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AI-Assisted Circuit Archaeology: Iterative Prompt Engineering for the Historiography and Reproduction of Rare Vintage Serge Paperface Synthesiser Hardware

Activity: Talk or presentation › Invited talk

Description

The Serge Paperface modular synthesiser (1973–1975), developed by Serge Tcherepnin in the DIY spirit of early West Coast electronic music, represents a pivotal yet under documented chapter in experimental instrument history. Built in small numbers with hand assembled circuits and printable “paperface” panels, these instruments reflect the era’s do it yourself approach to synthesiser design.
Primary technical documentation of these early systems is both scarce and highly fragmented and consist largely of incomplete schematics and photographs of front panel graphics with PCB designs which exist mainly as sporadic and low-resolution photographic evidence scattered across blogs, forums, auction listings, and fragile online archives.
Accurate details of these artefacts are rapidly disappearing from public view. While many original systems remain in private collections, the accompanying public documentation, personal websites, and early digital archives, are gradually vanishing or becoming only partially accessible. Most surviving documentation exists through irregular captures in the Internet Archive’s Wayback Machine or scattered web sources. This fragile state makes the systematic collation of material from
these disparate sources essential. We forward the need for concerted effort and consolidation within a coherent historiographic framework. Only through such consolidation effort can these details be preserved and made available for future scholarship, reproduction, and creative practice.
While recent reissues of these vintage designs in revised form exist (notably Random*Source Paperface 50, Low-Gain Electronics, and Prism Circuits) they feature updated layouts and undocumented part substitutions to meet modern standards. These sources, then, offer only partial value for historical accuracy. This highlights the urgent need for faithful documentation of the original 1973–1975 designs.
This study collates distributed evidence sources introduces a novel methodology to address the challenges and demonstates a methodology supported by multimodal AI image processing techniques and iterative prompt engineering to speed reverse engineering of key features, such as PCB traces, circuit diagrams, component
values, and accurate front panel designs from largely photographic evidence.
We outline a multi stage prompting sequence for PCBs including wire/component removal (while preserving logical connections), conversion to clean black and white trace artwork, and peripheral refinement/testing. A parallel workflow explores backwards engineering to achieve faithful reproduction of accurate front panel graphics.
As proof of concept, these techniques were applied to the Triple Comparator module (Serge R11 1973). Validation combined physical trace testing with cross referencing against available schematics, enabling a bidirectional verification loop that accounts for period specific variations.
By accurately documenting and consolidating access to these rare artefacts, this AI assisted approach enhances scholarly preservation and potential for future reproduction and study of these rare devices. It explores broad concepts human assisted technical design and reconstruction while advancing responsible stewardship of electronic music legacies and highlighting the broader potential of emerging technologies for cultural heritage.
Period11 Sept 2026
Held atUniversity of West London, United Kingdom
Degree of RecognitionInternational

Keywords

  • Synthesis
  • archaeology
  • history
  • Engineering