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High Voltage inverter KIT
Posted inHardware High Voltage

High Voltage inverter KIT

Posted by By Radu Motisan March 10, 2018
This blog was home to some exciting high voltage related experiments already. While my time…
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3V to 400V regulated inverter for Geiger counters
Posted inElectronics Hardware High Voltage Nuclear

3V to 400V regulated inverter for Geiger counters

Posted by By Radu Motisan July 18, 2014
A robust regulated high voltage supply, an inverter (boost converter / step-up) 3V to 400V for portable applications.
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Electric Fence Circuit for perimeter protection
Posted inElectronics Hardware High Voltage

Electric Fence Circuit for perimeter protection

Posted by By Radu Motisan April 15, 2014
Two battery operated, portable, electric fence designs using 555 and 556 timers.
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Small size High-Voltage regulated inverter
Posted inElectronics Hardware High Voltage

Small size High-Voltage regulated inverter

Posted by By Radu Motisan March 16, 2014
Build a battery operated, compact high voltage inverter for Nixie tubes, neon bulbs or Geiger counters.
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555 Timer revisited
Posted inElectronics Hardware High Voltage

555 Timer revisited

Posted by By Radu Motisan December 6, 2013
An article on the well known 555 timer and a few rather unknown applications.
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UT50 NaI Scintillation probe
Posted inElectronics Hardware High Voltage Nuclear

UT50 NaI Scintillation probe

Posted by By Radu Motisan August 7, 2013
I met some great people today, and I also got a wonderful device for my…
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Repairing a Victoreen CDV-700 6B Dosimeter
Posted inElectronics Hardware High Voltage Nuclear

Repairing a Victoreen CDV-700 6B Dosimeter

Posted by By Radu Motisan May 16, 2013
Fixing a CDV700 dosimeter can be difficult because original replacement components are not an easy find.
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DIY/Homemade Geiger Muller Digital Counter V3
Posted inElectronics Hardware High Voltage Nuclear Tubes

DIY/Homemade Geiger Muller Digital Counter V3

Posted by By Radu Motisan October 11, 2012
A story of making a DIY Digital Geiger counter circuit, that can be used with several tubes. Add an enc28j60 Ethernet module and use the data to create graphs available online!
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Vacuum tube tesla coil (VTTC) using Russian GU-81m
Posted inElectronics Hardware High Voltage

Vacuum tube tesla coil (VTTC) using Russian GU-81m

Posted by By Radu Motisan September 26, 2012
Vasil sent me 3 of his complete tesla coil systems. So here I am rebuilding his GU81m VTTC.
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Longitudinal Excitation Nitrogen Laser
Posted inHardware High Voltage Optics

Longitudinal Excitation Nitrogen Laser

Posted by By Radu Motisan December 21, 2011
A Longitudinal Excitation Nitrogen Laser design, using a fridge pump for vacuum and N2 from air as lasing medium.
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Thyratron Switched Tesla coil (THYTC)
Posted inHardware High Voltage

Thyratron Switched Tesla coil (THYTC)

Posted by By Radu Motisan October 10, 2011
Using a hydrogen Thyratron tube to switch a Tesla Coil. The Thyratron tube replaces the noisy spark gap.
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Relaxation oscillator using a Hydrogen Thyratron
Posted inHardware High Voltage

Relaxation oscillator using a Hydrogen Thyratron

Posted by By Radu Motisan October 9, 2011
Some details on the relaxation oscillators and my implementation using a hydrogen thyratron.
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Pulse generator (Variable duration, frequency and amplitude)
Posted inHardware High Voltage

Pulse generator (Variable duration, frequency and amplitude)

Posted by By Radu Motisan October 9, 2011
A very customizable pulse generator built using three 555 timers, to control a relaxation oscillator hydrogen thyratron.
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Posted inHardware High Voltage

Pulse forming network

Posted by By Radu Motisan October 9, 2011
My DIY PFN for a relaxation oscillator using a hydrogen thyratron.
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Twin Marx Generator
Posted inHardware High Voltage

Twin Marx Generator

Posted by By Radu Motisan October 9, 2011
Some pictures with my marx generator throwing high voltage discharges!
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Tube: TGI2 400/16 (ТГИ2-400/16), Russian hydrogen thyratron
Posted inHardware High Voltage Tubes

Tube: TGI2 400/16 (ТГИ2-400/16), Russian hydrogen thyratron

Posted by By Radu Motisan October 9, 2011
A hydrogen thyratron is a device capable of switching big amounts of energy. The major advantage over other thyratrons is that the deionization time is reduced by using the hydrogen gas, generated in a small reservoir inside the tube, from a metallic Hydride.
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Battery powered high voltage multiplier for gas igniter or stun gun
Posted inHardware High Voltage

Battery powered high voltage multiplier for gas igniter or stun gun

Posted by By Radu Motisan September 8, 2011
Learn how to build a compact gas igniter or stun gun, powered by a 9V battery.
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Electric Fence – 20KV pulses for perimeter defense
Posted inHardware High Voltage

Electric Fence – 20KV pulses for perimeter defense

Posted by By Radu Motisan September 8, 2011
Protect your tent's perimeter from bears, when in the wild. A 20KV pulse generator will inflict painful shocks to anyone touching the perimeter electric fence wire. Not lethal, but very painful, enough to put unwanted visitors on the run.
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How to build a Tesla Coil #4
Posted inElectronics Hardware High Voltage

How to build a Tesla Coil #4

Posted by By Radu Motisan September 8, 2011
A small spark gap tesla coil, a good example for an relaxation oscillator.
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Rewind a Microwave Oven Transformer
Posted inElectronics Hardware High Voltage

Rewind a Microwave Oven Transformer

Posted by By Radu Motisan September 8, 2011
How to rewind a MOT transformer for a high current low voltage power supply.
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Vacuum tube tesla coil (VTTC) using Russian GI-30
Posted inElectronics Hardware High Voltage

Vacuum tube tesla coil (VTTC) using Russian GI-30

Posted by By Radu Motisan April 11, 2011
A vacuum tube tesla coil built around the Russian tetrode GI-30. My first VTTC and my first vacuum tube circuit, and some very rewarding results.
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High Voltage Power supply – 140KV
Posted inHardware High Voltage

High Voltage Power supply – 140KV

Posted by By Radu Motisan March 26, 2011
A CW High voltage supply that produces up to 140000 volts (140KV) . Simple, clean design, without oil, but with high quality multipliers.
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Homemade Flyback secondary -3-
Posted inHardware High Voltage

Homemade Flyback secondary -3-

Posted by By Radu Motisan March 26, 2011
Build a disc shaped flyback secondary. A robust new design, that will do a great job in your High Voltage projects.
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Thyratrons
Posted inElectronics Hardware High Voltage Tubes

Thyratrons

Posted by By Radu Motisan March 17, 2011
An article on Thyratrons and a film showing three energized tubes : the 714, the 309/FG17 and the ELC1B.
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Posted inHardware High Voltage

A Farnsworth–Hirsch Fusor failed attempt

Posted by By Radu Motisan January 7, 2011
My first attempt in building an inertial electrostatic confinement device . It didn't work.
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Ion thruster using 50KV Supply
Posted inHardware High Voltage

Ion thruster using 50KV Supply

Posted by By Radu Motisan December 1, 2010
Build a Ion Thruster using light materials and power it using a 50KV supply to see another kind of propulsion.
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Homemade/DIY High voltage probe
Posted inHardware High Voltage

Homemade/DIY High voltage probe

Posted by By Radu Motisan November 29, 2010
Using a high voltage 1GOhm resistor to built a DIY high voltage probe, to measure voltages up to 55KV with a normal multimeter, by scaling the voltage down by 1/1000.
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Posted inHardware High Voltage Nuclear Optics

X-ray intensifying screen

Posted by By Radu Motisan November 29, 2010
Get X-ray intensifying/fluorescent screens from X-ray cassettes used for radiography.
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NaI Scintillation Probe and Gamma Spectroscopy
Posted inElectronics Hardware High Voltage Nuclear Optics

NaI Scintillation Probe and Gamma Spectroscopy

Posted by By Radu Motisan November 29, 2010
A scintillation probe enclosing the regulated high voltage supply, the signal amplifier, the photomultiplier and the scintillation crystal (NaI). Building a DIY counter for a NaI Scintillation probe. AtMega8 and a bluetooth module for wireless data output. A cheap and easy to build homemade dosimeter with applications in spectroscopy.
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High Current Inverter using ZVS
Posted inElectronics Hardware High Voltage

High Current Inverter using ZVS

Posted by By Radu Motisan November 29, 2010
Use a ZVS Driver as an invertor for a high current supply.
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