AudioRoundTable.com - RDF feed
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description: Audio advice and discussions with audiophiles and professionals. Free discussion forums, open to all and frequented by industry experts. Ask questions and get advice on stereos, speakers, hi-end amplifiers, pre-amps, home theater, tube hi-fi, turntables, vinyl, tweaks, music, films, video, DVDs and more.
items: Fivre 6SL7 tube - sound profile / recommendation / comparisons
items: Re: Fivre 6SL7 tube - sound profile / recommendation / comparisons

Fivre 6SL7 tube - sound profile / recommendation / comparisons
type: item
description: Clever people, Inspired by the excellent feedback (e.g. on the E80 CC tube having quite different specs from the ECC82) the I got in this thread: https://audioroundtable.com/forum/index.php?t=msg&th=23320&goto=94872& and general recommendations for ECC82 tubes he: https://audioroundtable.com/forum/index.php?t=msg&th=23320&goto=94872& some new questions have shown up in regards to a pair of NOS 6SL7GT tubes from the Italian producer Fivre I've come across. They're close to perfectly symmetrical, which I'm fond of, both across tubes & triodes, picked from Hungarian military stock. I've tried learning more about Fivre's sound profile / characteristics, but information is sparse (especially in comparison to the usual suspects from Telefunken, Mullard, RCA, Sylvania, Siemens, Amperex, TungSol, etc.). So I'm hoping to find some valuable insights / information here. They'd be used in the preamp stage of my Audio Note P2SE amplifier. Thanks in advance, Kasper Begholt
creator: kasperbergholt
date: 2022-07-13T08:11:15-00:00

Re: Fivre 6SL7 tube - sound profile / recommendation / comparisons
type: item
description: 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.
creator: gofar99
date: 2022-07-14T02:16:50-00:00

Re: Fivre 6SL7 tube - sound profile / recommendation / comparisons
type: item
description: gofar99 wrote on Wed, 13 July 2022 21:16 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. Thank you for the reply. NOS Sylvania tubes seem popular. These are from 44-45 https://www.ebay.co.uk/itm/174954323484?hash=item28bc171e1c:g:qToAAOSwW61hUHxb Might be worth a try
creator: kasperbergholt
date: 2022-07-14T14:47:37-00:00