I probably paid too much for this Protek 506, but it took my fancy.
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Protek 506 review.
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Protek506/Protek506/src/com/dariancabot/protek506/Protek506.java at master · dariancabot/Protek506 · GitHub
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RETRO-TECH PROTEK 506 Vintage Multimeter Mini Review & Teardown (1995) - YouTube
