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Aune T1 USB Tube DAC+Amp Discussion Thread ***See first post for FAQ*** - Page 65

post #961 of 5982
Quote:
Originally Posted by CoiL View Post

Salvatore, those Mullard shield tubes are great and keepers but when it comes to high hopes - there is always something better out there ;D For me, it`s the closest tube to my amperex and thats why I like it BUT, like I`ve told already, they also have little minus side - whole highs range feel littlebit "flat" and lack of sparkly sound & transparency, but only a little. And this might be only my tube, you never know when comparing NOS tubes.

 

Haha true. There is always better tubes and when you have the best tubes there is always better amps and so on. Right now I'd like to get myself familiar with different brand sounds such as Mullard, Amperex, Telefunken, Siemens, Valvo and Lorenz. I'm willing to put few hundreds more to experience with tubes, but in the end I'll keep the ones I like the most (the cigar box I ordered should take around 10 tubes) and sell the rest. And all this comparing and impressions are subjective to the listener. Your personal likings, music styles and headphones all have effect to the final outcome.

 

E: Who knows maybe someday we have enough tubes to set up a nordic tube rolling conference where we could test tubes and headphones ;)


Edited by Salvatore - 2/25/13 at 2:45am
post #962 of 5982
Quote:
Originally Posted by toschek View Post

Anyone who hasn't jumped on the Lorenz PCC88 bandwagon should do so soon, they are a great tube for the money and I have a feeling they won't be affordable for much longer.

 

Can you provide a little more detail on your impressions of this tube as well as WHICH Lorenz PCC88 to which you're referring? A search on Ebay turns up what appears to be different versions in different price ranges.

 

Thanks!

post #963 of 5982

BluesDaddy, look at the previous page, I posted a eBay link and toschek said they were the ones.

 

 

e:

 

Btw, guys&girls, I think I`ve stumbled on something good for all of you! Did comparing with Mullard ECC88 shield logo VS. Philips PCC189 and they sound basically identical! I have to have some more listening but atm, After comparing with Metallica - ST.Anger & Silversun Pickups - Simmer.... I can`t make difference! Even if it has difference it is definitely so minor that it doesn`t matter.

 

Now to the good part - this tube costs only 6.95$ (4.55£) + shipping! There`s 11 of them available. Here is the eBay link (I bought mine from there): http://www.ebay.co.uk/itm/251224635718?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1438.l2649

 


Edited by CoiL - 2/25/13 at 3:45am
post #964 of 5982
Quote:
Originally Posted by CoiL View Post

icecap, I`ve already talked about PCC88/PCC189 heater voltage differences in this thread, they will work flawless with T1. 

I have Tungsram PCC88, Mazda PCC189, Tesla PCC88, Philips PCC189 - they all work like charm! 

 

But I`m not sure what you mean about "variable gain factor"?

 

my bad, probably this thread is too busy that I missed out that mention.. tongue.gif

 

some tubes play louder than others on the same volume, that's the simple gain factor explanation.. a variable gain factor can have different gain level in different workable circuits..

 

this search from audioasylum comes up with the results and explaining why it is not recommended, although is abit not user-friendly in their viewing of the entire thread, hah.. http://db.audioasylum.com/cgi/search.mpl?searchtext=ecc189&SelectForumtubes=tubes

 

I think maybe the tube in T1 is used in buffer that some distortion is not noticeable.. but I don't know the circuit in T1 well enough to warrant any definite answers.. hah..

 

a disclaimer here I am not asking people to stay away from PCC189 tube, on the contrary, this is also a share of info to get more people understand these concerns so tube rolling is more well-informed in a way...

 

do also take note PCC88/7DJ8 is definitely usable on T1.. using these tube types on T1 will have a longer life in fact as the voltage supplied from T1 is lower than the operating 7.6V for these tubes.. smile.gif

post #965 of 5982

icecap, the link you gave shows ECC189 etc. not PCC189... aren`t they different?

 

ECC189 specs 6.3V heater voltage & 365mA current while PCC189 specs 7.3/7.6V & 300mA. They are different.

 

Btw, some intresting reading about measurements with PCC88/ECC88/E88CC: http://www.vintage-radio.net/forum/showpost.php?s=956d7f734c4ea4a881f95ffe01f9dc08&p=339133&postcount=16

 

What comes to gain in variable applications... for example my Philips PCC189 has same gain level as my Mullard ECC88 (volume knob is exactly same position and acts same when increased).

 

And what comes to that "harmonic distortion"... sry, but I can`t hear any! And vol knob @ max is same as with Mullard ECC88.

 

I can`t assure you all for sure that all PCC189 will work but imho - PCC189/7ES8 & PCC88/7DJ8 work flawless with T1 ! 

Atm I have 2 PCC88 and 2 PCC189 - all work flawless. I have 4 more PCC189`s coming and will comment soon.

 

Sry, but this deserves reposting:

Quote:

Btw, guys&girls, I think I`ve stumbled on something good for all of you! Did comparing with Mullard ECC88 shield logo VS. Philips PCC189 and they sound basically identical! I have to have some more listening but atm, After comparing with Metallica - ST.Anger & Silversun Pickups - Simmer.... I can`t make difference! Even if it has difference it is definitely so minor that it doesn`t matter.

 

Now to the good part - this tube costs only 6.95$ (4.55£) + shipping! There`s 11 of them available. Here is the eBay link (I bought mine from there): http://www.ebay.co.uk/itm/251224635718?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1438.l2649

e: Had some more listen with some electronic & jazz music and they indeed are so so similiar! 

 

But after playing with Mullard ECC88 & that Philips PCC189 switched back to my amperex - still way better tube, in every way! Damn, I `m thinking again about buying those two I posted here -.-


Edited by CoiL - 2/25/13 at 4:43am
post #966 of 5982

yes, they are different.. but they are similar in the variable gain for both, just difference in voltage.. the variable gain is the compatibility issue I am bringing up.. 189s...

 

PCC88 will work definitely..

post #967 of 5982

Well, as far as my experience goes with PCC189 & Aune T1, there are no issues. If I experience any, will tell everybody.

post #968 of 5982
Quote:
Originally Posted by CoiL View Post

BluesDaddy, look at the previous page, I posted a eBay link and toschek said they were the ones.

 

 

Thanks, was looking for a post from toschek and overlooked yours.

post #969 of 5982
Quote:
Originally Posted by CoiL View Post

Now to the good part - this tube costs only 6.95$ (4.55£) + shipping! There`s 11 of them available. Here is the eBay link (I bought mine from there): http://www.ebay.co.uk/itm/251224635718?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1438.l2649

 

These are already gone, though with shipping it made them $16 each. I just picked up this one for $10 and change (seems like the same thing). This is going to nickel and dime me to death and I don't even have the Aune yet.

post #970 of 5982

Hmmm... it seems seller is hasn`t relisted his products or something like that because atm his store is empty and there certainly were 11 left of them. 

Anyway, these should be exact ones like I have but the price? http://www.ebay.com/itm/4x-PCC189-7ES8-PHILIPS-NOS-HOLLAND-Tube-Valvula-Rohre-Valvola-Lampe-TSF-/390540830535?pt=Vintage_Electronics_R2&hash=item5aee0c2747

All those NOS tubes seem to go fast and prices are raising ;( 

post #971 of 5982

He may have discovered he was pricing lower than the market value and decided to pull the listing. Probably will re-list later at a significantly higher price.  With the tube market burgeoning due to cheap equipment from China, and folks wanting to replace the Chinese tubes, it is an inevitable trend.  Hopefully some manufacturers will step into the market with products as good as the old the stuff.

post #972 of 5982

Hi,

 

just bought one of these valves,  http://www.ebay.com/itm/390540043866?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2648 any thoughts on them?

 

Maybe was a little quick on the trigger, but wanted some thing shipped today to get started.

post #973 of 5982

With that price, I would have taken shield logo Mullard ecc88 from rockgrotto. But it looks same as my Philips PCC189 Heerlen plant tube, might be same tube, just different branding. Like I told before, my Philips PCC189 sounds same as my mullard. If it`s same tube, its good one but not the best.


Edited by CoiL - 2/25/13 at 12:37pm
post #974 of 5982

Thank you for your comments,  I contacted pinkfloyd@ rockgrotto yesterday with pm  but no answer so far  and I'm dying to get some tubes to try, at least now I have one in the mail.  Hopefully he will answer me soon.  Also I'm lookng for some amperex like the ones you mentioned in earlier posts, but haven't been lucky soo far.


Edited by Xela71 - 2/25/13 at 12:59pm
post #975 of 5982

patience, he is a busy dude and I`m sure he will answer soon.

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