This VT56 valve kit contains four ECC83S’s ( 12AX7) and two 6L6GC’s. Valves are JJ Electronic, made in Slovakia. We use our SUPERMATCH process to match one of the the ECC83S’s and the 6L6GCs. We supply a test certificate showing the matching test results. The hand matched ECC83S should be placed in the phase splitter position next to the 6L6GC output valves.
We test your valves on our suite of AVO testers