Electronics > Projects, Designs, and Technical Stuff

Bug zapper "tennis racket"

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james_s:

--- Quote from: VK3DRB on July 22, 2020, 10:33:05 pm ---Executing flies and mozzies en-masse has unexpected ramifications because they are all part of the food chain. It seems anything humans interfere with in nature, there are side effects... https://en.wikipedia.org/wiki/Four_Pests_Campaign Mind you, there is nothing worse than flies and mozzies at a barbie.

--- End quote ---

I don't go outside just to kill insects, but I'm entitled to use the outdoors now and then too and there is no shortage of bugs. I seriously doubt that zapping a few hundred of them that are ruining an outdoor gathering is going to do irreparable harm to the ecosystem. They're welcome to go harass some other creatures instead of us.

Mr. Scram:

--- Quote from: james_s on July 23, 2020, 04:28:18 am ---I don't go outside just to kill insects, but I'm entitled to use the outdoors now and then too and there is no shortage of bugs. I seriously doubt that zapping a few hundred of them that are ruining an outdoor gathering is going to do irreparable harm to the ecosystem. They're welcome to go harass some other creatures instead of us.

--- End quote ---
I bet you didn't even ask them.

floobydust:
I'd have no problems with mosquitos going extinct. No love for bugs here and a research experiment confirmed mosquitos are not a vector for corona viruses.

The bug zapper HV power supply has a small 3V version and a beefier 3.7V Li version, around 1,400-2,000VDC.
I see them commonly taken out and used for electric mousetraps. There's lots of youtube videos on that but they mask some parts and I suspect they beef up the output capacitor from stock 0.022uF? 2kV to much larger. Some videos show massive electrolytic can-type caps  (but obviously hollowed out) and a 12V battery which just makes no sense.

edit: reposted schematic as it became cross-linked to another picture

MarkMLl:

--- Quote from: VK3DRB on July 22, 2020, 10:33:05 pm ---Executing flies and mozzies en-masse has unexpected ramifications because they are all part of the food chain.

--- End quote ---

As are humans, and we have a right to defend ourselves.

MarkMLl

MarkMLl:

--- Quote from: floobydust on July 23, 2020, 05:30:02 am ---I see them commonly taken out and used for electric mousetraps. There's lots of youtube videos on that but they mask some parts and I suspect they beef up the output capacitor from stock 0.022uF? 2kV to much larger. Some videos show massive electrolytic can-type caps  (but obviously hollowed out) and a 12V battery which just makes no sense.

--- End quote ---

At least some of those videos are using cattle prods as a voltage source, and the degree of coyness makes me suspect that things aren't quite as they appear. After all, the idea is not to tell people how to eliminate vermin (I'm pretty damn sure that in one case the rats get recycled for multiple performances) but to make money from advertising.

MarkMLl

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