Central claims: NRGFromTheVac

Source gap note: the project holds one blog-page printout (22 pp., text readable) and one annotated circuit image (no text layer; viewed as an image). There are no primary documents by NRGFromTheVacuum himself: the demonstration is known only through the blogger's description and commenters' reports [read]. The video, circuit link and schematics are missing from the text. Conclusions about what the video shows rest on that secondhand description.

Updated after QE (2026-10-04): the list below follows the arbiter's corrected claim list (inventor's claim, blogger's overlay, commenters' theories kept apart). Items marked [web] come from the Investigator, not the project documents.

1. Inventor's claim: quickly connecting a 24 V battery to a ferrite-cored 800-turn bifilar coil and then breaking the circuit sends a counter-potential through coil and battery into a capacitor, giving far more voltage than the source (200 V; 170 V seen in the video); timing is the key. Relayed in his name: up to just over 600 V, and a mechanical switch could keep the battery charged indefinitely [web, relayed].
2. Blogger's overlay (chadj2): the capacitor charges with no closed current loop and no battery current, by simultaneous make and break of two switches. The circuit image shows the battery in series in the charging path while S1/S2 are closed and a rotor that switches sequentially; the blogger later wrote the switches are "not supposed to be closed at the same time" [web, 2016], so the sequence is undetermined.
3. Two kinds of spark occur at one gap, an ordinary heating one and an "endothermic" one that cools the electrodes and frosts them at high voltage (inventor; witnesses recall lost videos [web]). The cold spark may come from the inventor's separate high-voltage (6 kV or more, CSET/Gray-type) work rather than the 24 V circuit [web, open].
4. "Cold electricity", positrons, an "s-field", Warren's longitudinal and negative-mass electrons, Sweet's barium-ferrite bifilar coils and the Genesis negative inductor (same-sign charges give a negative magnetic field) are the blog author's and commenters' theories, not the inventor's. Also in the thread: Rodin-type asymmetric coils tapping atmospheric potential, and chadj2's magnetized-object drop question.
5. Replications are informal and mixed, and nobody measured energy: Andreas's plain-wire build charged the capacitor above battery voltage (same with a diode) and his bifilar build gave nothing; Warren reports diode-dependent voltages (215-225 V vs 100-115 V) and cold neon glow; CitizenDC built a bifilar version with parallel strands [web]. Commenters offer conventional explanations (switching-time overlap, displacement current, high-voltage RF, Peltier-type cooling).
6. Component data conflict: coil 4.7 ohm (inventor, relayed [web]) vs 30 ohm (blog and image; the image's "30 Ohms" is easily misread as 300); capacitor "30 uF 4000 V" (blog) vs "250 V 30 uF" (inventor, relayed [web]) vs "30 F" (image slip). The 4.7 ohm value is the only one consistent with both the winding length and the energy arithmetic (arbiter).