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May 15, 2025
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Orange Valve Tester MKII Expansion Module
Hot-rod your already awesome Valve Tester MKII with an expansion module. This a la carte option allows you to choose just the single tube type you need.
Valuable tools for any tube aficionado, Orange valve testers save you time and money by determining the quality of tubes for guitar amps, mic preamps, and more. Call our Gear Experts now for help with your purchase: 800-460-8089.