Heathkit EC-1

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Volumes

1. Vol 1 Heathkit EC-1 — Volume 1 — Overview & history Context, specifications, and physical orientation that ground Volumes 2–8
2. Vol 2 Heathkit EC-1 — Volume 2 — Hardware & theory of operation Power supply architecture, 6U8-based op-amp topology, nine amplifier modules, metering and control circuitry, and stage-by-stage schematic walk — grounding all later volumes in measured hardware reality
3. Vol 3 Heathkit EC-1 — Volume 3 — Patch panel & computing elements Signal routing, op-amp configurations, and computing element reference — bridging Vol 2 power/hardware to Vol 4 problem scaling
4. Vol 4 Heathkit EC-1 — Volume 4 — Acquisition & restoration How to find, evaluate, strip, recap, retube, and bring up a working EC-1 — prerequisites for Vol 5 (programming) and Vol 6 (advanced demos)
5. Vol 5 Heathkit EC-1 — Volume 5 — Programming the EC-1 Scaling, patching, and reading results — the complete workflow for turning differential equations into wired solutions
6. Vol 6 Heathkit EC-1 — Volume 6 — Sample programs & demonstrations Six fully worked analog programs with scaling derivations, patch diagrams, and coefficient tables — cross-referenced to Vol 2 (circuits), Vol 3 (calibration), and Vol 4 (programming theory)
7. Vol 7 Heathkit EC-1 — Volume 7 — Modern extensions & interfacing Solid-state substitution, data-logging, bench-supply alternatives, patch hardware, and reversibility discipline — bridging 1959 silicon-free design to modern instrumentation
8. Vol 8 Heathkit EC-1 — Volume 8 — Cheatsheet (field-grade) Quick-reference card set distilling Vols 1–7: tube map, jack/pot map, scaling formulas, patch symbols, power-up sequence, recap checklist, triage tree, and high-voltage safety card