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Forums
4hv.org :: Forums :: Electromagnetic Radiation
4hv.org :: Forums :: Electromagnetic Radiation
Electromagnetic Radiation Forum
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Announcement
Amateur Radio Go to page: 1 2 3 8 9 10
Dave Marshall
Mon Feb 06 2006, 06:32PM		 98 86084 Conundrum
Sat Sept 08 2018, 04:30PM
 Topics
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playing with x-rays may get you raided and maybe fined!
JonIverson
Mon Oct 21 2019, 03:26PM		 5 10876 Mrkva
Fri May 07 2021, 03:49AM
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Nitrogen Laser teardown, and dye laser demo!
plazmatron
Tue Jul 07 2020, 11:35AM		 3 1277 plazmatron
Thu Aug 06 2020, 01:14PM
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Capturing energy below HV powerlines EMF as an experiment - how feasible is it?
nzoomed
Tue Jun 09 2020, 12:10PM		 7 1471 nzoomed
Sat Jul 11 2020, 08:46AM
No new posts on popular topic
personnal X Ray machine Go to page: 1 2 3
paulj
Mon Feb 04 2019, 08:17AM		 22 4954 paulj
Sat Jan 18 2020, 06:17PM
No unread posts
X-ray Generation Methods
Inducktion
Tue May 21 2019, 09:06AM		 8 1935 Conundrum
Tue Sept 17 2019, 06:48PM
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Magnetically Induced EMF with NO current in the path???
Signification
Mon Aug 05 2019, 06:52PM		 7 902 2Spoons
Tue Aug 06 2019, 10:33PM
No unread posts
Hg spectrum of a 15 foot Rowland grating of 1895
Physikfan
Fri Mar 15 2019, 05:13PM		 1 1385 Physikfan
Tue Mar 19 2019, 05:42PM
No unread posts
Increasing LF RFID range
Alex Yuan
Mon Feb 25 2019, 03:19PM		 3 868 Conundrum
Thu Feb 28 2019, 06:34AM
No new posts on popular topic
Melting Lead With Only Limited Facilities Go to page: 1 2 3
Proud Mary
Fri Jan 11 2019, 10:18PM		 20 3708 2Spoons
Fri Feb 22 2019, 09:25PM
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Manhattan Project
Conundrum
Fri Feb 15 2019, 05:07AM		 2 1123 Conundrum
Sat Feb 16 2019, 08:08AM
No new posts on popular topic
Making a Geiger-Müller Counter Go to page: 1 2 3 5 6 7
uzzors2k
Sun Jul 22 2007, 12:47PM		 66 37420 Conundrum
Fri Feb 15 2019, 05:13AM
No unread posts
Maximum Permissible RF Exposure FCC Regulations
Carbon_Rod
Tue Feb 12 2019, 05:24AM		 5 902 Sulaiman
Tue Feb 12 2019, 02:25PM
No unread posts
Electric field squeezing
Plasma
Tue Jan 29 2019, 10:11AM		 3 1045 Conundrum
Fri Feb 08 2019, 07:13AM
No unread posts
BBC Radio 4 audio appearing on 60kHz time from NPL
GeordieBoy
Sat Jan 26 2019, 08:52PM		 3 956 Proud Mary
Sun Jan 27 2019, 01:42PM
No unread posts
Narrow band RF filter options
Carbon_Rod
Tue Jan 22 2019, 07:40AM		 8 979 Carbon_Rod
Fri Jan 25 2019, 12:48AM
No unread posts
Huawei RRU3928 1800MHz radio base station teardown (part 1 of 2)
Mads Barnkob
Fri Dec 07 2018, 07:48AM		 1 1165 Mads Barnkob
Tue Jan 08 2019, 02:41PM
No unread posts
"Zero-loss core transformer"
Signification
Thu Nov 22 2018, 07:36AM		 2 1089 Dr. Slack
Thu Nov 22 2018, 09:57AM
No unread posts
Why put Beryllium Oxide parts in a Directional Coupler?
hboy007
Fri Sept 07 2018, 10:11PM		 3 1702 Conundrum
Sun Sept 23 2018, 01:04PM
No unread posts
Electronics goodie box competition
Conundrum
Fri Sept 07 2018, 08:01PM		 1 882 Conundrum
Fri Sept 07 2018, 08:01PM
No unread posts
SBM-21
Conundrum
Thu Apr 26 2018, 07:52AM		 9 2899 Conundrum
Fri Jul 20 2018, 08:09PM
No unread posts
Absorption plate set for gamma radiation
Physikfan
Tue Jul 10 2018, 10:44AM		 1 1086 Physikfan
Tue Jul 10 2018, 10:44AM
No new posts on popular topic
Legal aspects of the broadcast power Go to page: 1 2
Plasma
Tue May 29 2018, 02:19PM		 12 3067 Plasma
Sat Jun 30 2018, 11:42AM
No unread posts
Close look at low pressure sodium lamp. And milli-ohmetering.
klugesmith
Mon Jun 11 2018, 11:58AM		 4 1338 Hazmatt_(The Underdog)
Sun Jun 17 2018, 05:04PM
No unread posts
Ericsson RBS 2216 900 MHz base station teardown
Mads Barnkob
Fri Jul 01 2016, 08:32AM		 2 1951 Mads Barnkob
Thu Jun 07 2018, 08:53PM
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