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EL83 = SV83, 6P15P TESLA Ebay  misinformation? (Read 263 times)
Dana
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EL83 = SV83, 6P15P TESLA Ebay  misinformation?
09/04/21 at 17:08:58
 
Hopefully I got it sorted out.
Several hours after what I thought were the correct tubes for the SE84UFO I checked the forum and darn (not those exact words but close).  The Russian designation of a SV83 is different.

OK I'm a little slow the 84 designation is in the name of the amp.
Doh!!!

I tried to cancel the order but no luck.  I requested an EL84 and I got pushback.  I sent pictures of the pinouts to show the SV83 vs the EL83 and still got pushback.  I finally found a non ebay store that contradicted what they were sayng all along.

The Reflector 6p15p-EB (SV83) is similar to EL84 Tube Types

Ebay
EL83 = SV83, 6P15P

This was my final response

Of course such tube is closer to el84, but with other pinouts! You need some adapter or make the changes in your scheme!
SO finally i will send two tubes 6p14p/el84 to you, maybe matched pair) - it will be my present for you!:)

Are there power tubes on ebay that I can try or do I need to stay with American venders?

Cheers

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Tom Waits:
And the newspapers were fooling,
And the ash-trays have retired
'Cause the piano has been drinking,
The piano has been drinking
The piano has been drinking,
Not me, not me, not me, not me, not me
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Geno
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Without music, life
would be a mistake.
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Re: EL83 = SV83, 6P15P TESLA Ebay  misinformation?
Reply #1 - 09/04/21 at 17:42:13
 
Man, just stay with the SV83’s that Steve sells. You can’t go wrong there, and it is doubtful that you’ll better them.
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SE84UFO(25th Mods) OR Sansui AU-222 Intgr. Amp OR Sansui 800 Recvr
Cambr. Audio CXN (ModWright) • Cambr. Audio CXC • ZBIT
Technics 1210 MK5 (KAB Mods) - KAB/Ortof Concorde 40 cart
Otari MX5050 R2R
ZLC Pwr Cond.
Lii Cryst 10 Open Baff • Lii W15 Bass Baff
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CAJames
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"I've run every
red light on memory
lane."

Posts: 294
Re: EL83 = SV83, 6P15P TESLA Ebay  misinformation?
Reply #2 - 09/04/21 at 18:04:56
 
LT;DR EL83s are NOT compatible with the UFO amps, but they are adaptable.


Here's the deal. A year or so ago when I ordered my UFOs I was intrigued by the possibility of using EL83s, but there were stories on this site about bad things happening if you tried them. So I checked the datasheet and sure enough EL83s have a different pinout than 6P15P types  and EL84s. Note also that "SV83" is brand name for 6P15P type tubes. I don't know exactly how EL83 got in the mix, but I suspect someone saw SV83 and figured EL83 would be the same thing. They are similar, but they most definitely are not interchangeable. But they are adaptable.

If you don't want to buy tubes from Steve there are plenty of people selling 6P15P, 6P15P-EB and 6P15P-EP tubes that you can use, and they are generally cheap. I bought a number of them, some sound very good, others less so. But for me none of them sound as good as adapteed EL83s. If you are interested in my EL83 journey it is here:

https://www.decware.com/cgi-bin/yabb22/YaBB.pl?num=1607194889

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Geno
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Without music, life
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Posts: 1387
Re: EL83 = SV83, 6P15P TESLA Ebay  misinformation?
Reply #3 - 09/04/21 at 18:49:16
 
That is interesting CA!  So, is that what you’ve stayed with in your Zens?  

If so, I trust you enough to give em a try. (If you can’t trust an audio loving Physicist, who can you trust???)  😉🤓😎
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SE84UFO(25th Mods) OR Sansui AU-222 Intgr. Amp OR Sansui 800 Recvr
Cambr. Audio CXN (ModWright) • Cambr. Audio CXC • ZBIT
Technics 1210 MK5 (KAB Mods) - KAB/Ortof Concorde 40 cart
Otari MX5050 R2R
ZLC Pwr Cond.
Lii Cryst 10 Open Baff • Lii W15 Bass Baff
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CAJames
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"I've run every
red light on memory
lane."

Posts: 294
Re: EL83 = SV83, 6P15P TESLA Ebay  misinformation?
Reply #4 - 09/04/21 at 19:54:05
 


I don't know that being an audiophile physicist is a good reason to trust me, but I do tend to gravitate to the road less traveled. So, yes, I've pretty much stayed with EL83s since December. I started with Tesla, and tried Siemens and Telefunken and like TFK the best (they are also the most expensive, go figure). I continue to wonder if I like the EL83s just because they were such a hassle to get them to work, so I'll swap in 6P15P types (both Decware that came with my amp, and Ebay) occasionally and I'll be damned if I don't keep coming back to the EL83s. Actually just did it this morning, before I saw this thread.

Of course the input and rectifier tubes matter as well. I've been using Amperex 7308s (bought them in the early days of the internet for a few bucks each) and Mullard Fat Base Smooth Plate GZ34s, which were a struggle for my Scottish Heritage, but worth the investment.

So, if you decide to pursue the EL83 option let me know how it goes, I'd be very curious what your experience is like.
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Dana
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Re: EL83 = SV83, 6P15P TESLA Ebay  misinformation?
Reply #5 - 09/04/21 at 21:05:16
 
I've been on this site for years and have never seen tubes for sale separately.

What's the link and is it going to take a year to get them?
Smiley

Also in your original post CA you mentioned they might not last as long.   Any update on that?
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Tom Waits:
And the newspapers were fooling,
And the ash-trays have retired
'Cause the piano has been drinking,
The piano has been drinking
The piano has been drinking,
Not me, not me, not me, not me, not me
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CAJames
Seasoned Member
****


"I've run every
red light on memory
lane."

Posts: 294
Re: EL83 = SV83, 6P15P TESLA Ebay  misinformation?
Reply #6 - 09/04/21 at 21:32:58
 
Here's the link for the tubes:

https://www.decware.com/newsite/tubesets.htm

As for the EL83s, I just took them out this morning to test them (and try some 6P15P-EPs, which were good, but not as good as the EL83s) and they test the same after 500ish hours as when they were new, so I'm pretty optimistic about tube life.
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Marbia
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Re: EL83 = SV83, 6P15P TESLA Ebay  misinformation?
Reply #7 - 09/06/21 at 12:12:49
 
Here is a link to the exact tubes used in the zen triode amp.
I purchased 3 sets for $40, shipped from Russia.

https://tubes-store.com/product_info.php?products_id=74&osCsid=7itkq11p7quh8qcme...
pkutrm8d7
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Lon
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Re: EL83 = SV83, 6P15P TESLA Ebay  misinformation?
Reply #8 - 09/06/21 at 14:42:15
 
I have bought many such tubes from Russia via several merchants. BUT. . . I have never bought a pair that sounds better or lasts longer than a pair that Steve selects and puts through his testing. So though I have about 20 pairs of spares. . . once a year or so I buy a pair from Steve for my Monoblocks and my Taboo amp. They just sound the best and don't fail.
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HR-1,ZTPRE,ZBIT,ZROCK2,SE84UFO3-25th x2, CSP3-25th.Taboo Mk IV; Rega RP3 w all GrooveTracer mods PS Audio: DMP+DSD,P15,NPC,PowerBases,AC-12 pwr cbls, Reference spkr cbls;Mapleshade:Samson V3;;VooDoo:Cremona+Amati intrcncts, Iso-Pods;headphones:PM1,HD800S,ZMF Ori
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CAJames
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"I've run every
red light on memory
lane."

Posts: 294
Re: EL83 = SV83, 6P15P TESLA Ebay  misinformation?
Reply #9 - 09/06/21 at 16:11:39
 
Quote:
Posted by: Marbia

Here is a link to the exact tubes used in the zen triode amp.
I purchased 3 sets for $40, shipped from Russia.

https://tubes-store.com/product_info.php?products_id=74&osCsid=7itkq11p7quh8qcme...



Yes, I have bought tubes from them as well. Note however there are only 2 of the -EV left. FWIW the best sounding 6P15P tubes I've heard in my system are -ER/EP version (yes, better than the Decware tubes) and R is a higher spec than V if you're keeping score, but YMMV of course.
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Lon
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"Love without
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worthless!"
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Posts: 18492
Re: EL83 = SV83, 6P15P TESLA Ebay  misinformation?
Reply #10 - 09/06/21 at 16:38:44
 
I haven't had the same experience with ER versions so I keep using tubes from Steve.
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HR-1,ZTPRE,ZBIT,ZROCK2,SE84UFO3-25th x2, CSP3-25th.Taboo Mk IV; Rega RP3 w all GrooveTracer mods PS Audio: DMP+DSD,P15,NPC,PowerBases,AC-12 pwr cbls, Reference spkr cbls;Mapleshade:Samson V3;;VooDoo:Cremona+Amati intrcncts, Iso-Pods;headphones:PM1,HD800S,ZMF Ori
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Dana
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Posts: 451
Re: EL83 = SV83, 6P15P TESLA Ebay  misinformation?
Reply #11 - 09/06/21 at 19:55:55
 
Here is a link to the exact tubes used in the zen triode amp.
I purchased 3 sets for $40, shipped from Russia.

this link points to

6P15P-EV / EL83 / SV83 tube
Manufacturer:            Reflector

Which are EL83 tubes NOT EL84.

Shouldn't it really be
https://tubes-store.com/product_info.php?products_id=20



AHHHHHHHHH!!!

Do these only work with an adapter?
https://www.ebay.com/itm/274931073802?hash=item40032b430a:g:FMwAAOSwWzxhMN1B

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Tom Waits:
And the newspapers were fooling,
And the ash-trays have retired
'Cause the piano has been drinking,
The piano has been drinking
The piano has been drinking,
Not me, not me, not me, not me, not me
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CAJames
Seasoned Member
****


"I've run every
red light on memory
lane."

Posts: 294
Re: EL83 = SV83, 6P15P TESLA Ebay  misinformation?
Reply #12 - 09/06/21 at 21:32:03
 
No. 6P15P are the tubes used in the UFO amps. That is the real tube designation, they are mislabeled as EL83. 6P14P are EL84 equivalent and will work in UFO amps without an adapter, but not as well.

 
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Dana
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Re: EL83 = SV83, 6P15P TESLA Ebay  misinformation?
Reply #13 - 09/06/21 at 21:51:24
 
THANKS!!!
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Tom Waits:
And the newspapers were fooling,
And the ash-trays have retired
'Cause the piano has been drinking,
The piano has been drinking
The piano has been drinking,
Not me, not me, not me, not me, not me
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