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EZ81 is broke, what to get?? (Read 467 times)
jorgen
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Posts: 63
EZ81 is broke, what to get??
07/20/14 at 06:04:02
 
Hi all
Ive had my MT for 6 months now and last night the ez 81 tube went down, did a little research to make sure thats the one tube, but I am sure. This is the same tube that was giving me a little trouble earlier, some high pitch bi-sound, coming from the amp itself, didnt affect sound, so Im just hoping it was an issue with this particular tube, and that my amp doesnt need new tubes every 6 months of use. .  .

Looking for a replacement, but this is an area of expertise where I DO NOT excel... What are my alternatives? What do I have to expect to pay for these tubes? And how do they sound?


To be honest, I would appreciate a clear message, get this tube from that site, pay this much! Tomorrow I leave for a two week vacation, and would really like to have them by the time I get back.

really nice of you guys to help out.
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« Last Edit: 07/20/14 at 06:05:55 by jorgen »  
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grinnell
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Posts: 66
Re: EZ81 is broke, what to get??
Reply #1 - 07/20/14 at 07:18:45
 
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MT w/ 1940's RCA 6v6g st
Ref 3A de Capos
VPI HW-19 mk iv
Mac Tuna MR-67
MH 25.2 CDP
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jorgen
Senior Member
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Posts: 63
Re: EZ81 is broke, what to get??
Reply #2 - 07/20/14 at 07:32:26
 
went to the tubes store, and figured i shoud try some options:

ended up with:
tesla 6ca4/ez81

Mullard 12 au7 reissue¨

jan-ge6x4wa, can I use this one??

Electro-harmonix 6ca4/ez81

genalex gold lion 6v6gt/cv511


I have no idea what these tubes will be like. but figured I should try some different ones, so now i have something to look forward to when i get home aswell. Hope i have undertood everything correctly and that i can use all of these tubes. for once I understand the excitement of shopping...
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grinnell
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Posts: 66
Re: EZ81 is broke, what to get??
Reply #3 - 07/20/14 at 17:13:44
 
if your mini is the second version of the first one modified and uses EZ81 you can NOT use jan-ge6x4wa, the 6X4 is 7pin the EZ81/6CA4 is a 9pin tube
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MT w/ 1940's RCA 6v6g st
Ref 3A de Capos
VPI HW-19 mk iv
Mac Tuna MR-67
MH 25.2 CDP
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Fireblade
Seasoned Member
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Knowledge comes, but
wisdom lingers.
A.L.Tennyson

Posts: 702
Re: EZ81 is broke, what to get??
Reply #4 - 07/20/14 at 18:28:29
 
I also had the stock EZ81 (left channel) blow off at about 4 months of use. Replaced it with both RFT EZ81 and RFT EZ80. Both sound fine, but I personally prefer the EZ80 spec sound. RFT's are reliable, great quality and affordable. My RFT EZ80's have been on for over a year now!
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« Last Edit: 07/20/14 at 18:29:25 by Fireblade »  

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jorgen
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Posts: 63
Re: EZ81 is broke, what to get??
Reply #5 - 07/20/14 at 20:45:42
 
Grinnel: thanks I wasn't aware and did no know this, will contact tubestore and change my order. But I can use both the ez 81 ez 80 and ez 90?
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« Last Edit: 07/20/14 at 21:51:52 by jorgen »  
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grinnell
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Posts: 66
Re: EZ81 is broke, what to get??
Reply #6 - 07/21/14 at 14:04:09
 
I don't think so the EZ90 is a variant of 6x4.  If you have the version that uses the EZ81 you can't, check with Decware.

I'm not sure about the ez80 that seems to be a 6v4 variant
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MT w/ 1940's RCA 6v6g st
Ref 3A de Capos
VPI HW-19 mk iv
Mac Tuna MR-67
MH 25.2 CDP
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jorgen
Senior Member
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Posts: 63
Re: EZ81 is broke, what to get??
Reply #7 - 07/22/14 at 00:36:57
 
Hi guys
Got to say kudos to the tubestore, they changed.my order no question asked, added an ez80, not sure what kind. So when I return from my vacation I can expect a package with some different tubes. Guess I have some experiments to do this autumn!

Contemplating to get some different versions of the 6L6/6V6 as described by decwareand even OA3(?) tubes. This might be an costly hobby....but hey, nice aswell
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« Last Edit: 07/22/14 at 10:02:12 by jorgen »  
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grinnell
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Posts: 66
Re: EZ81 is broke, what to get??
Reply #8 - 07/22/14 at 14:43:41
 
VR OA3/OA2 and OA2/OB2 type tubes are cheap.  good tube rolling

6v6g ST  not cheap but some great tubes out there
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MT w/ 1940's RCA 6v6g st
Ref 3A de Capos
VPI HW-19 mk iv
Mac Tuna MR-67
MH 25.2 CDP
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jorgen
Senior Member
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Posts: 63
Re: EZ81 is broke, what to get??
Reply #9 - 08/11/14 at 10:39:33
 
Hi guys
Got bac k from vacation and did my first tuberolling over the weekend. Tried out a EZ 80 instead of the standard EZ 81, but at the same time rolled the 6v6 standard with a Gold Lion (see above). Played a lot of music that im familiar with, and wow, subtle but very interesing change in sound character. In my ears the EZ 80 is a little more "raw", i do believe I got a little more in the low end, not sure if i lost any in the highs. Need to learn a whole lot more on how to listen. AND those new tubes needs a few hours I guess before I can decide how they sound.

My problem though is that im not familiar with tubes and how they work, and which tube does what... So if anyone has a "Tuberolling for dummies"-link...

Can I ask: what would happen if I went from 12au7 and tried 12ax7 or a 12at7?

And does anyone tried with luck to use a 6L6 or 6K6, as in what are the main differences in these kind of tubes.
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