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Much simpler than the zapping fly traps, this type uses a UVA lamp to attract flies to a replaceable sticky board. When they land on it they get stuck.
The most complicated part of this is the electronic ballast for the tube, which is the same sort of circuitry you'd find inside a compact fluorescent lamp.
Interesting startup circuit. Very minimalist.
This unit does have a weird design flaw. It has to be plugged into an extension or adaptor, since the case fouls the switch on most UK sockets, preventing it from being plugged in fully.
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13 thoughts on “Inside a sticky glue board fly trap with ballast schematic”
  1. Avataaar/Circle Created with python_avatars Rainbow Roger says:

    congrats on 900k

  2. Avataaar/Circle Created with python_avatars Cazzavillan says:

    Can someone tell me why flies like landing on my sound system when I run it outdoors? Especially the bass bins 😂

  3. Avataaar/Circle Created with python_avatars Phonotical says:

    You couldn't just use any fluorescent ballast? I have a 40w version that'll run just about anything I poke onto it, but why they didn't use les for this I don't know, making a product to throw out some tubes nobody would use any more 👀

  4. Avataaar/Circle Created with python_avatars Tophie says:

    I think I have the wrong video. I'm interested in a trap that catches sticky flies.

  5. Avataaar/Circle Created with python_avatars Freddy J says:

    "(…)with a metal screwdriver, that's a wise move." xDDD

  6. Avataaar/Circle Created with python_avatars maven says:

    @bigclivedotcom can you advise some good quality Electronics Cheat Sheet Charts and where they can be purchased. Thanks in-advance.

  7. Avataaar/Circle Created with python_avatars Kim Sleep says:

    IU have noticed on parts retailers, like Ali Express a LOT of sophisticated bobbins and coils to create high voltages where in the past huge transformers have been used.

  8. Avataaar/Circle Created with python_avatars Kim Sleep says:

    Egads!…Fluorescents!!…in Canada , there is a serious attempt to get rid of them off the face of the earth!

  9. Avataaar/Circle Created with python_avatars Kim Sleep says:

    I used to use glue strips in fly traps, but then I found a bunch of Trump Supporters stuck to it….Snicker!

  10. Avataaar/Circle Created with python_avatars iot_galaxy says:

    Hi! I've got a beautiful board that I'd like you to have a look at and possibly reverse engineer. It's a module from one of the "for hire in town centre" scooters. Do you have a po box i can sent it too? Cheers

  11. Avataaar/Circle Created with python_avatars Woodythehobo says:

    seem like a better design than the zappers, safer perhaps. interesting circuit design!!

  12. Avataaar/Circle Created with python_avatars Gavin Davies says:

    There is also the sugar coated sticky fly traps, that work quite well. As the name suggests its just tape you pull out with a sugar coating and the flys are attracted to it and get well stuck. When full rip off tape and bin. Then pull out some more tap from holder. But probably a bit boring from a electronics point of view.

  13. Avataaar/Circle Created with python_avatars RomanoProductions says:

    Dear BigClive, I wonder if you can add 2 wires from the ballast and add the electric shock in addition to the sticky tape.

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