Home » Audio » Thermionic Emissions » Fivre 6SL7 tube - sound profile / recommendation / comparisons(... some new questions have shown up in regards to a pair of NOS 6SL7GT tubes from the Italian producer Fivre I've come across.)
gofar99 Messages: 1939 Registered: May 2010 Location: Southern Arizona
Illuminati (5th Degree)
Hi I have not heard any of them so it may be interesting to see if anyone has some thoughts on them. I like to use NOS National Union and Sylvania made for the US Navy in the 1943-46 year range. My preferance is for the 12 volt versions as they lend themselves to my designs easier though.