Quantify the difference between Holland Amperex e188cc/7308 and USA Amperex 7308/e188cc?


Heerlen made e188cc Amperex  versus Hicksville made 7308 Amperex ...  How do they differ in sound character?
pmboyd
Andy at Vintage Tube Services... dude is amazing but call him, e-mail is digital....
I consulted all the readily available and popular sources. Looking for user experience, especially comparing and contrasting these specific flavors.
Post removed