Orange Amplifiers Valve Tester MKII Expansion Module C - EF86

This the Orange Valve Tester MKII Expansion Module C allows you to test EF86 pentode valves using your Orange Valve Tester MKII. The EF86 is a popular preamp tube known for its high gain and clear tone, often used in guitar amplifiers and Hi-Fi equipment. This module ensures you can accurately assess the condition of your EF86 valves.