Mystery device
in [Design]
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From: D Yuniskis on 28 May 2010 12:59 Hi, Pulled this out of the recycle bin as it "looked interesting" :> Fully populated PCB but no case to put it in context. No useful markings on the silkscreen. 10 LEDs arranged in a semicircle -- green followed by red (e.g., like a meter with a - and + zone). One power indicator. One push button (power on/off) 9V battery powered. Turning it on appears to do a lamp test (though this could just be a noise spike that temporarily drives the "meter" up to MAX). Center of board has a foil pattern similar to what you would find *in* an RFID tag (1.5" concentric squares). I.e., suggests it is an antenna. Now, what might this be *used* for? Thx, --don
From: Spehro Pefhany on 28 May 2010 13:09 On Fri, 28 May 2010 09:59:57 -0700, D Yuniskis <not.going.to.be(a)seen.com> wrote: >Hi, > >Pulled this out of the recycle bin as it "looked >interesting" :> > >Fully populated PCB but no case to put it in context. >No useful markings on the silkscreen. > >10 LEDs arranged in a semicircle -- green followed >by red (e.g., like a meter with a - and + zone). > >One power indicator. > >One push button (power on/off) > >9V battery powered. > >Turning it on appears to do a lamp test (though this >could just be a noise spike that temporarily drives >the "meter" up to MAX). > >Center of board has a foil pattern similar to what you >would find *in* an RFID tag (1.5" concentric squares). >I.e., suggests it is an antenna. > >Now, what might this be *used* for? > >Thx, >--don Microwave oven leakage tester?
From: John Larkin on 28 May 2010 13:29 On Fri, 28 May 2010 09:59:57 -0700, D Yuniskis <not.going.to.be(a)seen.com> wrote: >Hi, > >Pulled this out of the recycle bin as it "looked >interesting" :> > >Fully populated PCB but no case to put it in context. >No useful markings on the silkscreen. > >10 LEDs arranged in a semicircle -- green followed >by red (e.g., like a meter with a - and + zone). > >One power indicator. > >One push button (power on/off) > >9V battery powered. > >Turning it on appears to do a lamp test (though this >could just be a noise spike that temporarily drives >the "meter" up to MAX). > >Center of board has a foil pattern similar to what you >would find *in* an RFID tag (1.5" concentric squares). >I.e., suggests it is an antenna. > >Now, what might this be *used* for? > >Thx, >--don Stud finder maybe. John
From: GregS on 28 May 2010 13:59 In article <htosdu$tki$1(a)speranza.aioe.org>, D Yuniskis <not.going.to.be(a)seen.com> wrote: >Hi, > >Pulled this out of the recycle bin as it "looked >interesting" :> > >Fully populated PCB but no case to put it in context. >No useful markings on the silkscreen. > >10 LEDs arranged in a semicircle -- green followed >by red (e.g., like a meter with a - and + zone). > >One power indicator. > >One push button (power on/off) > >9V battery powered. > >Turning it on appears to do a lamp test (though this >could just be a noise spike that temporarily drives >the "meter" up to MAX). > >Center of board has a foil pattern similar to what you >would find *in* an RFID tag (1.5" concentric squares). >I.e., suggests it is an antenna. > >Now, what might this be *used* for? > Sounds like the thing in my hand. i bought it surplus several years ago. Probably Electronic Goldmine. A magnetic field detector. Ghostbuster. greg
From: GregS on 28 May 2010 15:19
In article <htp08h$cb9$1(a)usenet01.srv.cis.pitt.edu>, zekfrivo(a)zekfrivolous.com (GregS) wrote: >In article <htosdu$tki$1(a)speranza.aioe.org>, D Yuniskis > <not.going.to.be(a)seen.com> wrote: >>Hi, >> >>Pulled this out of the recycle bin as it "looked >>interesting" :> >> >>Fully populated PCB but no case to put it in context. >>No useful markings on the silkscreen. >> >>10 LEDs arranged in a semicircle -- green followed >>by red (e.g., like a meter with a - and + zone). >> >>One power indicator. >> >>One push button (power on/off) >> >>9V battery powered. >> >>Turning it on appears to do a lamp test (though this >>could just be a noise spike that temporarily drives >>the "meter" up to MAX). >> >>Center of board has a foil pattern similar to what you >>would find *in* an RFID tag (1.5" concentric squares). >>I.e., suggests it is an antenna. >> >>Now, what might this be *used* for? >> > > >Sounds like the thing in my hand. > >i bought it surplus several years ago. Probably Electronic Goldmine. >A magnetic field detector. > >Ghostbuster. > That thing used to go haywire near CRT's. Probably one of the main uses at the time to check for fields. Yes it works fine on my Fluke analog/digital scope. greg |