{
  "generated_at": "2026-04-29",
  "quality_note": "Modern guide diagrams are explanatory reconstructions, not historical figure evidence.",
  "total_records": 20,
  "records": [
    {
      "id": "rotating-magnetic-field",
      "title": "Rotating Magnetic Field From Quadrature Fluxes",
      "subtitle": "Modern reading aid for induction-machine field language in AC and Theoretical Elements sources.",
      "file": "rotating-magnetic-field.svg",
      "source_path": "diagrams/recreated/rotating-magnetic-field.svg",
      "public_path": "/diagrams/rotating-magnetic-field.svg",
      "public_url": "/diagrams/rotating-magnetic-field.svg",
      "sources": [
        "theory-calculation-alternating-current-phenomena",
        "theoretical-elements-electrical-engineering",
        "theory-calculation-electric-apparatus"
      ],
      "concepts": [
        "symbolic-method",
        "magnetism",
        "phase",
        "induction-motor"
      ],
      "status": "modern-recreated-guide-diagram",
      "quality_note": "Generated modern reading aid; not an original Steinmetz figure."
    },
    {
      "id": "distributed-constants-line",
      "title": "Distributed Constants Of A Transmission Line",
      "subtitle": "Modern reading aid for line capacity, inductance, leakage, waves, and transients.",
      "file": "distributed-constants-line.svg",
      "source_path": "diagrams/recreated/distributed-constants-line.svg",
      "public_path": "/diagrams/distributed-constants-line.svg",
      "public_url": "/diagrams/distributed-constants-line.svg",
      "sources": [
        "theory-calculation-transient-electric-phenomena-oscillations",
        "theory-calculation-alternating-current-phenomena-1900",
        "theory-calculation-electric-circuits"
      ],
      "concepts": [
        "distributed-constants",
        "capacity",
        "inductance",
        "waves"
      ],
      "status": "modern-recreated-guide-diagram",
      "quality_note": "Generated modern reading aid; not an original Steinmetz figure."
    },
    {
      "id": "surge-impulse-reflection",
      "title": "Impulse Surge And Reflection",
      "subtitle": "Modern reading aid for lightning, impulses, discharges, and traveling waves.",
      "file": "surge-impulse-reflection.svg",
      "source_path": "diagrams/recreated/surge-impulse-reflection.svg",
      "public_path": "/diagrams/surge-impulse-reflection.svg",
      "public_url": "/diagrams/surge-impulse-reflection.svg",
      "sources": [
        "elementary-lectures-electric-discharges-waves-impulses",
        "electric-discharges-waves-impulses-1914",
        "general-lectures-electrical-engineering"
      ],
      "concepts": [
        "lightning-surges",
        "impulse-current",
        "traveling-wave"
      ],
      "status": "modern-recreated-guide-diagram",
      "quality_note": "Generated modern reading aid; not an original Steinmetz figure."
    },
    {
      "id": "dielectric-magnetic-energy-storage",
      "title": "Magnetic And Dielectric Energy Storage",
      "subtitle": "Modern reading aid for Steinmetz's paired magnetic-field and dielectric-field language.",
      "file": "dielectric-magnetic-energy-storage.svg",
      "source_path": "diagrams/recreated/dielectric-magnetic-energy-storage.svg",
      "public_path": "/diagrams/dielectric-magnetic-energy-storage.svg",
      "public_url": "/diagrams/dielectric-magnetic-energy-storage.svg",
      "sources": [
        "theoretical-elements-electrical-engineering",
        "elementary-lectures-electric-discharges-waves-impulses",
        "electric-discharges-waves-impulses-1914"
      ],
      "concepts": [
        "dielectric-field",
        "magnetic-field",
        "energy-storage"
      ],
      "status": "modern-recreated-guide-diagram",
      "quality_note": "Generated modern reading aid; not an original Steinmetz figure."
    },
    {
      "id": "admittance-plane",
      "title": "Admittance Plane",
      "subtitle": "Modern reading aid for conductance, susceptance, and reciprocal impedance.",
      "file": "admittance-plane.svg",
      "source_path": "diagrams/recreated/admittance-plane.svg",
      "public_path": "/diagrams/admittance-plane.svg",
      "public_url": "/diagrams/admittance-plane.svg",
      "sources": [
        "theory-calculation-alternating-current-phenomena",
        "theoretical-elements-electrical-engineering"
      ],
      "concepts": [
        "admittance",
        "conductance",
        "susceptance",
        "symbolic-method"
      ],
      "status": "modern-recreated-guide-diagram",
      "quality_note": "Generated modern reading aid; not an original Steinmetz figure."
    },
    {
      "id": "harmonic-wave-shape",
      "title": "Equivalent Sine Waves And Harmonics",
      "subtitle": "Modern reading aid for wave-shape analysis and higher harmonics.",
      "file": "harmonic-wave-shape.svg",
      "source_path": "diagrams/recreated/harmonic-wave-shape.svg",
      "public_path": "/diagrams/harmonic-wave-shape.svg",
      "public_url": "/diagrams/harmonic-wave-shape.svg",
      "sources": [
        "general-lectures-electrical-engineering",
        "theoretical-elements-electrical-engineering",
        "engineering-mathematics"
      ],
      "concepts": [
        "harmonics",
        "wave-shape",
        "fourier-analysis"
      ],
      "status": "modern-recreated-guide-diagram",
      "quality_note": "Generated modern reading aid; not an original Steinmetz figure."
    },
    {
      "id": "hysteresis-loss-law",
      "title": "Hysteresis Loss Law",
      "subtitle": "Modern reading aid for the Steinmetz law and magnetic energy loss per cycle.",
      "file": "hysteresis-loss-law.svg",
      "source_path": "diagrams/recreated/hysteresis-loss-law.svg",
      "public_path": "/diagrams/hysteresis-loss-law.svg",
      "public_url": "/diagrams/hysteresis-loss-law.svg",
      "sources": [
        "theory-calculation-alternating-current-phenomena",
        "theoretical-elements-electrical-engineering",
        "engineering-mathematics"
      ],
      "concepts": [
        "hysteresis",
        "magnetic-loss",
        "effective-resistance"
      ],
      "status": "modern-recreated-guide-diagram",
      "quality_note": "Generated modern reading aid; not an original Steinmetz figure."
    },
    {
      "id": "synchronous-reactor-power-flow",
      "title": "Reactors And Synchronizing Power",
      "subtitle": "Modern reading aid for the Commonwealth Edison report and system-stability mathematics.",
      "file": "synchronous-reactor-power-flow.svg",
      "source_path": "diagrams/recreated/synchronous-reactor-power-flow.svg",
      "public_path": "/diagrams/synchronous-reactor-power-flow.svg",
      "public_url": "/diagrams/synchronous-reactor-power-flow.svg",
      "sources": [
        "commonwealth-edison-generating-system-trouble",
        "theory-calculation-electric-circuits"
      ],
      "concepts": [
        "synchronizing-power",
        "power-limiting-reactors",
        "reactance"
      ],
      "status": "modern-recreated-guide-diagram",
      "quality_note": "Generated modern reading aid; not an original Steinmetz figure."
    },
    {
      "id": "field-energy-relativity-boundary",
      "title": "Field Of Energy Boundary",
      "subtitle": "Modern reading aid for Steinmetz's field language in Relativity and Space.",
      "file": "field-energy-relativity-boundary.svg",
      "source_path": "diagrams/recreated/field-energy-relativity-boundary.svg",
      "public_path": "/diagrams/field-energy-relativity-boundary.svg",
      "public_url": "/diagrams/field-energy-relativity-boundary.svg",
      "sources": [
        "four-lectures-relativity-space",
        "theoretical-elements-electrical-engineering"
      ],
      "concepts": [
        "field-language",
        "ether",
        "relativity",
        "energy-field"
      ],
      "status": "modern-recreated-guide-diagram",
      "quality_note": "Generated modern reading aid; not an original Steinmetz figure."
    },
    {
      "id": "engineering-number-plane",
      "title": "Engineering Number Plane",
      "subtitle": "Modern reading aid for number, direction, and symbolic calculation in Engineering Mathematics.",
      "file": "engineering-number-plane.svg",
      "source_path": "diagrams/recreated/engineering-number-plane.svg",
      "public_path": "/diagrams/engineering-number-plane.svg",
      "public_url": "/diagrams/engineering-number-plane.svg",
      "sources": [
        "engineering-mathematics",
        "theory-calculation-alternating-current-phenomena"
      ],
      "concepts": [
        "complex-quantities",
        "number",
        "symbolic-method"
      ],
      "status": "modern-recreated-guide-diagram",
      "quality_note": "Generated modern reading aid; not an original Steinmetz figure."
    },
    {
      "id": "spectrum-of-radiation",
      "title": "Spectrum Of Radiation",
      "subtitle": "Modern navigation guide for Steinmetz's electric-wave, visible-light, ultraviolet, and X-ray spectrum bridge.",
      "file": "spectrum-of-radiation.svg",
      "source_path": "diagrams/recreated/spectrum-of-radiation.svg",
      "public_path": "/diagrams/spectrum-of-radiation.svg",
      "public_url": "/diagrams/spectrum-of-radiation.svg",
      "sources": [
        "radiation-light-and-illumination"
      ],
      "concepts": [
        "radiation",
        "electric-waves",
        "frequency",
        "spectrum",
        "ether"
      ],
      "status": "modern-recreated-guide-diagram",
      "quality_note": "Generated modern reading aid; not an original Steinmetz figure."
    },
    {
      "id": "ac-symbolic-method-redraw-sheet",
      "title": "AC Symbolic Method Redraw Sheet",
      "subtitle": "Modern redraw sheet for rectangular components, resultant addition, and quarter-period j rotation.",
      "file": "ac-symbolic-method-redraw-sheet.svg",
      "source_path": "diagrams/recreated/ac-symbolic-method-redraw-sheet.svg",
      "public_path": "/diagrams/ac-symbolic-method-redraw-sheet.svg",
      "public_url": "/diagrams/ac-symbolic-method-redraw-sheet.svg",
      "sources": [
        "theory-calculation-alternating-current-phenomena",
        "theory-calculation-alternating-current-phenomena-1897",
        "theory-calculation-alternating-current-phenomena-1900",
        "engineering-mathematics"
      ],
      "concepts": [
        "symbolic-method",
        "complex-quantities",
        "phasor",
        "operator-j"
      ],
      "status": "modern-recreated-guide-diagram",
      "quality_note": "Generated modern reading aid; not an original Steinmetz figure."
    },
    {
      "id": "transient-condenser-response-redraw-sheet",
      "title": "Transient Condenser Response Redraw Sheet",
      "subtitle": "Modern redraw sheet for logarithmic charge, critical damping, oscillatory charge, and decrement.",
      "file": "transient-condenser-response-redraw-sheet.svg",
      "source_path": "diagrams/recreated/transient-condenser-response-redraw-sheet.svg",
      "public_path": "/diagrams/transient-condenser-response-redraw-sheet.svg",
      "public_url": "/diagrams/transient-condenser-response-redraw-sheet.svg",
      "sources": [
        "theory-calculation-transient-electric-phenomena-oscillations",
        "elementary-lectures-electric-discharges-waves-impulses",
        "electric-discharges-waves-impulses-1914"
      ],
      "concepts": [
        "transient-phenomena",
        "oscillation-damping",
        "capacity",
        "condenser"
      ],
      "status": "modern-recreated-guide-diagram",
      "quality_note": "Generated modern reading aid; not an original Steinmetz figure."
    },
    {
      "id": "phasor-symbolic-method",
      "title": "Phasor And Symbolic Method",
      "subtitle": "Modern reading aid for vector and complex-number representation of alternating quantities.",
      "file": "phasor-symbolic-method.svg",
      "source_path": "diagrams/recreated/phasor-symbolic-method.svg",
      "public_path": "/diagrams/phasor-symbolic-method.svg",
      "public_url": "/diagrams/phasor-symbolic-method.svg",
      "sources": [
        "theory-calculation-alternating-current-phenomena",
        "theory-calculation-alternating-current-phenomena-1897",
        "theory-calculation-alternating-current-phenomena-1900",
        "engineering-mathematics"
      ],
      "concepts": [
        "symbolic-method",
        "complex-quantities",
        "phase",
        "phasor"
      ],
      "status": "modern-recreated-guide-diagram",
      "quality_note": "Generated modern reading aid; not an original Steinmetz figure."
    },
    {
      "id": "transient-decay-oscillation",
      "title": "Transient Decay And Oscillation",
      "subtitle": "Modern guide for permanent terms, temporary terms, decay, and oscillatory readjustment.",
      "file": "transient-decay-oscillation.svg",
      "source_path": "diagrams/recreated/transient-decay-oscillation.svg",
      "public_path": "/diagrams/transient-decay-oscillation.svg",
      "public_url": "/diagrams/transient-decay-oscillation.svg",
      "sources": [
        "theory-calculation-transient-electric-phenomena-oscillations",
        "elementary-lectures-electric-discharges-waves-impulses",
        "electric-discharges-waves-impulses-1914"
      ],
      "concepts": [
        "transient-phenomena",
        "oscillation-damping",
        "damping",
        "stored-energy"
      ],
      "status": "modern-recreated-guide-diagram",
      "quality_note": "Generated modern reading aid; not an original Steinmetz figure."
    },
    {
      "id": "hysteresis-loop",
      "title": "Hysteresis Loop",
      "subtitle": "Modern guide for magnetic lag, loop area, and energy loss per cycle.",
      "file": "hysteresis-loop.svg",
      "source_path": "diagrams/recreated/hysteresis-loop.svg",
      "public_path": "/diagrams/hysteresis-loop.svg",
      "public_url": "/diagrams/hysteresis-loop.svg",
      "sources": [
        "theoretical-elements-electrical-engineering",
        "theory-calculation-alternating-current-phenomena",
        "theory-calculation-electric-apparatus",
        "engineering-mathematics"
      ],
      "concepts": [
        "hysteresis",
        "magnetism",
        "magnetic-loss",
        "effective-resistance"
      ],
      "status": "modern-recreated-guide-diagram",
      "quality_note": "Generated modern reading aid; not an original Steinmetz figure."
    },
    {
      "id": "field-wave-line",
      "title": "Field Wave Line",
      "subtitle": "Modern reading aid for distributed constants, standing waves, traveling waves, and surge propagation.",
      "file": "field-wave-line.svg",
      "source_path": "diagrams/recreated/field-wave-line.svg",
      "public_path": "/diagrams/field-wave-line.svg",
      "public_url": "/diagrams/field-wave-line.svg",
      "sources": [
        "theory-calculation-transient-electric-phenomena-oscillations",
        "elementary-lectures-electric-discharges-waves-impulses",
        "electric-discharges-waves-impulses-1914",
        "theory-calculation-electric-circuits"
      ],
      "concepts": [
        "electric-waves",
        "distributed-constants",
        "traveling-wave",
        "lightning-surges"
      ],
      "status": "modern-recreated-guide-diagram",
      "quality_note": "Generated modern reading aid; not an original Steinmetz figure."
    },
    {
      "id": "impedance-reactance-triangle",
      "title": "Impedance And Reactance Triangle",
      "subtitle": "Modern guide for resistance, reactance, impedance, phase angle, and symbolic quantities.",
      "file": "impedance-reactance-triangle.svg",
      "source_path": "diagrams/recreated/impedance-reactance-triangle.svg",
      "public_path": "/diagrams/impedance-reactance-triangle.svg",
      "public_url": "/diagrams/impedance-reactance-triangle.svg",
      "sources": [
        "theory-calculation-alternating-current-phenomena",
        "theory-calculation-alternating-current-phenomena-1897",
        "theory-calculation-alternating-current-phenomena-1900",
        "theory-calculation-electric-circuits"
      ],
      "concepts": [
        "impedance",
        "reactance",
        "power-factor",
        "symbolic-method"
      ],
      "status": "modern-recreated-guide-diagram",
      "quality_note": "Generated modern reading aid; not an original Steinmetz figure."
    },
    {
      "id": "illumination-inverse-square",
      "title": "Illumination Inverse-Square Geometry",
      "subtitle": "Modern guide for the practical bridge from radiation to visual illumination and light distribution.",
      "file": "illumination-inverse-square.svg",
      "source_path": "diagrams/recreated/illumination-inverse-square.svg",
      "public_path": "/diagrams/illumination-inverse-square.svg",
      "public_url": "/diagrams/illumination-inverse-square.svg",
      "sources": [
        "radiation-light-and-illumination"
      ],
      "concepts": [
        "illumination",
        "radiation",
        "light-flux",
        "inverse-square"
      ],
      "status": "modern-recreated-guide-diagram",
      "quality_note": "Generated modern reading aid; not an original Steinmetz figure."
    },
    {
      "id": "commonwealth-edison-system-reactor-map",
      "title": "Commonwealth Edison System Reactor Map",
      "subtitle": "Modern reading aid for station sections, power-limiting reactors, tie cables, and synchronism.",
      "file": "commonwealth-edison-system-reactor-map.svg",
      "source_path": "diagrams/recreated/commonwealth-edison-system-reactor-map.svg",
      "public_path": "/diagrams/commonwealth-edison-system-reactor-map.svg",
      "public_url": "/diagrams/commonwealth-edison-system-reactor-map.svg",
      "sources": [
        "commonwealth-edison-generating-system-trouble",
        "theory-calculation-electric-circuits"
      ],
      "concepts": [
        "power-limiting-reactors",
        "synchronizing-power",
        "reactance",
        "power-systems"
      ],
      "status": "modern-recreated-guide-diagram",
      "quality_note": "Generated modern reading aid; not an original Steinmetz figure."
    }
  ]
}