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 Post subject: Stoddart nm-12t what's this worth
PostPosted: Oct Wed 11, 2017 6:12 pm 
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Joined: Oct Wed 11, 2017 6:02 pm
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So I picked up this peice of equipment as part of a lot and have no use for it. I thought I would list it on eBay but have no idea what the value is. It powers on and the meter moves but I do not have an antenna to properly test it. Any ideas or references on value would be great.

Thanks will KK6WGP


Last edited by KK6WGP on Oct Thu 12, 2017 9:15 pm, edited 1 time in total.

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 Post subject: Re: Stoddart nm-12t what's this worth
PostPosted: Oct Thu 12, 2017 9:08 pm 
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Joined: Oct Wed 11, 2017 6:02 pm
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Here is a photo https://photos.app.goo.gl/GfSJbHKGqAP0cgDh1


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 Post subject: Re: Stoddart nm-12t what's this worth
PostPosted: Oct Fri 13, 2017 5:55 am 
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Joined: Jul Thu 29, 2010 5:35 am
Posts: 796
Location: Simonton, Texas
It is a VLF field intensity meter and covers 10kHz to 168kHz. I would put it on ebay with a reserve of

abut $100.00 and see what happens. I collect the later Stoddart meters and I have never seen a

NM-12T come up on ebay.

Some info here:

http://online.sfsu.edu/hl/src.html

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Knowledge is useless unless you can share it. KA5OBI


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 Post subject: Re: Stoddart nm-12t what's this worth
PostPosted: Oct Fri 13, 2017 6:00 pm 
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Joined: Oct Wed 11, 2017 6:02 pm
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Thank you for the response. That is about I was thinking as a starting point, I just wasn't sure.


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 Post subject: Re: Stoddart nm-12t what's this worth
PostPosted: Oct Sat 14, 2017 3:03 am 
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Joined: Nov Fri 04, 2011 3:12 am
Posts: 833
Location: New York
When you put it up for sale, include "LowFER" and "Ham Radio" in the title. Stands for something like "Low Frequency Experimenters". There is a ham band down way way low, if I recall it is like 160khz to 190khz. This unit may be something that can be tweaked a little higher and could cover a larger portion of the band. It seems to be right on the edge as is. I could see a ham operator adopting this as antennas for such low frequencies are a real issue. Significant power restriction, antenna length is also restricted and so on. Having a test unit built for a related band should get some interest.

Good luck,
John S.


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 Post subject: Re: Stoddart nm-12t what's this worth
PostPosted: Oct Sat 14, 2017 5:31 am 
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Joined: Jan Thu 01, 1970 1:00 am
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Location: Making For Arcady
I have the almost identical NM-12AT, which ranges up to 250KC. These are excellent VLF receivers, and portable though very heavy. Needless to say, the actual field intensity readings will not be valid unless the receiver is used with the loops or electric probes for which it was calibrated.

A Fairchild ALP-10 VLF loop aerial will work well with the NM-12T. It has a 50-ohm output from a BNC connector. I’ve also used this loop with a Telefunken ELK-639 long wave and short wave receiver, and with the loop sitting on the radio, I often receive the long wave broadcast stations, with Morocco and Algeria being the most reliable.

There is a matching NM-25T that covers 150KC to 32MC.

By the way, the “T” refers to the fact that these are transistorised models.


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 Post subject: Re: Stoddart nm-12t what's this worth
PostPosted: Oct Tue 17, 2017 3:04 am 
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Location: Somers, CT
Sorry, no links to auctions are allowed. Please do not post links to your auctions.

Pete

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 Post subject: Re: Stoddart nm-12t what's this worth
PostPosted: Oct Tue 17, 2017 4:41 am 
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Joined: Oct Wed 11, 2017 6:02 pm
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Sorry about that ill keep that in mind for the future


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 Post subject: Re: Stoddart nm-12t what's this worth
PostPosted: Oct Tue 17, 2017 5:25 pm 
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Joined: Jul Thu 29, 2010 5:35 am
Posts: 796
Location: Simonton, Texas
I found it. Nice looking unit.
Unfortunately I already have 10 field intensity receivers and 6 selective level meters.

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Knowledge is useless unless you can share it. KA5OBI


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 Post subject: Re: Stoddart nm-12t what's this worth
PostPosted: Oct Tue 17, 2017 5:38 pm 
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Joined: Oct Wed 11, 2017 6:02 pm
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Its still up. I just listed as a 7 day auction last night so you still have time.


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