ATHENS 
MY WEATHER STATION, BY DIMITRIS
Location: Peristeri of Athens, Greece
Position: 38 00.58' NORTH / 23 42.04' EAST
Elevation: 63 meters
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Portable Lightning Detector
I make a portable lightning detector,it work when it receiver a RF signal from lightning strikes,at low frequency at 300 KHZ, it make a noise (scratch) to speaker ,it show a flash led ,and show a meter how continuity is the lightnings activity.The original consept and design is from www.techlib.com .

Here it is the electronic material, plastic box ,aerial antenna,potentiometer, meter,speaker and other electronic components Here i have open holes to plastic box and i have place some electronics parts over there. And here the same from the other side.
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Here i make a test at one choke coil with a LC meter it is 10 mH,LC meter it show 10,58 mH. Here it is ready the components over to PCB ,with soldering iron. . Another one photo from the other side.
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He i make the conection with pcb and components over to plastic box. Here it is ready . Another one photo,show the jack for external ac/dc 3 volt power
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Click here for you see a test video,how work it. I make a test if all work good ,i touch with my finger the antenna,before i use it at real lighting strikes (Thunderstorm day) Click here for you see video with thunderstorm near to my area.
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Added a counter meter for measurement the lightning strikes.
Here I added a counter meter strikes,from a modification at step meter counter.And i change the meter circuit for more sensitivity.The idea it is from Chris from Nederland.

Here it is a electronic design . Here it is A simple step meter before modification Here,you see the reed switch inside the red circle,and the magnet at side near to reed switch at left side from blue circle.
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Here i put out the pcb,and with soldering iron put out the reed switch and the magnet Here with soldering iron,i stick a twince cable for the output. Here i put the correct position the pcb again,and the small screws.
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Here i open a hole at plastic for pass the cable out side Here is the new electronic design for A meter,for more sensitivity.added one resistor 3,3 K,and two electrolytic capacitors 100 F-220 F. Here is ready the PCB components
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Here it ready the electronic design,i use reed relay 5 volt ,it work great and with 3 volt where i use,the type it is D1A051D00. And it is ready.
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