The same principle for generating Free Energy from the Ether have been used by Gradusov Vladimir aka Zebra11. He is not Russian EE but Radio man. Now is a pensioner but actively work on FreeEnergy devices.
Vladimir Short-Circuiting and his "Know How ?"
He used Shot-Circuited energized coil. This time he is short-circuiting AC sourcse via MOSFET in Full Wave Rectifier Bidge. Role of MOSFET is fast and high conductive switch. Switch is short circuiting sine 50Hz waveform with the frequency of coil which stand after two serial capacitors (Master Oscillator Coil). Any freq. from 100KHz-500KHz could be used for switching the MOSFET. That master oscillator coil he was named Resonator. On this way short-circuited AC power transformer suck Etheric energy to resonator due to cancelationof two opposite E-fileds while auto create Magnetic Resonance - Magnetic Whirl.
Magnetic resoqnnce is a process of creating scalar magnetic whirl (field) which is a parent of cold currents in form of strong radial shock waves. Bifilar catch this Magnetic Whirl formed in resonator coil and make energy transformation. Cold current shock waves make hyper fast electron's spin resonance (rotation at their respective own places) in copper crystal lattice of Bifilar. To direct high electron mobility conducting current to the load experienced experimenter should boost potential (rise voltage) in bifilar coil while break electron lattice position treshold occure.
Powerful stream of high mobility conducting electrons automatically run to the load, with very high kinetic energy state and reavalanche all electrons on their path , triggering additional avalanche coorent boost (avalanche rush current). Proces is similar like macro creation of Ocean killer wave/s. This system mast be controlled for excesive energy (current) output. This was done with correct adjusting Skvaznost (Skvaznost is a reciprocial od duty cycle S = 1/D) and frequency of switching. In his BTG device bifilar play important a role as a Radiant Energy Converter (Tesla's term) or simple saying Current Booster and Kinetic Transformer. It work as Cold-> Hot current kinetic converter and a power source with very low output impendance, supplying 220v:12v AC inverter and variable pulse and skvaznost cycle generator with MOSFET driver. Circuit once looped oneselfs,free run untill all conditions were meet. He told that Etheric Magneto-Resonance process has been involved in his real device.
One of crucial things is a bifilar must be wounded in Phi Golden section ratio, keepeing the natural Etheric flow through this ratio.