This is a fully tested kit containing two ECC83S ( 12AX7) and two 6V6S’s. We test every valve we sell and one of the ECC83S and the 6V6Ss will be hand matched. We supply a test certificate showing the matching test results. Valves are manufactured by JJ Electronic in Slovakia
"Prompt delivery, boxed and secure, included a tip sheet and a handwritten thank you. All valve sellers should be like this. Highly recommended." - Steven L.
"I don’t think I’m the only guitarist out there who knows his/her guitars, but very little about tube amps. I ordered a Supro valve kit (which is great), but it’s the service, help & advice I received from Stewart that was outstanding. I was going to say ‘these guys’, but it didn’t seem right, as my communication was just with him. Thank you!" - Robert G.