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Bottlehead crack w/speedball
Bottlehead crack w/speedball








bottlehead crack w/speedball bottlehead crack w/speedball

The listening was conducted with a 5998 to maximise the input tube's abilities, and HD800 to hear every detail available. I then compared them to a pair of Mullard 6J5GT tubes. Their market price is above and beyond what I'd be willing to pay for these mini guys, so I am super thankful I get to test them out! Other tubes were the Telefunken smooth plate ECC82, Hivac smooth welded plate CV491, and a regular Mullard Blackburn Gf1 (1963) ECC82. I was recently loaned an Amperex 7316, generously by a fellow BHC owner on another forum. Inspired by some recent posts here and on the 6J5 thread, I decided to do a mini shoot-out of the 'top' 12AU7/ECC82s.










Bottlehead crack w/speedball