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January 22, 2022, 07:13:41 PM

Author Topic: Tube Rolling w/Crack  (Read 585945 times)

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Offline Paul Birkeland

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Re: Tube Rolling w/Crack
« Reply #2400 on: December 07, 2021, 04:47:21 AM »
Yes, of course have him try the other tubes.  Also be sure he isn't using some completely weird headphone that is expecting a lot more power.
Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man

Offline Lesser_green

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Re: Tube Rolling w/Crack
« Reply #2401 on: January 06, 2022, 03:48:56 PM »
Hello fellow Crack lovers! I have been enjoying my crack for about 4 years and added the SB upgrade about two years ago. I wont turn this into a troubleshooting post, but I suspect my stock Phillips JAN 6080WC is having... issues and seems to be getting worse. I figured now was the perfect time to try something new. I really don't have any experience with tubes other than what I received stock (previously mentioned 6080 and what I think is a Westinghouse 12au7).
Skimming this forum and others I thought I might try a 6N13S. I see a few for cheap on eBay but don't want to wait 4-6 weeks for it to arrive from Russia. Looking at thetubestore.com they have more reasonable shipping times but higher prices, which makes sense. They are selling a Russian 6N13S for $26 and a Winged "C" 6N13S for $50. Both descriptions say they were manufactured by SED in St. Petersburg.

My questions are: What is the difference? Is it really just a difference in logo or is there something more than that to justify twice the price? It says production has ended for winged C, but wouldn't that mean the same for the other tube? I have read good things about the =C= but I don't know if the same applies for the Russian 6N13S. Finally, I was thinking of picking up a spare 12au7 while I am at it. Any recommendations for if I should just grab another NOS 12au7 or should I try one of the reissues or a ECC82? I know a lot of it is personal preference, but I am kinda lost and mostly going off the recommendations on the internet. Any insight would be much appreciated! Thanks!

Offline Paul Birkeland

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Re: Tube Rolling w/Crack
« Reply #2402 on: January 06, 2022, 05:22:27 PM »
For 12AU7s, I would look for random used tubes on eBay that are tested.  Something like this is probably OK:
https://www.ebay.com/itm/284469134007?hash=item423bae82b7%3Ag%3AFZAAAOSww5FhU6ls&LH_ItemCondition=4

Something like this maybe for 6080s:
https://www.ebay.com/itm/144356020207?hash=item219c4a0fef:g:M~QAAOSweYZh0xKC
Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man