From: John De Armond Newsgroups: misc.rural Subject: Re: Type of Rat Date: Thu, 30 Nov 2006 21:19:15 -0500 Message-ID: <g44vm25qkvvjglqj5qp6ft14a346lpilp2@4ax.com> On Wed, 29 Nov 2006 20:17:00 -0600, maradcliff@UNLISTED.com wrote: >>So long as no pet animals can enter this room, >>you can safely leave a live wire to electrocute the rat. > >Hey, I like that idea.... >Maybe a small piece of tin mounted on a block of wood and hooked to >the hot side of the outlet. Get a couple legs on that tin and the >others on the cement floor and zap.... > >Im going to try that.... >My pets dont go in there unless I put them in. Obviously they will be >kept out while this is turned on. BTDT, didn't work. The suckers can smell the charge or something. I etched a grid on a large piece of printed circuit board and connected alternating strips to a 5kv, 1 amp plate transformer. I put some bait right in the center. Turn the juice on, the rat ignored it. Turn the juice off, he cleaned out the bait. In the end I got him. I rigged up a proximity detector to the bait so the juice would not turn on until he was on the grid and touching the bait. BLAMO! Blew the sucker's feet off! John From: John De Armond Newsgroups: misc.rural Subject: Re: Type of Rat Date: Fri, 01 Dec 2006 12:09:53 -0500 Message-ID: <h9o0n2d19qdv7asc7rnome4aduftcbab4m@4ax.com> On Thu, 30 Nov 2006 20:47:44 -0600, unsettled <unsettled@nonsense.com> wrote: >Neon John wrote: >> In the end I got him. I rigged up a proximity detector to the bait so >> the juice would not turn on until he was on the grid and touching the >> bait. BLAMO! Blew the sucker's feet off! > >Interesting. I have a "rat zapper" which is the charged plates >gambit in a plastic tunnel and it gets them all the time. Is that one of those commercially available ones where the varmint crawls in a tunnel and gets electrocuted? If it's like mine then there is an optical sensor that turns on the juice only after the booger is in on the grid. A variation of my design, basically. > >Maybe the problem you folks have is that you're using AC. I've >had discussions with women who can actually hear the 60hz in >an ordinary incandescent light bulb. Oh that's easy to hear if you have good high frequency hearing. I can easily hear the harmonics of a straight unsupported filament. > >Maybe the critters can home in on some sort of buzz not obvious >to us. I'll bet you can get it done quick and easy if you use >well filtered DC. Don't know. I suspect that they can smell the ozone or maybe even detect the electric field. There's probably some literature on that out there, considering how much rats have been studied. John |