My experience is that the EH is a step up from the Svetlana, but I think the best 6550 is the Tung-Sol. A close second is the SED winged C.
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!