Tesla Universe (teslauniverse.com)

Investigator (STEP I), run 2026-10-08. Saved page text (evidence trail, not for publication) is in research/pages/. Findings are leads, not verdicts.

Searched

Google: Tesla laboratory fire March 13 1895 "South Fifth Avenue" newspaper cause of fire; Tesla Colorado Springs "1100 amperes"; "Nicholas Terbo" OR "Nikola Trbojevic" ...; Tesla worked for RCA under name "Terbo"; Derek Ahlers query
Fetched: articles/my-inventions-iv-discovery-tesla-coil-and-transformer; articles/inventor-teslas-loss

My Inventions IV (Electrical Experimenter, 1919), figure caption: "The Gigantic Tesla Coil Which Produced These Bolts of Thor Was Capable of Furnishing a Current of 1,100 Amperes in the High Tension Secondary. The Primary Coil Had a Diameter of 51 Feet!" It also gives the ball formula "V = 75,400 r ... 75,400 x 40 = 3,016,000 Volts" [web: https://teslauniverse.com/nikola-tesla/articles/my-inventions-iv-discovery-tesla-coil-and-transformer]. The primary diameter in the caption is 51 ft; the book says the primary and secondary were on a 75 ft cylinder (deep read p.40), so the two figures differ.
"Inventor Tesla's Loss" (1895 report): "By a fire which occurred at 33 and 35 South Fifth Avenue, New York City, on the morning of March 13, Nikola Tesla ... sustained a severe loss". No cause or arson is mentioned [web: https://teslauniverse.com/nikola-tesla/articles/inventor-teslas-loss].
Google snippets (not opened): "My grandmother was Tesla's sister, Angelina, and my father, Nikola Trbojevich (socially, Nicholas Terbo), was Tesla's nephew" (William Terbo, Tesla Sketches / Hotel New Yorker plaque); "Terbo ... retired after working as an executive for RCA; then Western Union and finally for MCI" (Correspondence with Relatives); timeline for 1934: "Tesla promptly moved to the Hotel New Yorker ... The debt owed to Hotel Governor Clinton ...".
Snippet "Nikola Tesla's Electric Car - Folklore... or Historical Fact?" (Tesla Universe article; not opened).

Claim 2: the 1100 A is sourced to Tesla (see the correction in sites.md). The 51 ft primary diameter is a check on the book's 75 ft.
Claim 2, RCA/"Terbo": the Terbo name belongs to Tesla's nephew's family, and the great-nephew was an RCA executive. This is a candidate origin of the book's story (lead).