Complex sentence: Tung-Sol was a privately held company and was run like a laboratory this gave Tung Sol vacuum tubes a reputation of having some of the best metallurgy and chemistry that has ever been pulled off in actual production.
Split into simpler sentences: Tung-Sol was a privately held company and was run like a laboratory. This gave Tung Sol vacuum tubes a reputation of having some of the best metallurgy and chemistry that has ever been pulled off in actual production.