Tube Rolling w/Crack

Dr. Toobz · 1223621

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Offline lior.amsalem

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Reply #615 on: August 29, 2013, 10:36:27 AM
While waiting for my 5998, I'm really enjoying my new Mullard set (6as7g with 12au7) :)



Offline Kris

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Reply #616 on: August 29, 2013, 10:37:36 AM
Thank you PB.



Offline Downhome Upstate

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Reply #617 on: September 18, 2013, 08:58:19 AM
I stopped playing around with bypassing the Dayton film caps in the Crack, and rolled in a 'platinum' NOS Mullard CV4003 from Upscale. More prominent (and fuller) mids, more air around instruments for sure, deeper bass, but there was still something missing.

Got a vintage RCA 6080 from Jim McShane, replaced the stock Sylvania 6080 with the RCA tube and, Whoa, Nelly!!  I'm just about not believing what I'm hearing thru the HD600s with this combination.

Why did it take me so long to discover this? I wasted several thousand dollars looking for what I could have had for closer to $750.

A Crack and a pair of high impedance 'phones ought to be mandatory continuing auditory education before folks go spending big bucks on audio gear chasing 'the absolute sound'.

"Too soon old;
   Too late schmart"

    The late Mr. Fox, Fox's Deli, Rochester, NY

Mike P.


Offline Mike B

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Reply #618 on: September 18, 2013, 09:56:14 AM
I got excellent results with the "incentive" tubes Dan offered to the first "lucky 6"

An NOS Sylvania triple mica 6080 and an NOS RCA clear top side getter.

Both bought off ebay for about $12 each

Far away from the bleeding edge


Offline John EH

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Reply #619 on: September 18, 2013, 06:38:16 PM
I got excellent results with the "incentive" tubes Dan offered to the first "lucky 6"

An NOS Sylvania triple mica 6080 and an NOS RCA clear top side getter.

Both bought off ebay for about $12 each

I've got some JAN Phillips triple mica 6080's which are probably the same rebranded tube that are the best of the 6080's I've heard.

Still the best 12au7 in my cracks are the CV4003 Mullard box plates.



Offline Mike B

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Reply #620 on: September 19, 2013, 07:27:01 AM
I did get one of those box plates and it does sound the best.  A little richer in the mids I would say.

And I do mean a little.  It cost $85.  I would much rather have 6 RCA clear tops.

Far away from the bleeding edge


Offline Paul Birkeland

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Reply #621 on: September 19, 2013, 07:27:37 AM
I did get one of those box plates and it does sound the best.  A little richer in the mids I would say.

And I do mean a little.  It cost $85.  I would much rather have 6 RCA clear tops.

Ouch, I just snagged a pair for $20 :(

Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man


Offline John EH

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Reply #622 on: September 29, 2013, 09:43:12 PM
Finally pulled the trigger on a Chatham Tung-Sol 5998 and WOW! much better than the 6080 in my opinion.  Tighter bass. Much more clarity. 

Crack is even more amazing!

John



Offline Loquah

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Reply #623 on: September 29, 2013, 11:14:40 PM
Have you ever hear a GEC 6AS7G brown base, John? I love mine, but I've never heard a 5998 to compare it with.

Check out my reviews on YouTube - https://youtube.com/c/passionforsound


Offline John EH

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Reply #624 on: October 04, 2013, 01:50:57 PM
Never heard one.

This Chatham Tung-Sol 5998 is where its at.  Best 6080 variant I've heard to date.

I'm streaming MOG now listening to Dylan and I'm blown away.  The 5998 is a bit expensive but worth the money if you ask me.

Looks cooler too.



w0lfd0g

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Reply #625 on: October 04, 2013, 01:55:44 PM
Having my farewell session with the Crack atm.  Tung Sol 7236 + 1959 Amperex 7316 with D Getter - Heaven. 

But tube rolling has been too addictive for me.  Going SS for a while.  Selling my Crack, all my tubes and my tube tester.

So long and thanks for all the fish.



Offline Natural Sound

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Reply #626 on: October 04, 2013, 02:25:25 PM
Having my farewell session with the Crack atm.  Tung Sol 7236 + 1959 Amperex 7316 with D Getter - Heaven. 

But tube rolling has been too addictive for me.  Going SS for a while.  Selling my Crack, all my tubes and my tube tester.

So long and thanks for all the fish.

You'll be back.  ;)



Offline John EH

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Reply #627 on: October 04, 2013, 04:21:36 PM
Having my farewell session with the Crack atm.  Tung Sol 7236 + 1959 Amperex 7316 with D Getter - Heaven. 

But tube rolling has been too addictive for me.  Going SS for a while.  Selling my Crack, all my tubes and my tube tester.

So long and thanks for all the fish.

What kind of tube tester do you have?



w0lfd0g

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Reply #628 on: October 04, 2013, 04:53:52 PM
Hi John

It's just a emissions tester, but quite a nice one: Precision Apparatus 612 (with manual, tube test data and updates).  Hardwired for Australian voltage and digitally modified to reduce warm up time (I'm quoting the person I bought it from).

Cheers



Offline Paul Birkeland

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Reply #629 on: October 05, 2013, 08:07:45 AM
I have a 612 as well.  It tends to be uncommon to find a tester with all the old jumbo sockets - this one was just the ticket!

Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man