Beyond RF. Beyond communications. This is where we go when the engineers get curious and the voltages stop being polite. Marx generators, voltage multipliers, high-voltage transformers — documented, built, and tested in Tennessee. Full build guides, 3D-printable components, and the honest account of what happened when we turned it on.
Full build documentation, schematic descriptions, component lists, assembly notes, test results, and 3D-printable STL file downloads are available exclusively to SpaceCommsKit Patreon supporters at the High Voltage Lab tier and above.
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The Marx generator is an elegant circuit — charge capacitors in parallel at low voltage, switch them in series to multiply. This V1 is a 6-stage design, each stage charged to 5kV, producing approximately 30kV impulse output. Built on a 3D-printed acrylic-like frame with spark gap switches. The complete story from first calculation to first arc.
V2 takes every lesson from the first build and applies it. Higher stage count, improved spark gap geometry for more consistent triggering, better capacitor selection, and a redesigned 3D-printed housing that manages the electric field distribution more effectively. The arc discharge from this one is something else.
Where the Marx generator produces impulses, the Cockcroft-Walton multiplier produces steady DC at high voltage. A cascade of diodes and capacitors, each stage adding voltage on top of the last. The physics are elegant. The assembly is meditative. The output will make your hair stand up — literally.
A hand-wound high-voltage transformer — the foundation of Tesla coils, HVAC power supplies, and plasma devices. This dossier covers transformer design from first principles: turns ratio, core selection, insulation, winding technique, and resonant drive circuits. Getting the resonant frequency right is where the magic happens.