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Mullard M8136/12au7 Box plates England
Mullard KT88 Russia
Mullard 12ax7/CV4004 Short Plates Russia
Deciphering European tube date codes
A lot of questions have been asked about when a tube is made, so here you go, a quick guide on how to decipher the date codes.
For the most European tubes made after 1955 date codes are located on the bottom of a sidewall of a tube (not always the case)
In this case, it’s B0D (this is for Mullard, Blackburn – 1960 – April)
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“I consider them an excellent sounding tube and a close match to the NOS Sylvania.” Read
Continue readingTubes with Black and Gray plates
There is a lot of discussion about Black vs Gray plates tubes. Some people believe that claim that black plates sound better is just a myth created by tube vendors to increase prices, some people swear by black plates in their systems.
So what’s true and what’s not.
Boonton 102A/Type 45 Black Plates
Telefunken ECC803S Germany
“ecc803s was not magical at all, it sound like great solid state without and sign of 50s euro tubes typical bloom” Read
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