This 4x ECC83S 2x EL84 Valve kit has valves are from JJ Electronics , made in Slovakia. We use our Supermatch process to match one of the ECC83’s and the EL84’s. We supply a test certificate showing the matching test results. We test and match your valves at real voltages as found in most amps.
This kit is used for example in Marshall DSL201 amps
We test every valve on our suite of AVO testers to ensure top quality.
We offer a 180 day warranty – mis-use excepted. Prices include VAT for UK/EU and first class post is free in the UK