Wei-i Li
The Archivist
Every technical community generates far more knowledge than it manages to preserve. Conversations happen, problems are solved, solutions are shared — and then the thread scrolls off the page and the answer that took three experts a week to work out becomes practically unreachable, buried in a mailing list archive that nobody knows how to search effectively. The R-390A community has been luckier than most, and the reason has a name: Wei-i Li.
For many years, Wei-i Li has been reading the R-390/R-390A mailing list not just as a participant but as a collector and curator — tracking the flow of technical wisdom, identifying what was genuinely useful, categorising it by topic, and compiling it into the archive that lives at r390a.net as the Pearls of Wisdom collection. It is, without exaggeration, the single most important reference resource the community has produced.
What the Pearls Are
The Pearls of Wisdom is a collection of over thirty topically organised PDF documents, each one a compiled and categorised digest of mailing list posts on a specific technical subject. The topics span the full breadth of R-390A ownership and restoration:
AC and line safety. Antennas. Audio deck. Ballast tube. Capacitors. Dead unit inspection and recovery. History. IF deck alignment. IF deck filters. Modifications and field changes. Panel meters. Panadaptors. Painting and knobs. PTO. Power supply. R-392 and R-648 notes. Racks and cases. Resistors. General restoration. RF deck — both electrical and mechanical. Sensitivity and alignment. SSB conversion. Storage and shipping. Test equipment. Tubes and tube testers. Tube shield heating. R-390 (non-A) and R-391 notes.
Each document draws from real reflector discussions — the accumulated experience of hundreds of operators, restorers, and engineers who worked through actual problems on actual receivers. Wei-i Li read those discussions, recognised their value, extracted what mattered, and organised it so that anyone facing a specific problem could find the relevant expertise without having to know who had posted what and when. The Pearls index was last revised in May 2023, confirming that this is not a historical project that was completed and abandoned — it is a living archive, still maintained.
The Scale of the Contribution
It is difficult to communicate what this archive means to someone who discovers it for the first time. Every other piece of community documentation — the Y2K Technical Reference, Chuck Rippel’s restoration guides, the FAQ pages — benefits from existing alongside the Pearls because together they form a complete reference ecosystem. But the Pearls are uniquely valuable because they capture the community thinking through problems in real time, not just the settled conclusions. You can read Dr. Gerald Johnson working through a ballast tube substitution calculation. You can read the thread where the C-553 capacitor failure mode was first properly diagnosed. You can read five people simultaneously troubleshooting the same IF oscillation problem until one of them finds the answer.
That kind of knowledge does not survive in any other form. It is not in the military manuals. It is not in Electric Radio. It exists because Wei-i Li decided it should exist and then did the work, consistently, over many years, to make it so.
Every tribute in this Boatanchor Legends series has drawn on the Pearls. The discussions of Dr. Johnson’s ballast tube analysis, of Jan Skirrow’s RF module work, of Chuck Rippel’s restoration philosophy, of Dallas Lankford’s AGC modifications — all of it is accessible because Wei-i Li compiled it. He is, in a very real sense, the hidden foundation of the entire documentation stack.
Recognition Overdue
Wei-i Li’s biographical details have not circulated in the community the way those of other contributors have. No callsign is widely associated with his name in the public record. No professional background has been shared on the reflector. What is known is exactly what matters: he cared enough about this community’s knowledge to spend years collecting and preserving it, and he has continued to do so long after the initial effort would have been enough.
The Pearls page lists one contributor: Wei-i Li. That sole credit is accurate and, in this case, entirely appropriate. The work is his.
Mike Peace VK6ADA / r390a.net Administrator