Category:Heathkit vacuum tube testers

Media in category "Heathkit vacuum tube testers"

The following 2 files are in this category, out of 2 total.

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  HeathKit tube tester TC1 in case.agr.jpg 2,700 × 2,336; 1.44 MB
  
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  HeathKit tube tester TC1.agr.jpg 3,024 × 3,024; 1.43 MB