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Schiit Lyr Tube Rollers
Aug 23, 2018 at 5:48 PM Post #18,736 of 23,493
Hey guys, I've been looking at these. Need feedback, please.

https://www.canuckaudiomart.com/det...-orange-6dj8-stagegetter-lot1/images/1761057/


1761057-amperex-orange-6dj8-stagegetter-lot1.jpg
 
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Aug 23, 2018 at 5:49 PM Post #18,737 of 23,493
Thenewguy007 said:
I think you tube rolled more than anyone here & that's saying a lot.
Most people stop after a dozen or so tubes after they find something they really like & are content with it. Seems you won't stop until you test every single tube type in existence lol.

You gotta make a list ranking the ones you liked the most when you are finished tube rolling.
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Hah, just a serious addiction :)

I'll definitely make a list when I'm done with this next batch.
 
Aug 23, 2018 at 6:50 PM Post #18,740 of 23,493
AuditoryCanvas said:
Or they took a blow torch to the glass to make it a pinch waist...The construction looks off too.
Click to expand...

Perhaps the blowtorch is what increased the diameter of the 'p' relative to the 'e'. :relieved:

amperex.jpg
 
Aug 23, 2018 at 7:36 PM Post #18,741 of 23,493
Aug 23, 2018 at 8:58 PM Post #18,745 of 23,493
AuditoryCanvas said:
Did you get the 1950s ones with the 45 degree angled getter?

The Lyr 2 is the same as the MJ2, so those pinched waist 7062 will work in the Lyr 2. I posted a chart a few posts back of what works and what doesn't.
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The Telefunken 12AT7 tubes with the angled getters came today. They have the Telefunken diamond in the base, rebranded as Sonotone. The description of one said RCA but I could see the diamond in the photos plus the Made in West Germany was another hint. Date codes are 7876119 and 7876137. Sonotone's EIA code is 787 so I am guessing these are 1961, weeks 19 and 37 respectively. Not quite 1950s but close.

Also won an auction this afternoon for a quad of 1958 PW Heerlen 7062 testing at 100%. Seemed like a good deal at $43 for the four tubes.
 
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Aug 23, 2018 at 11:17 PM Post #18,746 of 23,493
gardibolt said:
The Telefunken 12AT7 tubes with the angled getters came today. They have the Telefunken diamond in the base, rebranded as Sonotone. The description of one said RCA but I could see the diamond in the photos plus the Made in West Germany was another hint. Date codes are 7876119 and 7876137. Sonotone's EIA code is 787 so I am guessing these are 1961, weeks 19 and 37 respectively. Not quite 1950s but close.

Also won an auction this afternoon for a quad of 1958 PW Heerlen 7062 testing at 100%. Seemed like a good deal at $43 for the four tubes.
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The Teles could have made in the late 50s and stamped by Sonotone later. I'm sure they're the same.

I have 4 of the PW Heerlen 7062 from the same seller. two matched up well, the other 2 not so much, and one was microphonic. You got a much better price than me :)

I also got a pair of Tung-Sol 5814A from him which were solid, and sound great. I wasn't impressed with the standard Tung-Dol 12at7, but I do have a pair of 50s Tung-Sol 12at7-WA (military version) that sound fantastic.

The 12au7s I've tried all seem rolled off on the top, which could be due to how their low amplification factor behave in the Schiit amps. 12ax7 can be a bit hot, so the 12at7 and similar variants and types seem to be the best fit for Schiit.
 
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Aug 23, 2018 at 11:19 PM Post #18,747 of 23,493
Aug 23, 2018 at 11:37 PM Post #18,748 of 23,493
AuditoryCanvas said:
The Teles could have made in the late 50s and stamped by Sonotone later. I'm sure they're the same.

I have 4 of the PW Heerlen 7062 from the same seller. two matched up well, the other 2 not so much, and one was microphonic. I also got a pair of Tung-Sol 5814A from him which were solid, and sound great. I wasn't impressed with the standard Tung-Dol 12at7, but I do have a pair of 50s Tung-Sol 12at7-WA (military version) that sound fantastic.

The 12au7s I've tried all seem rolled off on the top, which could be due to how their low amplification factor behave in the Schiit amps. 12ax7 can be a bit hot, so the 12at7 and similar variants and types seem to be the best fit for Schiit.
Click to expand...
The second day of burn in finds the Tung Sol 12AU7s much better, or I'm just getting used to them. The high is still somewhat subdued but it has evened out significantly, so it's giving me a dark flavor like listening through the T1.2s. Piano sounds really good, and piano backed by orchestra even better. High notes sound meaty instead of plinky, which always annoys me. Rich Mullard-style mids.

I have the Lyr2 set on low gain; I wonder if these might be better served on high gain since these tubes have such low gain themselves? Or is that just adding distortion? Something to play around with this weekend.
 
Aug 24, 2018 at 8:54 PM Post #18,750 of 23,493
The Tung Sol 12AU7s are pretty well burned in now and the treble has opened up some. The big discovery is how much these tubes love organ music. Deep, visceral rumbling--and still through the HD600s, which are hardly bass monsters.

Listening to Liszt's variations on a theme by Bach, Thomas Trotter on the organ. Never have I heard headphones handle organ like this. Spectacular.

They do seem to benefit from running high gain on the Lyr.
 
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