How to identify unmarked vacuum tubes (European)
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Tube Lab #14 Getters
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Why Don’t Railroads Need Expansion Joints?
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Brymen BM2257 unboxing, review and teardown
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Working on a reel-to-reel machine for the first time ever - Philips N4308 - Part 1
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Restoring the electronics of a vintage shoebox cassette recorder - ITT SL54 Automatic - Part 2
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Le monde dépend d’un langage informatique que plus personne ne connaît
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Tube Lab #12 How to Identify Tubes Made in North America
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