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Forums
4hv.org :: Forums :: High Voltage
4hv.org :: Forums :: High Voltage
High Voltage Forum
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Automotive ignition coil: firing primary of coil for spark on RISING or COLLAPSING mag-field?
Signification
Sun Dec 02 2018, 06:55AM		 8 1648 Sulaiman
Thu Mar 14 2019, 01:27AM
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Transformer Type
GammaRay
Sun Mar 10 2019, 10:53PM		 5 838 GammaRay
Wed Mar 13 2019, 09:07PM
No new posts on popular topic
Measuring capacitance Go to page: 1 2
Plasma
Wed Feb 20 2019, 01:02AM		 10 1690 Signification
Wed Mar 06 2019, 09:24PM
No new posts on popular topic
Chinese Small 15kV Transformers and the Oscillograms that will Follow. Go to page: 1 2
Patrick
Thu Jan 31 2019, 12:11AM		 17 2840 MRMILSTAR
Fri Mar 01 2019, 05:08AM
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Marx Generator in progress!
ritaismyconscience
Mon Feb 11 2019, 09:09AM		 1 1516 ritaismyconscience
Mon Feb 11 2019, 09:11AM
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Preparing High Voltage Oil. Go to page: 1 2 3
Patrick
Sun Jul 08 2018, 08:07AM		 27 4253 Patrick
Tue Feb 05 2019, 05:58AM
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Dual Van de Graaff Generator Go to page: 1 2
Nickel
Mon Mar 19 2018, 10:54AM		 16 3506 Nickel
Mon Feb 04 2019, 09:36AM
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The MEGA MOT!
Mr.Warwickshire
Tue Jan 29 2019, 06:13AM		 8 1011 Mr.Warwickshire
Sat Feb 02 2019, 02:06AM
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high voltage rectifiers with low power filaments?
klugesmith
Sat Jan 12 2019, 07:06AM		 9 809 Patrick
Sat Feb 02 2019, 01:56AM
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Why do ultra-thin (40awg) secondaries burn out ?
Patrick
Sun Dec 30 2018, 09:57PM		 6 824 johnf
Wed Jan 30 2019, 06:12PM
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GE AMX-II, mobile 110kV X-RAY system teardown
Mads Barnkob
Tue Oct 02 2018, 10:42AM		 5 1213 Mr.Warwickshire
Tue Jan 29 2019, 06:26AM
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Modification to Chinese Marx generator
MRMILSTAR
Mon Jan 28 2019, 12:26AM		 2 670 kimbomba
Mon Jan 28 2019, 05:41PM
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0-to-3000 volt bench supply for biasing radiation detectors
klugesmith
Sun Jan 20 2019, 06:58PM		 1 785 Proud Mary
Wed Jan 23 2019, 11:43PM
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HV diodes and Trr.
Patrick
Sun Jan 20 2019, 05:32AM		 1 824 Sulaiman
Sun Jan 20 2019, 09:26AM
No unread posts
Measuring HV and Low Current Waveforms from Flybacks.
Patrick
Sat Jan 19 2019, 07:38AM		 1 612 Patrick
Sat Jan 19 2019, 07:46AM
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AC vs DC fuses, high current, explosive destructive testing and theory
Mads Barnkob
Wed Jan 16 2019, 07:28AM		 1 549 Patrick
Wed Jan 16 2019, 05:39PM
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IKEA "Blanda Blank" Serving Bowls
jpsmith123
Mon Dec 03 2018, 03:14PM		 5 898 Nik
Mon Jan 07 2019, 12:22AM
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To-The-Point tips to Get bigger sparks for DRSSTC?
antoine_zak
Fri Jan 04 2019, 05:33PM		 1 485 Sulaiman
Fri Jan 04 2019, 08:30PM
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To-The-Point tips to Get bigger sparks for DRSSTC?
antoine_zak
Fri Jan 04 2019, 05:34PM		 0 434
No unread posts
Exciting Xmas
Patric
Tue Dec 25 2018, 10:07AM		 1 532 Patric
Tue Dec 25 2018, 10:20AM
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My finished homewound/made ferrite HF HVAC transformer
Platinum
Fri Dec 14 2018, 04:05PM		 7 1182 Patrick
Tue Dec 25 2018, 12:30AM
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eBay $2 "15kV generator" kit improvements
866rectifier
Fri Oct 19 2018, 09:48PM		 7 2319 kimbomba
Mon Dec 17 2018, 05:29PM
No new posts on popular topic
Neon sign transformer power output Go to page: 1 2
klugesmith
Sun Aug 26 2018, 01:57AM		 17 2920 klugesmith
Tue Dec 11 2018, 10:48PM
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A few questions on homemade flybacks
Platinum
Sun Dec 02 2018, 06:58PM		 8 1032 Blackcurrant
Tue Dec 04 2018, 02:15PM
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'Lifter' design used as a thruster to power a model plane
Dr. Slack
Thu Nov 22 2018, 06:26AM		 7 836 Uspring
Thu Nov 29 2018, 01:47PM
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