![]() ![]() I have been in contact with Carvin and the tech suggested replacing all of the pre-amp tube sockets. I re-soldered all pre-amp tube sockets with no change. I used contact cleaner on all tube sockets, and send and return jacks. I opened the amp up and it's spotless inside. Removing V3 or V5 eliminates the noise, with diminished output of course. Plugging anything into the send or return removes the noise. I am pretty sure the problem is in the pre-amp section because plugging into the effects loop from another amp eliminated the noise and the amp works as it should. The noise is present with or without a guitar connected to the input. The amp developed a loud static noise so the owner replaced all of the valves with no change. The amp is all tube with 5 12ax7s and 4 E元4s or 6l6 power tubes. I am not a professional amp tech, but I do know the basics. I'm working on an amp for a friend and I'm hoping to get some guidance. I am pretty sure the attached schematic is for the head version of the amp which is the same as the combo. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |