Guest psihotronic Posted October 5, 2010 Share Posted October 5, 2010 salut! as vrea sa stiu cand trebuie sa schimb tubul din preamp:care ar fi primele semne de uzura. tubul actual are vo 4 ani. nu stiu cat a fost folosit inainte,eu am ampul de 2 saptamani.[second] as vrea sa mai stiu in ce fel poate afecta sunetul un alt tub de alta firma[tot 12ax7/ecc83]. Link to comment Share on other sites More sharing options...
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