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For the term "don l smith european patents".

Don Smith Device Project Part 26: Extra Inductor Added, Built-In Radiant Antenna?

made an observation while looking at Destine2012’s Dynatron design, a Russian-Smith variant which has been demonstrated as successful. and i noticed something very interesting….. and the same effect ocurs when the inductor is inside…

40 Don Smith Device 1/01/13: Dual Quarter Wavelength Step-up Tune and 50 Watt Halogen

Here i have improved the gap further by restricting the break-over voltage to a much higher level before spark discharge event occurs, Done by using the wider surface polished brass electrodes instead of smaller…