I thought I had seen almost everything electronic, but a Harbor
Freight ad in this weeks junk advertising flyer had a super coupon for
"7.99 electronic fly swatter on sale with the coupon for only $2.49,
requires two D batteries (old separately)".
It looks like an oversize tennis or badminton racquet. Not a clue if
the batteries are hooked up to a grid to electrocute any fly that
crosses paths with the swatter, or if you get a shock if you miss the
fly, or whatever.
Does anyone know what this thing actually is supposed to do
Ia have a few of them and they work great, well the one with fully
expensed wires does, the other one has grids of plastic to make it Kid
safe and it's harder to get the mosquitos in, it even kills bees and
horse flies , one wire must be positive and one neutral , I used to
walk my dog where there were deer flies and had to stop in summer till
I got the racket, mine were 15$ , if the wires are fully exposed get a
few of them.
I have one. Works great...like a bug zapper.
The only thing is, you can't swing it against things like you can with
a flexible fly swatter since it's hard plastic. You have to hit bugs
on the fly by startling them to leave wherever they're sitting and fly
into the grid. Once that happens, the sparks and crackling begin.
Just in case you're wondering, it hurts like heck if you touch the
grid when it's energized. DAMHIKT
On 6/7/2012 8:15 PM, DerbyDad03 wrote:
There used to be another kind that worked sort of the same way. It was a
fly catcher on a stick sort of thing. They worked really well. I've
always wondered what happened to those. I haven't seen them since the '80s.
I didn't throw mine, but my arm was sore for a while. By that I mean
several minutes (IIRC). Certainly long enough that I won't test it
Of course, it was nothing like the time during USCG Electronics School
that I got hooked onto a 400VDC power supply, hand to hand, across the
chest, until someone pulled the plug.
I came back to class the next day but 2 other guys who had witnessed
the event quit Electronics School and decide on a different career
On Thu, 7 Jun 2012 16:40:27 -0700 (PDT), "hr(bob) email@example.com"
Kill bugs! with a loud SNAP and a big spark! Where have you been,
man. They are more fun than the twitchin' tool.
That's a high price, though. I buy a couple every time I see them
for $4 at the 'dollar' stores or HF.
Warning-- If it doesn't seem like it is working, *DON'T* touch the
damn thing. That jolt is stronger than the buzz you get from a 110
Quite easily. The three volts is fed to an oscillator. The output of the
oscillator is fed to a 10,000:1 transformer. You end up with 30,000 volts
(give or take) across the transformer's secondary winding.
There's really no practical limit to the voltage output than can be had from
a 3 volt input.
I have not idea what the actual voltage in a fly swatter might be. I picked
10,000:1 as an example of stepping up a DC voltage.
I've seen the reverse, too. In making a home-made spot welder, you might use
a 1:250 ratio transformer to convert 120v down to 0.5 volts at 200 amps.
Thanks-- I'll tear one apart one of these days. In the meantime, my
arm says 30,000V is about right.<g>
[I just wiki-pedia'd it. *They* say 1K-2.5K --- but I'm stickin'
No need for the transformer, even. A switch (oscillator) into an inductor
will create a "flyback" voltage of pretty much anything you want. It's
generally easier to combine the two, though; A "flyback" switch/inductor with
a secondary step-up transformer. It's also known as an "ignition coil". ;-)
Something in the dim recess of my memory, AC is much more dangerous, which
is why Thomas Edison wanted to make only DC power plants. But, DC doesn't
travel down the wire very far. And, so AC won out for power transmission,
cause it goes farther. Parts of NYC used to have a power plant every couple
blocks, with DC power being supplied to the people.
Christopher A. Young
Learn more about Jesus
DC is worse than AC, with AC there is a momentary time when the
voltage/current goes thru zero and muscles can relax and let
go(sometimes), With DC there is no such chance.
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