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Forums
4hv.org :: Forums :: Electromagnetic Radiation
4hv.org :: Forums :: Electromagnetic Radiation
Electromagnetic Radiation Forum
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Simple parabolic antenna, Marx Generator driven (EMP) Go to page: 1 2
The Imp
Sun Jan 15 2012, 09:47AM		 14 4838 jpsmith123
Tue Jan 17 2012, 02:08AM
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External quenching mechanism for Geiger tubes
radhoo
Mon Jan 02 2012, 07:41PM		 8 2427 Proud Mary
Wed Jan 11 2012, 05:45PM
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Grenadier's big thread of Röntgen related shenanigans Go to page: 1 2 3 28 29 30
Adam Munich
Mon Jun 07 2010, 01:41AM		 298 135039 Xray
Thu Jan 05 2012, 05:42AM
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My webcam can see IR... why?
Tetris
Tue Dec 27 2011, 04:24AM		 6 2296 2Spoons
Sun Jan 01 2012, 07:48PM
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magnetron coupling.
cedric
Sat Dec 24 2011, 12:52PM		 8 1931 hboy007
Sat Dec 31 2011, 05:58PM
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5mW 445nm laser? Go to page: 1 2
Hon1nbo
Thu Dec 15 2011, 03:50AM		 12 2526 dmg
Sat Dec 17 2011, 01:34AM
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red Laser from DVD burner, and making a pointer with it
Inducktion
Tue Dec 13 2011, 10:30PM		 5 1431 Wolfram
Fri Dec 16 2011, 11:08AM
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What determines the power output of a laser diode?
Inducktion
Wed Dec 14 2011, 02:51AM		 6 1298 Shrad
Fri Dec 16 2011, 10:32AM
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Radiated Immunity Test warning
klugesmith
Wed Dec 14 2011, 11:14PM		 1 862 klugesmith
Wed Dec 14 2011, 11:14PM
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SWR Meter Toroid and Component Selection
Dr. Who
Thu Dec 08 2011, 07:54PM		 5 7121 Proud Mary
Sat Dec 10 2011, 12:03AM
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Cheapest VCSELs?
Conundrum
Mon Nov 28 2011, 09:55AM		 3 1138 Pinky's Brain
Mon Nov 28 2011, 09:42PM
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Powering a Laser Diode and what to do with it...
Turkey9
Mon Nov 28 2011, 04:37AM		 5 1564 klugesmith
Mon Nov 28 2011, 07:26PM
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Does anyone have any technical info on coaxial TEM horns?
jpsmith123
Sun Nov 06 2011, 06:42PM		 2 1376 Proud Mary
Wed Nov 09 2011, 01:05AM
No new posts on popular topic
Experiments with inductive power transfer Go to page: 1 2
Adam Munich
Wed Nov 02 2011, 12:16AM		 11 4379 radiotech
Sat Nov 05 2011, 07:28PM
No new posts on popular topic
Calculating "velocity factor" (wifi antennas) Go to page: 1 2
Fnord
Sun Oct 30 2011, 04:12AM		 12 6956 Fnord
Tue Nov 01 2011, 11:26PM
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Physics question relating to medical isotopes
Download
Wed Oct 26 2011, 03:22AM		 7 1307 radiotech
Fri Oct 28 2011, 03:22AM
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DVD burner laser diode
hsieh
Thu Oct 20 2011, 12:41AM		 6 1622 Download
Wed Oct 26 2011, 10:58AM
No unread posts
EMP Gun kinda anyway
earth3
Sun Oct 16 2011, 01:00PM		 6 1880 earth3
Wed Oct 19 2011, 12:10PM
No unread posts
Add your bicycle hacks here
Conundrum
Sat Oct 08 2011, 02:00PM		 5 1604 Chip Fixes
Wed Oct 19 2011, 02:00AM
No new posts on popular topic
What to do with an oxidizer tube? (ionizing UV!) Go to page: 1 2
Inducktion
Mon Oct 10 2011, 06:15PM		 13 2721 radiotech
Fri Oct 14 2011, 12:55AM
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Neutrino physics
Conundrum
Tue Sept 27 2011, 08:45AM		 6 1416 testtest
Thu Oct 06 2011, 11:42PM
No unread posts
Homemade GPS Receiver
PSCG
Tue Oct 04 2011, 04:41PM		 5 1128 PSCG
Thu Oct 06 2011, 08:15AM
No unread posts
ADS-B receiver using satellite receiver guts
Conundrum
Fri Sept 23 2011, 09:25AM		 1 1015 Conundrum
Fri Sept 23 2011, 09:25AM
No new posts on popular topic
6L6 Suitabilitay for creating X-Rays Go to page: 1 2
Dragon64
Mon Aug 29 2011, 12:57AM		 12 2897 radhoo
Thu Sept 15 2011, 08:59AM
No unread posts
make a cloud chamber with liquid nitrogen
hsieh
Sat Sept 10 2011, 02:35AM		 2 1660 Forty
Sat Sept 10 2011, 04:02PM
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