Does your VTL amp use 6550 or 6550C? I understand the 6550C is designed to take more voltage than other type of 6550. Did VTL say it is okay to use other than "C"s ?
Has anyone used the Electro Harmonix 6550 tubes ?
I currently have the Svetlana 6550 's in my VTL & think they are great . Someone suggested the EH 6550's and said they are the best 6550's . What do you guys think ? Thanks!