Valve Tester MKII Expansion Module B GZ34

This Orange Amps Valve Tester expansion module B expands the functionality of your Orange Valve Tester MKII by enabling it to test GZ34 rectifier valves. The GZ34 is a popular tube rectifier known for its use in vintage and modern guitar amplifiers. Ensure the health and performance of your GZ34 valves with this convenient expansion module.