Issue 1 September 2026
Available now – Free PDF sent on request (see above)
- Build OTTO: A PDP-8 Replica
- Collins KWM-2 — The Revolt of the Tone Oscillator
- Vacuum Tube Testers
- They Keep Exploding — RIFA capacitors

Quacktech Quarterly — Qua-Qua — is a free independent digital magazine devoted to Technical Art.
It explores instruments, computers, radio equipment, circuits, components and machines not simply as old technology, but as the visible result of engineering, creativity, ingenuity and human effort.
Qua-Qua combines technical analysis with history, restoration, measurements, photographs, schematics and real experience. Its aim is to document and explain the ideas behind technology, and to preserve knowledge that might otherwise become difficult to find or simply disappear.
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