I have the HEXFRED and no tube rectifier so there are more amps available.
Wonder if the GOTL with a rectifier sounds much different than a GOTL with a solid state Hexfred rectifier.....
How variable are the 6BL7 tube makes? I am still intrigued by any other outputs (I can't escape the Bendix 6080s, but it must only be because I don't have other options that are as good). Several folks who have many nice output tube options (top 6AS7Gs, etc) still like the 6BX7/6BL7s too. I have one set of pretty, perfectly matched, more modern (1980s) GE 6BL7s. They are OK, but I haven't found a setup where I prefer them to alternatives. I am curious how different another make/era would be. I had the impression (probably falsely) that there was less variance in brand across these valves.
When it comes to the 6BX/BL7 tubes the older Sylvania parallel plates are supposed to be the best sounding, but they are hard to come by, especially a matched set of six. Even so, I personally did not find huge differences between brands.
That said, I did not find the sextet of 6BX/BL7 tubes to my liking, and much prefer the Bendix 6080 WB.
However, a number of people really like the sextet setup; maybe it is connected to individual equipment, synergy with other tubes, or individual preferences.
i have many sets of 6x 6BX7 / 6BL7 ... the Sylvania GT flat plates are the only ones i LOVE. Took me ages, slowly buying singles and a lucked in on a nice pair to finally have a nice set.
I had them in for months over my WE421A, TS5998, GEC 6AS7G, Bendix 6080, GEC 6080.
Driver match - Sylvania 6SN7W metal base, Mullard ECC32, GEC 6J5G x2. Both GEC U52 and WE422A rectifiers sound great with the sextet sylvania flat plates and these drivers. headphones that sounded great on GOTL with these tubes - verite, HE1000SE, HD800S, LCD-3, HD6xx
they are in again now, so let's see if i stave off the tube rollers itch haha
Thanks. The last couple of years every time I had some money to upgrade my cans, I ended up spending it on tubes or an amp.
I am going to add a closed dynamic headphone also, then I will just enjoy my music until the next itch needs scratched...
I have had these Visseaux 6J7MG for a bit now and now I can give them a go. I think there is an old post w/ @L0rdGwyn the same/similar tubes. I have just put them in with the other L63 I have in at the moment. On sacrificial headphones presently. They say Visseaux, license Sylvania on the box. Does this mean they manufactured a Sylvania design or that they are basically Sylvania tubes rebranded?
On another note, I had these EL11s in my cupboard, from a Feliks Euforia I had (briefly). I went to put those in 1st but the 6J5 adapter and the EL11 adapter are too big to cohabitate the amp. I'll need to put in a 6N7G or just the EL11s alone. They aren't visually well matched and if the #s on the front are date codes, they are not date matched either. Interested to see how they go too.
If anyone is looking for one of these without the high price tag...
FIVRE 6N7G $18 plus postage $15. 1942 tax stamp. German seller with 32K reviews and 99% positive.
Might be worth the gamble.
If anyone is looking for one of these without the high price tag...
FIVRE 6N7G $18 plus postage $15. 1942 tax stamp. German seller with 32K reviews and 99% positive.
Might be worth the gamble.
They say Visseaux, license Sylvania on the box. Does this mean they manufactured a Sylvania design or that they are basically Sylvania tubes rebranded?
This means that Visseaux manufactured the tubes while paying patent licensing fees to Sylvania for use of their patents. You will find other Visseaux branded tubes that have similar construction to Sylvanias for this reason, they seem to have had a relationship. For instance, the 6A5G used in one of my amplifiers was designed by Sylvania in the USA. The only other manufacturer was Visseaux, so I suspected they were made under Sylvania license (although they got part of the design wrong and made them DHT rather than IDHT). Thanks for confirming
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