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[ driver tree · DRSSTC · build · no driver photo archived ]

Steve Ward DRSSTC Magnifier II: a nine foot magnifier Tesla coil

second magnifier · ~9 ft first light · Apr 2005

His own words: “some of my own ideas of what I thought should work,” aiming for 10-12 ft out of a compact resonator. Primary an 18 in coil of 12.8 turns in 3/8 in copper tube, “the most rigid primary I have ever made”; secondary 12.75×19 in on sonotube; tertiary around 150 mH; a 0.36 μF 10 kV MMC tank cap; overall coupling targeted around k=0.25 across all three coils. First light on 30 Apr 2005 reached about 9 ft. The page’s “driver” photos show the coil assembly, not the electronics. No board photo was found, so that slot is left blank.

Schematics and photos

Sources

This is the card from the driver tree, written from what the builder published. Send corrections through the forum.