Built a Dual 833C @  Dual 833C and love the power; however, need more power so a Quad 883C was in the plans. This coil started in Feb 2007 and was completed in July 2009. The coil was  getting heavy with four 1kwatt MOTs so a new base was made of steel @ video.

After the Teslathon (W.W.T. 2009) Quadzilla was broken down to be built even stronger.

A new Secondary of 18AWG to increase FO 100khz.

  • New Primary to reduce coupling.

  • New Grid Feedback Coil with improved insulation.

  • A larger ground strap to ensure no current issues/overheating.

  • A new pulser with fiber input is in experimentation now to allow modulation of the cathode.  Final product at the W.W.T 2010!

        The power supply  diagram:   Schematic:

A video of the overview of coil @ video