Valves. Brimar Mazda ECC83 grey ladders plates NOS 1962-1972

Excuse my bad English. You wrote about brimar valves generally. Does anybody know exactly THIS valves? 🙂

Brimar fuse looks rather interesting, too. Silver, gold, cryo, Quantum something or another.

The Brimar ECC 83 is the same type of tube as any other brand ECC 83.   The American designation for this tube is 12AX7.

Brimars are good tubes but it is not possible to say how it will sound in your system.  lowrider57's description is about as close as we can get.

Sorry to divert from your specific question, but I am trying to imagine where you would use a 12AX7/ECC83 in a CD player. Typically, CDPs that use tubes, use them in a capacity that would not be well suited to an ECC83.  Are you trying to replace "like with like", or are you experimenting with changing the tube type, as well as the tube brand? If you would divulge the name of your CDP, that would help.  Thanks.

Thanks a lot for the answers. The name of the Cdp is Lua Appassionato, famous player and H Lua is an authority and I m not afraid that he could do wrong things. Last year he used Mullard Ecc83 valves,  now for the actual upgrade he use the Brimar Mazda grey plate valves.

background of my question is a Test from watford valves, Derek Rocco. He Tested many valves, also the Brimar cv4004 and the Mazda greyplates, and that seems to be valves with a different sound. So there seem to be differences between Birmar valves and that is the reason I asked for the sound of theMazda ecc83 greyplates. Does anybody know this valves?