Re: ELF detector
From: Ed Price (edprice_at_cox.net)
Date: 09/25/04
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Date: Sat, 25 Sep 2004 13:35:20 -0700
"Tim Shoppa" <shoppa@trailing-edge.com> wrote in message
news:bec993c8.0409250915.3babcb6d@posting.google.com...
> gemlover@tampabay.rr.com (Larry) wrote in message
> news:<13667c89.0409242355.764c64f2@posting.google.com>...
>> Hello,
>>
>> I was hoping someone could send me in the right direction to find
>> information on a low frequency detector.
>> Either a low cost purchased unit, or the schematics to build one.
>> I am trying to detect in the 0- 30Hz range.
>> I appreciate any info, Larry
>
> A 100W light bulb does a good job for me. Its sensitivity extends
> all the way to 60Hz, in fact.
>
> Tim.
Older hams know that 100 Watt light bulbs have a frequency response to at
least 50 MHz! But they must roll off badly above 1 GHz, because they never
show the power I'm really putting out!
Ed
wb6wsn
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