Can you PM me photos and test results pleaseI have a pair of NOS Mullard M8162. They have been tested on a Hickok 539c and have close values. I see Langrex has matched pairs of these for £60, which looks fair
Tube amplifierWhat equipment will be using them?
I have had not much luck with them , bought 2 pairs of valves lately and both have been returned as weren’t matchedI see Langrex has matched pairs