[triod750]

Why not? It seems to have a black foreground....

 

[OldSkool]

Good thing for burn-in. The NOS GEC L63 upper treble is starting to mellow at 20 hours. Treble is now down to 6J5G Visseaux territory but with more detail. Nice!

 

[jonathan c]

Good thing for burn-in. The NOS GEC L63 upper treble is starting to mellow at 20 hours. Treble is now down to 6J5G Visseaux territory but with more detail. Nice!

I really enjoy the double GEC L63 via @Deyan adapter on the Schiit Lyr 3. I will not be returning to 6SN7s for Lyr.

 

[Slade01]

I really enjoy the double GEC L63 via @Deyan adapter on the Schiit Lyr 3. I will not be returning to 6SN7s for Lyr.

This! Dual Single Triodes trump nearly 99% of 6SN7s any day of the week. I'll stand by that pepsi challenge.

 

[bcowen]

I really enjoy the double GEC L63 via @Deyan adapter on the Schiit Lyr 3. I will not be returning to 6SN7s for Lyr.

They sound pretty good n the Incubus too.

 

[pravous]

I think these would be perfect if one had a sideways amp. Hytron e-1148.

Horizontal internals.

 

[jonathan c]

I think these would be perfect if one had a sideways amp. Hytron e-1148.

Horizontal internals.

Don’t give @bcowen ideas! He has a sideways Incubus (in)Elegans which was built by @Paladin79 …

 

[bcowen]

Don’t give @bcowen ideas! He has a sideways Incubus (in)Elegans which was built by @Paladin79 …

LOL! We may have to reclassify my Incubus as a 90-degree amp.

 

[maxpudding]

Or a perpendicular amp

 

[jonathan c]

LOL! We may have to reclassify my Incubus as a 90-degree amp.

Make it seem sophisticated…call the Incubus ‘orthogonal’………

 

[jonathan c]

LOL! We may have to reclassify my Incubus as a 90-degree amp.

Second response: classify it as the world’s only ‘electrically in-phase, structurally half out-phase amp’.

 

[bcowen]

Make it seem sophisticated…call the Incubus ‘orthogonal’………

Problem is that *my* Incubus is correctly oriented. @Paladin79 just built all the other ones sideways 90-degrees.

 

[jonathan c]

Problem is that *my* Incubus is correctly oriented. @Paladin79 just built all the other ones sideways 90-degrees.

…the Copernicus Incubus…? around which all others orbit?……

 

[jgwtriode]

Well I really must say I thoroughly enjoy my GEC l63's in my Airmid, but I don't have any other experience with 6J5's so figured I would try to inform myself a
bit more.

Happy listening,

jgwtriode

 

[les24preludes]

I've been doing a shootout of my 28 6SN7s and the plate/anode construction is basically these:
1. T plates, early 6SN7GT
2. ladder plates, many types
3. angled plates
4. round plates e.g. Brimar

The best sounding ones are the T plates, which are mellow, the angled plates which are a tad brighter but still smooth, and the Brimars. I found the ladder plates a tad edgy and hollow, especially on orchestral strings which were smooth with the T plates in particular.

I'm about to make a rig to try out 6J5 types - I have a couple of 6J5G round plates and several 7193/2C22, all of which are ladder plates. I remember from many years ago that the 7193s sounded pretty good, so I was surprised to see they are ladder plates. Maybe the top caps help.

Anyway, looking to buy a few more 6J5 types so looking for recommendations for smooth and mellow sounding ones, maybe some of the very early ones. Loctal 7A4 possible too. Must have a gain of 20.