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Posted by DoN. Nichols on April 13, 2008, 6:36 pm
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>>> wrote:
[ ... ]
>>>> I've got a couple of related ones. They have the HV friction
>>>>charger built-in. One holds a charge nicely, the other leaks down
>>>>fairly quickly.
>>
>> [ ... ]
>>
>>> Friction Charger? Ive never seen one of those
>>
>> It is a cylinder turned by a knob which turns inside a
>> dissimilar material to generate a high voltage static charge (very low
>> current however). It is sort of like rubbing a glass rod with silk to
>> generate high voltage sparks.
>>
>> How do the separate chargers for the ones shown in the puzzle
>> work?
[ ... ]
> The ones i have taken apart and studied consist of a transistor oscillator
> driving a transformer to generate the high voltage which is then rectified
> and fed into a filter capacitor. As i recall they required a single D cell
> to work. The problem with the battery operated units is that most of them
> came with batteries that eventually leaked. When the units were tested
> upon reciept the people in charge for the most part left the batteries
> installed
> eventually corroding the guts of the charger making them useless in the
> event
> they were ever needed.
Ouch! They wanted to be "ready". :-)
It is certainly different from mine, as there was no separate
battery so the power had to come from physical energy put into the unit.
Luckly, it did not take much energy. :-)
Enjoy,
DoN.
--
(too) near Washington D.C. | http://www.d-and-d.com/dnichols/DoN.html
--- Black Holes are where God is dividing by zero ---
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