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Schiit Lyr - The tube rolling thread - Page 498  

post #7456 of 8735
Quote:
Originally Posted by CraftyClown View Post

 

Just pm'd you HK  biggrin.gif

Thanks!  Got it!

Quote:
Originally Posted by OldSkool View Post


Good choice.  I highly recommend this seller. smile.gif

 

Cheers! beerchug.gif

You are too kind, Sir!

 

Cheers!beerchug.gif

-HK sends

post #7457 of 8735
Quote:
Originally Posted by ilikepooters View Post

More Siemens PCC189's have gone up on sale, i really can't reccomend these tubes highly enough, they absolutely trounce the stock tubes, absolute bargain.

http://www.ebay.co.uk/itm/2-x-PCC189-7ES8-SIEMENS-NOS-NEW-OWN-BOX-/221207288653?pt=DE_TV_Video_Audio_Elektronenr%C3%B6hren_Valves&hash=item3380fb5b4d

 

Looks like they'll keep turning up every so often.

 

I'm intrigued to try the ECC189 variant now, only 6.3v heater instead of 7.6v so should be more akin to E88CC or CCa.

Man I decided to roll these(they've been sitting me desk for some time) and guess what, They sound pretty darn good.

post #7458 of 8735

Hi everyone, I just started tube rolling with my Schiit Lyr and I have a question id like to have cleared up.  I got the 61NP and 6BZ7 tubes from Schiit and have been comparing between them.  I liked them both for different reasons (undecided), but I have a guitar amp that just so happens to have tubes that fit with the same pin pattern.  I plugged them into my Lyr and I got no sound at all.  They were Groove Tubes with the model number GT-12AX7-R.  I wasnt really expecting much, but considering they were the same size and pin configuration I was wondering why they werent compatible.  Can anyone explain why this is so for me? 

post #7459 of 8735
Quote:
Originally Posted by Eternalmetal View Post

Hi everyone, I just started tube rolling with my Schiit Lyr and I have a question id like to have cleared up.  I got the 61NP and 6BZ7 tubes from Schiit and have been comparing between them.  I liked them both for different reasons (undecided), but I have a guitar amp that just so happens to have tubes that fit with the same pin pattern.  I plugged them into my Lyr and I got no sound at all.  They were Groove Tubes with the model number GT-12AX7-R.  I wasnt really expecting much, but considering they were the same size and pin configuration I was wondering why they werent compatible.  Can anyone explain why this is so for me? 

What guitar amp?

post #7460 of 8735
Quote:
Originally Posted by Eternalmetal View Post

Hi everyone, I just started tube rolling with my Schiit Lyr and I have a question id like to have cleared up.  I got the 61NP and 6BZ7 tubes from Schiit and have been comparing between them.  I liked them both for different reasons (undecided), but I have a guitar amp that just so happens to have tubes that fit with the same pin pattern.  I plugged them into my Lyr and I got no sound at all.  They were Groove Tubes with the model number GT-12AX7-R.  I wasnt really expecting much, but considering they were the same size and pin configuration I was wondering why they werent compatible.  Can anyone explain why this is so for me? 

Just because they have 9 pins doesn't make them compatible.

 

Go to wikipedia and look up "triode" tubes.  The Lyr tubes have 2 triodes... dual triodes.  Each triode has 3 components Cathode, Anode, and Grid  So that's 6 of 9 pins.  Pin 9 is a shield.  Pins 4 & 5 are "Heaters"  Like small filament light bulbs the heaters heat the cathode.  Cathode gives up electrons to the Anode (plate) and the grid controls the flow.  Valves.

 

Anyway, different tubes,  they are electrical "valves" have different pin assignments for those components.  Also the voltages of the heaters are different.  Lyr valves are 6.3V

 

Ya gotta stick with compatible series valves.  6DJ8, ECC88, E88CC, E188CC, 6922, PCC88, and a bunch more. 


Edited by sceleratus - 5/27/13 at 7:45pm
post #7461 of 8735

So for a versatile amp that'll be great with just about any amp headphone, go for the Lyr?


Edited by wolfetan44 - 5/27/13 at 7:50pm
post #7462 of 8735
Quote:
Originally Posted by Eternalmetal View Post

Hi everyone, I just started tube rolling with my Schiit Lyr and I have a question id like to have cleared up.  I got the 61NP and 6BZ7 tubes from Schiit and have been comparing between them.  I liked them both for different reasons (undecided), but I have a guitar amp that just so happens to have tubes that fit with the same pin pattern.  I plugged them into my Lyr and I got no sound at all.  They were Groove Tubes with the model number GT-12AX7-R.  I wasnt really expecting much, but considering they were the same size and pin configuration I was wondering why they werent compatible.  Can anyone explain why this is so for me? 

The 12AX7 tubes are 12 volt tubes as opposed to the 6N1P/6BZ7s which are 6 volt tubes.  The pin pattern is the same but the internal wiring and power requirements are different.

The fine folks in this thread can recommend good tubes to roll into the Lyr.

 

Cheers!beerchug.gif

-HK sends

post #7463 of 8735
Quote:
Originally Posted by rb2013 View Post


Mc - you want to be careful in your terminology on these tubes, it can get confusing.  There are S&H CCa and there are S&H E88CC 6922s.  They are different tubes.  The CCa was a ruggedized version of the E88CC, has longer life, and is less prone to mirco-phonics. 

Here's a Telefunken specification sheet that cover CCa / E88CC / 6922.   Not sure about S&H but to Telefunken they are the same valve with the same specification.

 

 

 

post #7464 of 8735
Quote:
Originally Posted by wolfetan44 View Post

So for a versatile amp that'll be great with just about any amp headphone, go for the Lyr?

I'm not sure that's the best answer because the Lyr was designed for headphones with high power requirements, but there is the Asgard 2 and Valhalla amps that can cater to a variety of cans.  That being said, the Lyr does supposedly sound good with a lot of different headphones based on impressions I've seen on this thread.

 

Cheers!beerchug.gif

-HK sends


Edited by HK_sends - 5/27/13 at 8:01pm
post #7465 of 8735
Quote:
Originally Posted by HK_sends View Post

The 12AX7 tubes are 12 volt tubes as opposed to the 6N1P/6BZ7s which are 6 volt tubes.  The pin pattern is the same but the internal wiring and power requirements are different.

The fine folks in this thread can recommend good tubes to roll into the Lyr.

 

Cheers!beerchug.gif

-HK sends

Actually... technically... you can run them parallel at 6.3V

I "believe" the biggest problem is Grid voltage.

 

 

post #7466 of 8735

But not great? Because I will most likely have a lot of different headphones in my future.

post #7467 of 8735
Quote:
Originally Posted by wolfetan44 View Post

But not great? Because I will most likely have a lot of different headphones in my future.

You'll note that a lot of folks that post in this thread love the Schiit Lyr.

It's a very versatile Amp with the power to drive even the most power hungry HPs.

 

My opinion is the Lyr is the constant and the musicality comes from pairing different valves with different HPs.

There are many posts in this thread on that topic.

post #7468 of 8735
Quote:
Originally Posted by sceleratus View Post

Actually... technically... you can run them parallel at 6.3V

I "believe" the biggest problem is Grid voltage.

 

 

I defer to your wisdom!  I really am a newb concerning tube internals and electronics in general. wink_face.gif  I just know the first numbers on the tube type designates what the voltage is (at least on the ones I've used).

 

Cheers!beerchug.gif

-HK sends

post #7469 of 8735
Quote:
Originally Posted by sceleratus View Post

You'll note that a lot of folks that post in this thread love the Schiit Lyr.

It's a very versatile Amp with the power to drive even the most power hungry HPs.

 

My opinion is the Lyr is the constant and the musicality comes from pairing different valves with different HPs.

There are many posts in this thread on that topic.

What he said... biggrin.gif

 

Cheers!beerchug.gif

-HK sends

post #7470 of 8735
Quote:
Originally Posted by HK_sends View Post

I defer to your wisdom!  I really am a newb concerning tube internals and electronics in general. wink_face.gif  I just know the first numbers on the tube type designates what the voltage is (at least on the ones I've used).

 

Cheers!beerchug.gif

-HK sends

I just love reading the spec sheets......

Not that I understand them blink.gif

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