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Lineage

The circuits that made electric guitar did not appear in isolation — they descend from one another. This is the corpus as a family tree: every model placed on an era axis within its line, a succession line tracing each family's revisions, and a derivation arrow drawn wherever one circuit's redrawn schematic is a documented derivation of another in a different family. 49 models across 8 lines, 10 with a documented circuit. Hover a lane to isolate it; click a solid chip for its circuit, an outline chip for its family history.

1945 1950 1955 1960 1965 1970 1975 1980 ◂ era introduced · bar spans production years ▸ champ 800 4 W 5B1 4 W 5C1 4 W 5D1 4 W 5E1 ✓ 5 W 5F1 ✓ 5 W AA764 5 W princeton woodie — 5B2 5 W 5C2 5 W 5D2 5 W 5E2 5 W 5F2 5 W 5F2-A 5 W 6G2 12 W AA964 12 W AA1164 12 W harvard 5F10 ✓ 10 W 6G10 5 W deluxe Model 26 — 5A3 — 5B3 — 5C3 — 5D3 — 5E3 ✓ 15 W 6G3 15 W AA763 22 W deluxe-reverb AA763 22 W AB763 ✓ 22 W super Dual Professional — 5B4 — 5C4 — 5D4 — 5E4 — 5F4 ✓ 26 W 6G4 40 W bassman 5B6 26 W 5D6 40 W 5E6 40 W 5F6 45 W 5F6-A ✓ 40 W 6G6 50 W AA864 50 W AB165 50 W marshall-lead JTM45 ✓ 45 W JTM100 100 W 1959 100 W JTM50 50 W M1987 50 W 5881→KT66
Documented circuit — links its page History-tier model — links its family history Succession within a family Documented derivation between families
Two connectors, two claims. A succession line joins the models inside one family in date order — it records the chain of revisions that carried the line's name, not that each step is a documented derivation of the last. An arrow is drawn only where an amp's own metadata records a derivation across family lines — here, the tweed 5F6-A Bassman to the Marshall JTM45 that copied it; its caption reads the change in power tubes and rectifier straight from each circuit's data. Within-family documented derivations (the 5E1 Champ to the 5F1, the JTM45 to the model 1987) are carried by the succession line rather than double-drawn as arrows. Outline chips are history-tier models — placed and sourced, their circuits not yet drawn — so each family reads as a complete chain even where only one or two circuits are documented; the gaps are honest, and an outline chip becomes solid when its circuit lands.