I was lucky to find fly killer in a shape of tennis racket like the one that you recommended. I took the circuit diagram.
I want to use it for project similar to fly killer. I want to connect it to our electric fence where we keep 4 sheep.
I connected the ground of the base of the transistor to a 555 timer that oscillate at 1 Hz. The current is only 10mA when I don't touch the fence. It is 30mA when there is ark. In normal operation we don't have ark.
If I use 4 Ni-Cad cells I think it will be enough for one day. I want to put also small solar panel to charge the battery.
I need advice please from somebody who knows about solar panel. How big it has to be to charge the battery average 30mA on cloudy day?
One house in our village paid 15000 Euros for 16 square meters of panels on his roof. They told him that on sunny day he will have 2KW and after 5 years the panels will pay for themselves. He had only 100W on sunny day and the company came to look and told him that it's because the panels are dirty with kacki of birds. He cleaned the panels and the output went up to 200W. Now he takes the company to court, his advocate say that he has to clean the panels of birds kacki every week until he is 135 years old until the panels pay for themselves.
I want to use it for project similar to fly killer. I want to connect it to our electric fence where we keep 4 sheep.
I connected the ground of the base of the transistor to a 555 timer that oscillate at 1 Hz. The current is only 10mA when I don't touch the fence. It is 30mA when there is ark. In normal operation we don't have ark.
If I use 4 Ni-Cad cells I think it will be enough for one day. I want to put also small solar panel to charge the battery.
I need advice please from somebody who knows about solar panel. How big it has to be to charge the battery average 30mA on cloudy day?
One house in our village paid 15000 Euros for 16 square meters of panels on his roof. They told him that on sunny day he will have 2KW and after 5 years the panels will pay for themselves. He had only 100W on sunny day and the company came to look and told him that it's because the panels are dirty with kacki of birds. He cleaned the panels and the output went up to 200W. Now he takes the company to court, his advocate say that he has to clean the panels of birds kacki every week until he is 135 years old until the panels pay for themselves.