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DIY/Homemade Geiger Muller Clicker V2
Posted inElectronics Hardware Nuclear

DIY/Homemade Geiger Muller Clicker V2

Posted by By Radu Motisan January 8, 2012
This geiger counter circuit features a regulated high voltage supply, with adjustable output. It can run on a single AA battery (1.5V)
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Digital Counter using CD4026
Posted inElectronics Hardware

Digital Counter using CD4026

Posted by By Radu Motisan December 22, 2011
A digital counter using CD4026 for fast event counting as those from Geiger Muller tubes or scintillation probes.
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Melting lead
Posted inHardware

Melting lead

Posted by By Radu Motisan December 22, 2011
Melting lead at 327.46 °C to recycle it as ingots.
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Tube: MR-04
Posted inHardware Tubes

Tube: MR-04

Posted by By Radu Motisan December 22, 2011
MR-04 is a ionization tube.
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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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Tube: VA-Z320
Posted inHardware Tubes

Tube: VA-Z320

Posted by By Radu Motisan November 27, 2011
VA-Z320 mica window geiger muller tube
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Tube: MCT-17 /SI-3B (си-3Б)
Posted inHardware Tubes

Tube: MCT-17 /SI-3B (си-3Б)

Posted by By Radu Motisan November 27, 2011
MCT-17 Mica Window Geiger Muller Tube
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Tube: SBM-19 (СБМ-19 ) Sensitive Geiger Muller
Posted inTubes

Tube: SBM-19 (СБМ-19 ) Sensitive Geiger Muller

Posted by By Radu Motisan November 27, 2011
SBM-19 Geiger Muller Tube
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Posted inHardware

Building a socket for a power tube – TGI2 400/16

Posted by By Radu Motisan October 12, 2011
How to build a socket for a big Russian hydrogen Thyratron tube using copper connectors made out of a pipe.
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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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Wireless Power Transmitter
Posted inElectronics Hardware

Wireless Power Transmitter

Posted by By Radu Motisan July 13, 2011
A wireless power transmitter used to send electrical energy without wires. It uses induction, an emitter and a receiver working on the 63.1KHz frequency.
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Electronic Ballast for fluorescent lamps
Posted inElectronics Hardware

Electronic Ballast for fluorescent lamps

Posted by By Radu Motisan April 18, 2011
A simple electronic ballast running on 220V designed to work with up to four small power fluorescent lamps
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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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DIY/Homemade Geiger Muller Clicker V1
Posted inElectronics Hardware Nuclear

DIY/Homemade Geiger Muller Clicker V1

Posted by By Radu Motisan March 21, 2011
An article presenting a simple DIY Geiger Muller counter using the Russian tube SI-22G and a single transistor regulated inverter that puts out 400V, as required by the tube. A very basic detector assembled in 5 minutes. See an operation comparison to the Radex RD1706.
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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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Simple DIY Induction heater
Posted inElectronics Hardware

Simple DIY Induction heater

Posted by By Radu Motisan March 2, 2011
A Royer oscillator with 2 IRF540 N-Channel mosfets, a 0.47uF Capacitor and a 1500uH inductor used for an induction heater. The mosfets remain cool, even with such small heatsinks.
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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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Multitester using ATMega8 and HD44780 LCD
Posted inElectronics Hardware

Multitester using ATMega8 and HD44780 LCD

Posted by By Radu Motisan December 12, 2010
An Atmega8 multimeter that can measure Transistors: Bipolar/Mosfet , Diodes and Double Diodes , Resistors, Capacitors: between 0.2nF to 7300μF, Triacs and Thyristors.
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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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