got a shakelight flashlight for Christmas. Now the shaking
idea is better than no light in an emergency, but obviously a loser
for everyday use. Who wants to design the charger with an external
coil and a small oscillator to drive it? Must not overdo it and
degauss the magnet.

A

#### Allen Bong

Jan 1, 1970
0
OK, I got a shakelight flashlight for Christmas. Now the shaking
idea is better than no light in an emergency, but obviously a loser
for everyday use.

----
I have also bought one from a travelling salesman from China. It costs
about $1.80 (RM7.00) and when I take a magnifying glass and examine the inside, I found that the coil ended up no where. The small PCB just housed a small resistor and a slide switch. There were also 2 3V CR30XX batteries. From what I can see, the coil wound is less than a layer as I can still see the plastic core. There is no transistor or diode or .1F capacitor as described in other posts in s.e.b. So I guess once the battery is out I'll need to replace them with new ones. Or else I can shake till my arm breaks and they won't be any light. Allen J #### John Popelish Jan 1, 1970 0 Allen said: OK, I got a shakelight flashlight for Christmas. Now the shaking idea is better than no light in an emergency, but obviously a loser for everyday use. ---- I have also bought one from a travelling salesman from China. It costs about$1.80 (RM7.00) and when I take a magnifying glass and examine the
inside, I found that the coil ended up no where. The small PCB just
housed a small resistor and a slide switch. There were also 2 3V
CR30XX batteries. From what I can see, the coil wound is less than a
layer as I can still see the plastic core.

There is no transistor or diode or .1F capacitor as described in other
posts in s.e.b. So I guess once the battery is out I'll need to
replace them with new ones. Or else I can shake till my arm breaks and
they won't be any light.

That is an amazing low price for a flashlight and a futility generator.

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