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Tubes for 25th (Read 867 times)
Palomino
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Tubes for 25th
12/27/18 at 18:32:15
 
What's everyone using?

Most interested in rectifier/input tubes.

Interested in impressions on the Psvane 4U4G that comes in the tube compliment.
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Lon
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Re: Tubes for 25th
Reply #1 - 12/27/18 at 18:38:20
 
I've the Monoblocks, tube use would be similar, so I'l weigh in, though the voltage regulation tubes are different. As for common tubes I'm using the Sophia Electric Aqua 274B rectifier, the power tubes Steve supplies, and Amperex 7308. I've fiddled for months but this is what I've come back. (So far for regulation tubes I'm using OD3W and the stock OC2).

In these components every tube tells a story that is interesting to hear.

Do you have one on order Tom?
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Palomino
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Re: Tubes for 25th
Reply #2 - 12/27/18 at 18:59:12
 
Yes.  I came back from the fest and ordered one.  I heard things in the amp that I havenít heard in other Decware amps.

Itís a stretch for me (especially this year) so I am parting with some equipment.  I sold my trapeziums (mistake) and will also sell one of my Rachaelís and a couple of power plants (premiere and 300).  All of these are not getting any use so I am trying to let go.
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Showme
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Re: Tubes for 25th
Reply #3 - 12/27/18 at 20:17:23
 
It was not a mistake to sell the Traps to me. I love them and plan I visiting them army cabin this weekend.  Thanks.
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Lon
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Re: Tubes for 25th
Reply #4 - 12/27/18 at 20:22:25
 
You're going to love the 25th Anniversary. And I hear you about selling excess. I sold a Torii Mk II and a CSP2+ this month. I need to sell another CSP2+ and a Torii Mk III, and probably my Traps as well. . .hard to part with these things but what the heck, they do no good sitting around.

Best of luck, and welcome to the wait, I'm waiting too.
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Palomino
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Re: Tubes for 25th
Reply #5 - 12/27/18 at 21:23:21
 
Glad you are enjoying them.  At least they are getting some use.  I used them for a desktop setup and in my cottage for a month or two but other than that they didnít see much action. I talked with Bob about making a horn base for them to make them like a floorstander but never got around to it.

I still ha e the first amp and speakers I bought I high school.  Turntable and tuner I bought in college. Reel to reel. Cassettte player, etc. Parting with stuff is hard for me.
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JOMAN
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Re: Tubes for 25th
Reply #6 - 12/28/18 at 03:25:35
 
Second the Sophia Electric Aqua 274B and thatís a given for me now.  The power tubes are stock and the input tube Iím using is a Telefunken PCC189.  The VR Tubes are a pair of CEI OA3 and a Sylvania OD3W.  The VR tubes made more of a difference than I though they would.  

As I rolled I also rolled the input tube in my CSP3.  You can really fine tune to your liking, hard to go wrong with the UFO25. I think youíll be surprised.
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Palomino
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Re: Tubes for 25th
Reply #7 - 12/28/18 at 13:08:52
 
At the fest the combo I listened two was a type 80 rectifier with the standard power tubes and a 6N5P input tube (I think).  For the input VR tube I liked the middle tube in the set that Steve sells.  A  VR105, I think.

I have all these except the type 80 rectifier.

On hand I have some cryoíd 274B and some RCA 5U4G.  I use both in my Rachaelís and Torii.  I keep coming back to the 274B in the Rachael for punch and definition.


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Lon
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Re: Tubes for 25th
Reply #8 - 12/28/18 at 13:40:17
 
I've used several types of Type 80 tubes in the 25th Anniversary amps (and Decware preamps and Torii and Taboo amps). They're very nice but ultimately I feel they are a bit too "romantic" and make the sound a bit claustrophobic.

If you like the Valve Art 274B I think you would LOVE the Sophia Electric Aqua 274B. Interestingly it too is a 4 pin tube but does not need an adaptor in our amps. It has all the qualities of the Valve Art cryo'd but is more . . . refined is perhaps the best word, controlled is perhaps a fitting word. The treble is freer of grain, the midrange is exceedingly open and the bass is deep and tight. They're expensive. . . but I bet they last for years and in these Anniversary amps they're worth the cost for what they bring. The Anniversary amps show you so much that I keep futzing with them, and I've rolled five tube types in them and different brands of most all the tube types and keep coming back to these Aquas. They give the best to the input and voltage tube choices in my experience, a stable clear platform for the rest of the complement.

And after a few decades of preferring the Svetlana SV83s to the military type, I've come to the conclusion that Steve's tested and matched red-tipped tubes are the best option so I'm just sticking with those and will order more pairs from him (though I have about 25 pairs of other types on hand!)
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JOMAN
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Re: Tubes for 25th
Reply #9 - 12/28/18 at 16:18:30
 
Concur with Lon in all cases.  I too have tried a variety of Type 80ís... Majestic Globe, Cunningham Globe, RCA Globe and a variety of ST types and for the same reason as Lon pointed out I have settled on the Aqua 274B.

The input VR tube that is supplied is an OD3/150.  I canít say what was in the UFO25 that you auditioned but the OC3/105 is also supplied.  I now have the Sylvania OD3W/150 in the VR input position after having a Sylvania OC3/105 and an Raytheon OC3W/105 in that slot.

It was Lon that put me onto the CEI OA3 GT and these ended up being my preference.  I believe that these are Raytheon VR tubes.  I picked a spare set of CEI and just now some Raytheons, more than what I need but not much choice in the matter and at the price of $6.00 per wasnít going to sweat it.  After all one never knows when one may pick up a second UFO25 Wink.



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Acetone
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Re: Tubes for 25th
Reply #10 - 12/29/18 at 16:32:38
 
Palamino,  I'm using either Mullard or telefunken PCC189 inputs. Mullard GZ32 or Philips 5R4GYS (from upscale audio). They are all great tubes. Everything I put in the 25th sounds good with subtle differences (all NOS).
But, I've settled on the Mullard PCC189 and GZ32 for the last 3 weeks and am getting consistently amazing sound day in and day out. Might just go back to the TF for final comparison!
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Palomino
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Re: Tubes for 25th
Reply #11 - 12/29/18 at 18:10:46
 
Great suggestions guys. Thanks.

A little over a month to go.
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Lon
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Re: Tubes for 25th
Reply #12 - 12/29/18 at 18:48:15
 
I hope. Seems to me that the waiting is going to be longer this time. . . .
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Palomino
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Re: Tubes for 25th
Reply #13 - 01/02/19 at 17:15:30
 
Making progress...

I got a very nice gift card from an employee so I ordered an Aqua. †I should have it this week and can test it in my Rachael.



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Lon
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Re: Tubes for 25th
Reply #14 - 01/02/19 at 18:51:04
 
Very nice! I'm sure you'll report your findings. I think you'll love it.
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Palomino
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Re: Tubes for 25th
Reply #15 - 01/03/19 at 15:40:49
 
Very impressed with this rectifier.  

Not many hours yet but its very refined and open.  

Had it not been for the gift card I probably would not have spent this much on a rectifier, but after hearing it I think its a good investment.  

Very interested in hearing this on the 25th.
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Lon
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Re: Tubes for 25th
Reply #16 - 01/05/19 at 18:56:51
 
Great news! I imagined you would find it great in the Rachael and I bet it will really bring out the best in the 25th. I know they really sing in my Monoblocks.
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HockessinKid
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Re: Tubes for 25th
Reply #17 - 01/05/19 at 19:20:12
 
Absolutely love the Sophia Aqua 274b rectifier in my CSP3-25 preamp. It displaced my go to NOS 1958 Mullard GZ32 which was no slouch. I hope it has a long life😊.

HK

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Palomino
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Re: Tubes for 25th
Reply #18 - 01/09/19 at 01:20:04
 
One of the attributes I appreciate most about this rectifier is the pop the low bass has. Like the kick drum.  It helps to drive a lot of songs forward and increases the engagement.  

Some of the best bass and kick drum separation I have heard.  

I am now experimenting with input tubes.   Iíll have to start over with the 25th but some of what I like may translate.
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Lon
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Re: Tubes for 25th
Reply #19 - 01/09/19 at 01:35:25
 
Yes. I've gotten a "warmer" version of that "pop" with the 5V4G "bottle-shaped" rectifiers before I came across the Aqua, but the Aqua is without a warm signature and so seems to kick a bit more. There's a full-spectrum midrange clarity to the Aqua that allow this sort of precise dynamic detail to come through.

With my 25th Anniversary Monoblocks using an OD3W instead of an OA3 really helps this sort of clear impact. Having an Amperex 7308 as the input tube gives just a hint of richness that keeps the whole complement from being just a tad lean in my system.
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Palomino
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Re: Tubes for 25th
Reply #20 - 01/09/19 at 01:44:42
 
Iím starting out with an OA3 because I liked that sound at Decfest but those tubes are easy enough to find.

I agree with you on the midrange clarity.  It can almost be a little intense for lack of better words.  Not to be confused with midrange glare.  It has me wondering about input tube pairing.  Now that the rectifier has a little more time on it Iíll start experimenting.
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JOMAN
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Re: Tubes for 25th
Reply #21 - 01/10/19 at 12:20:15
 
I would agree with Lonís take on the OD3W and for the cost of these I think that you would find them to be an interesting experience if nothing else.

In the rear position of my UFO25 I am using OA3ís.  In the front position I have found that rolling these VR tubes along with the input tube can allow one to fine tune to pretty much exactly what one wants.

I have tried OC3ís, and ended up using a Sylvania JAN Navy OC3 for a time rolling different input tubes of the PCC88 variants.  Then tried a Raytheon OC3W and for me they were a little too meaty.  Next I tried a Sylvania OD3W and these along with a TF PCC189 were tight a little too tight but man the tonality across the spectrum and the detail from bass to highís was staggering.  I was able to moderate the ďtightnessĒ of that combination by rolling the input tube in my CSP3.

My personal preference, and this is strictly personal preference, seems to cause me to flirt with having a result that can be a little too tight and/or a little too ďleanĒ.  With the UFO25 and CSP3 Iíve been able to get it just right.

Unfortunately, my system is down right now until I get my ZR2 back with both the A-mods.  Canít stand to be with out it.
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Palomino
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Re: Tubes for 25th
Reply #22 - 01/18/19 at 18:07:37
 
Are the OD3W tubes the ones mostly covered by bakelite?

https://www.ebay.com/itm/Radio-Tubes-0D3W-0D3-VR150-30-Marshall-JAN-CCSB-NOS/350...

Also, the Aqua has improved with time.  Mellowed but still has good punch.  I also went to a kinder, gentler input tube with it which helped.
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Lon
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Re: Tubes for 25th
Reply #23 - 01/18/19 at 19:06:33
 
Yes Tom, that's the tube type. Pretty heavy duty!
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Palomino
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Re: Tubes for 25th
Reply #24 - 01/18/19 at 19:47:21
 
Thanks  Tube rolling fun.  I am due to go on the bench next week (I hope).
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Lon
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"Love without
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Re: Tubes for 25th
Reply #25 - 01/18/19 at 19:53:11
 
I hope so, looks possible. My first order is only 25 "New" away. . . LOL.
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Palomino
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Re: Tubes for 25th
Reply #26 - 01/18/19 at 20:44:43
 
I just got the notice that its On Bench.  I don't know what the lag is but maybe 1-2 weeks.
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Lon
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Re: Tubes for 25th
Reply #27 - 01/18/19 at 20:47:25
 
Good news!
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