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2026-10-09
- 170 new manuals added in aes, alinco, bitsavers, b&k, century, collins, dovetron, ebooks, eico, electric-eye, freq-electronics, goodwill, hickok, johnson, kantronics, micronta, military, national, rca, scientific_radio, sencore, sylvania, tennelec, triplett, uniden, and xyz.
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2026-10-21
- New beta site for public review.
107
readme
Tube data cards for the SECO model 107 tube tester. Compliments of Ron Shaw. KC0DKI. seco-107-troubleshooting-chart.jpg: I ran across the page in my grandfathers seco 107 tube tester, which years ago inspired me to start playing with tube electronics. I'd like to submit it in hopes that it may help others with the same tester.
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Viewers
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- Sumatra PDF (Windows)
- DjView (DjVu)
- WinDjView (Windows, DjVu)
- Adobe Acrobat Reader (PDF)