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Atmospherics Monitor

4/25/2011 09:51 PM EDT
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Dalebopp
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re: Atmospherics Monitor
Dalebopp   4/2/2012 3:44:10 AM
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The only problem with the rods from eBay is you will need to buy a whole hand full of them, at least you don't need to worry about breaking one! In the photo there are two phone jacks and if you look close one is labeled "32 ohm headphone" the other is labeled "record". I think the headphones would sound better than the piezo sounder and if they are not attached to the housing there should not be as much induction issues.... I hope! Have you got your radio working yet? Dale

Max The Magnificent
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re: Atmospherics Monitor
Max The Magnificent   4/1/2012 7:31:56 PM
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Don;t worry -- I found them -- Max

Max The Magnificent
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re: Atmospherics Monitor
Max The Magnificent   4/1/2012 7:26:32 PM
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I think this is the "Recorder Output" shown on the schematic -- do you have the URL for eBay for the ferrite rods?

Dalebopp
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re: Atmospherics Monitor
Dalebopp   4/1/2012 7:16:53 PM
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I found the 10 x 200 mm ferrite rods on eBay as well as the British transistors (BC109c). I noticed on the photo of the completed device that there is an output for 32 ohm headphones despite the article not showing this on the schematic. would anyone know how that would be connected and if that would require a separate amp to drive that?

Max The Magnificent
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re: Atmospherics Monitor
Max The Magnificent   5/2/2011 9:37:47 PM
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Do you have any pictures you'd like to share with us? I could post them in a follow-up blog -- Max

Max The Magnificent
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re: Atmospherics Monitor
Max The Magnificent   5/2/2011 9:25:44 PM
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Don't talk to me about communicating with storms -- I'm based in Huntsville Alabama (I moved here from the UK for the night life ... that's a little Alabama joke :-) We are still without power following the storms last week (I'm typing this from a library in a town about 15 miles away from my house -- this is the first time I've had access to the Internet since last Wednesday... More later -- Max

DrFPGA
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re: Atmospherics Monitor
DrFPGA   4/28/2011 4:12:02 PM
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I think a good modification would be to add a transmitter so you can send lightning up into the atmosphere. That way you can play a duet...

EREBUS0
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re: Atmospherics Monitor
EREBUS0   4/27/2011 7:26:27 PM
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You can also use an AM Radio by selecting 530 Khz area and listen to the atmosphere. I use the radio as a lightning indicator as I set up to photograph lightning. I may try to build this one to see how they compare. Thanks DAB

Max The Magnificent
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re: Atmospherics Monitor
Max The Magnificent   4/25/2011 10:24:37 PM
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The hardest part to find was the ferrite rod. When I was a young lad, it was easy to lay your hands on an old AM radio, which would have had one of these, but now I wouldn't want to take an old radio to bits because it's almost an antique. I tried looking to buy a new ferrite rod on the internet, but the specifications were totally baffling. I lucked out. I'm a member of the "How Things Work" group on Yahoo. I posted a message there and one of the guys had an old rod that he sent me in a cigar case (whenever an old radio stopped working he broke it down into its constituent parts for use as spares). I can't wait to hear what this sounds like...

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