1X Rare New in Box 12AU7A Tube Mullard Blackburn Philips Label gf2 B104 Tested 100%     

                    Tested very Good with results of 2300/2400 when the minimum working is 1385/1385 

                      and maximum for new is 2200/2200 on my Stark 9-66  tube tester .

                         

                              Also tested with my old Garnet Tube Amp. with a good vintage sound.

                 

                                   Shipping is $18 for Canada , $15 for USA and $25 for others countries.