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Looks like motocrossman24 beat me to it.
The tube purveyor that I bought from doesn't provide photos unfortunately. So, bit of crapshoot. 30-day guarantee helps.
That was true in my MicroZotl...
My top pick for an extended treble that you can play at stupid-loud levels without fatigue is the ribbed plate Foton 6h8c (6n8s). This has become my favorite in the Lyr. It's a foot-tap inducing, goosebump creatin', air guitar demanding musical groove tube that has caused me a lot of lost sleep. Be aware though that this tube is not a bass hammer. While the bass is tuneful, dynamic, and in correct proportion to the rest of the frequency range, it doesn't slam and bam and rattle your inner ears like some other tubes can. I can fix that with a quick twist on the Loki's left knob, but sans Loki, I would probably go with something else for Marilyn Manson and Linkin Park.
Due credit to @Phantaminum for turning me on to this particular version, and this Ebay seller:
(if you order any, be sure to select the Foton 'Ribber' Anode version from the drop-down box)
I have 4 now with 12 more on the way, so since I'm stashed until well past death, I think it's finally safe to share this info.
Interesting - thanks! I ordered one for my Saga - it's fun to play with new tubes.
Is that the one i have?
Not sure. These have very small ridges in the plates, and are 1953's. The ones I tried earlier did not have the ridges/ribs, and are '58's. Those sound really good too and very close to these, but the ribbed plates are better with more harmonic info and more body and tone.
Please post back with your impressions once you get them. Note that these take quite a while to break in fully (~100 hours). They'll be emphasized (but not irritating) in the treble and rather bleached out sounding initially, and start to sound good after about 20 hours. But they continue to improve after that. I wasn't able to detect any change after that 100 hour mark.
Bought a pair of the '53 Foton Ribbed.
Finally getting my 230VAC EU Lyr on Wednesday.
Also got an adaptor for rolling ECC88 family, will see how the Voshkod 6N23P's sound, think i have a couple laying around in a drawer.
Put in the 1957 Sylvania 6SN7GTB Chrome Dome. There is not a lot of tube glow.
With the Ken-Rad, does anyone know if there's a difference with the JAN-CKR labeled tubes?
Not if they both have the staggered plates.
Sorry by staggered do you mean different sized plates, or just offset/angled?
This is the tube I'm looking at which has off-angled plates:
Yep. That is a good one, but the same tube in clear glass, can be found cheaper and is the same thing, if the plates are angled/staggered.
Ahh, cool, well that was the cheapest NOS one that came up on ebay. All the other cheaper ones seemed to be used stock. And the other non-JAN/CKR labeled tubes are like $200+ so I thought this may have been a good deal. I'll continue looking around then.
Thanks for the tip!