Schiit Lyr Tube Rollers
May 17, 2016 at 3:16 AM Post #9,361 of 23,494
Alright tube from my last point looks so dead on my tester, in the amp it plays but hiss is stronger now. I may have killed it trying to rejuvenate it but it was pretty unstable and noisy before.
So this kills the '60 and '61 pair of white print valvo cca I have (the '60 tube is still alive and kicking).
Then I found I had a single heerlen 1971 E88CC white print 7LG froim waaay long ago and decided to try to match it with a Valvo CCa white print '74 7LH which means swapping my other pairs of white print valvo cca the '60 tube ends up with a '67, the 71 E88CC gets a 74 Cca, and a 72 7LG CCa gets a 70 7LG.
Listening to the mixed bread pair of E88CC and CCa 72/74 and tubes are exactly the same, same sound completely quiet lovely sounding. Gotta listen to the 60/67 pair now to see how it works out :D
 
May 17, 2016 at 11:39 AM Post #9,362 of 23,494
http://m.ebay.com/itm/2-x-AEG-E88CC-Radio-Rohre-matched-Pair-gold-Pins-/111999502314?nav=SEARCH
I`m pretty sure thats an AEG labeled telefunken e88cc it is possible that it will sell relatively cheap because people may miss it
 
May 17, 2016 at 5:29 PM Post #9,365 of 23,494
First microphonic tube I got or that I noticed, one of my Valvo E88CC 1961 Heerlens, only noticed it when I tapped the tube and when switching from low gain to high gain. Anything I should look for sound wise with that tube?
 
May 18, 2016 at 3:12 AM Post #9,366 of 23,494
May 18, 2016 at 3:35 AM Post #9,367 of 23,494
May 18, 2016 at 1:08 PM Post #9,369 of 23,494
Thik I'm going to pull the trigger on the lite dac 60, anything to be concerned about because its a very old design? Seen posts about it dating 2005, 2006.

 
You might want to PM Guidostrunk.  He just got one after extensive research and wasn't thrilled after he got it.
Could just be a synergy thing with his other equipment...but he may have some info for you worth considering.
 
 
Edit:  I know many have had great luck with that DAC however, including rob2013 who recommended it to me a long time ago.  Like I said, it's all about synergy.  Good luck.
 
May 18, 2016 at 2:30 PM Post #9,370 of 23,494
Thik I'm going to pull the trigger on the lite dac 60, anything to be concerned about because its a very old design? Seen posts about it dating 2005, 2006.


Seems to be held in high regard by some. But I'm assuming you haven't heard the DAC thus the question?
So buying w/o hearing brings up two questions for me:
1. Are you expecting this to be a plug and play DAC? Because there is a lot of attention on the this DAC as a DIY upgrade project.
2. If you are looking for a DIY project, be sure you are willing to devote a lot of time and $ to understanding all the options for all the target components. Because it will take a lot of time and money away from all the other possibilities in life. Lot's of downtime also on the DAC. No music.
 
In terms of the technology, this chip (PCM1704) was released in ~1998. No doubt an advancement over the audio delta-sigma available at the time. Intended as a high performance chip for audio. Read a release information article here:   http://www.stereophile.com/news/10221/#dOFi5mKMqqU2Uidq.97
The PCM1704 chip, originally about $12-$15, now about $60-$70 because it has reached end-of-life, no more will be manufactured.
 
If it's about using the 6922s you have, eh, you could also buy another tube amp that uses 6922s. Just a caution on the DIY project aspect of it.
 
Also, this summer, lots of show activity with opportunities to listen to a variety of DACs. And, new Schiit products being released.
 
May 18, 2016 at 2:47 PM Post #9,371 of 23,494
  First microphonic tube I got or that I noticed, one of my Valvo E88CC 1961 Heerlens, only noticed it when I tapped the tube and when switching from low gain to high gain. Anything I should look for sound wise with that tube?


Might be fine. Not unsual. Has to be your ears that tell you. You can monitor the tube during burn-in, sometimes gets worse, other times it will disappear.
Great if you have a single tube amp like the Vali2, then you could listen to the tube and evaluate each triode independently.
Bottom line: if it's free of any noticeable noise, then it's either great or just OK/average. It's the same for any tube, the subtle spacial imaging will suffer, it will be... boring!
 
May 18, 2016 at 4:25 PM Post #9,372 of 23,494
Thanks guys, not really bummed about the tube tbh, set sounds fine with music. Just passed 24 hrs of burn in, I`ll see how that goes the set was pretty cheap. Was considering other sets from the same seller, thank God I got outbid every time, was considering a set of Telefunken E88CC for $200 bucks from this seller think I`ll pass on them. Not really looking for any more tube amps atm, but we`ll see if Schiit is going to have some good schiit later on in the year. Would really like a tube dac that I could use at the same time as using my lyr 2. I would not be modding the Lite Dac 60 just tube rolling. Sent a couple pm`s about the dac, thanks for that.
 
May 18, 2016 at 10:55 PM Post #9,373 of 23,494
The Philips 288ccs came in from Spain . They have a very clean sound with pretty good bass and treble. They just don't seem very resolute . I tried them in the Lyr , then in my dac. Consistently, unimpressive, uninvolving, just another tube.
 

Users who are viewing this thread

Back
Top