A digital counter using CD4026 for fast event counting as those from Geiger Muller tubes or scintillation probes.
A Longitudinal Excitation Nitrogen Laser design, using a fridge pump for vacuum and N2 from air as lasing medium.
How to build a socket for a big Russian hydrogen Thyratron tube using copper connectors made out of a pipe.
Using a hydrogen Thyratron tube to switch a Tesla Coil. The Thyratron tube replaces the noisy spark gap.
A very customizable pulse generator built using three 555 timers, to control a relaxation oscillator hydrogen thyratron.
My DIY PFN for a relaxation oscillator using a hydrogen thyratron.
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.
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.
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.
A simple electronic ballast running on 220V designed to work with up to four small power fluorescent lamps
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.
A CW High voltage supply that produces up to 140000 volts (140KV) . Simple, clean design, without oil, but with high quality multipliers.
Build a disc shaped flyback secondary. A robust new design, that will do a great job in your High Voltage projects.
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.
An article on Thyratrons and a film showing three energized tubes : the 714, the 309/FG17 and the ELC1B.
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.
My first attempt in building an inertial electrostatic confinement device . It didn’t work.
An Atmega8 multimeter that can measure Transistors: Bipolar/Mosfet , Diodes and Double Diodes , Resistors, Capacitors: between 0.2nF to 7300μF, Triacs and Thyristors.
Build a Ion Thruster using light materials and power it using a 50KV supply to see another kind of propulsion.
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.