Mullard Osram NOS 2 x CV1071 rectifier U52 5U4 CV575 KB/T High Test matched BEST

For your consideration I have a superb rare pair new old stock CV1071 military grade rectifier valves made in England at the Blackburn factory - these test above new specs on my AVO VCM163 tester - superb for your vintage mono blocks or stereo amplifier - if you want your amp to sing then these are a must :. My photo's show good detail - good luck. AVO VCM163 new = 60/60 on each plate. Please note : All electrical goods must be inspected/checked by a licenced electrical technician before any voltage is applied.