2359glenn | studio
Aug 31, 2012 at 7:36 PM Post #721 of 39,986
Glenn, Xcalibur255, Clayton SF and john57, what is your favorite combo?
 
 
596 - TSBGRP
596 - 1633
596 - 13D1
5U8 - TSBGRP
5U8 - 1633
5U8 - 13D1
 
Aug 31, 2012 at 7:58 PM Post #722 of 39,986
While the 3DG4 may not have the best sound-stage it does have one of the best clarity of sound and the soundstage is not bad at all with carefully done recordings. Many recording artists today tend to over mic the recordings. The 5692 and the round 6F8G for the drivers and the TS, Bendix and the GE (good value) for power.
 
Aug 31, 2012 at 8:01 PM Post #723 of 39,986
3DG4
5998
13D1
 
In my 2A3 SRPP OTL I use the 5U8 because the B+ is 500 volts so each 2A3 can have 250 volts and the rectifier has to have
twice the B+ breakdown voltage and the 3DG4 can't handle this high voltage but the 5U8 can handle 1700 volts.
 
Aug 31, 2012 at 8:07 PM Post #725 of 39,986
Quote:
While the 3DG4 may not have the best sound-stage it does have one of the best clarity of sound and the soundstage is not bad at all with carefully done recordings. Many recording artists today tend to over mic the recordings. The 5692 and the round 6F8G for the drivers and the TS, Bendix and the GE (good value) for power.

 
Interesting. Inside my listening room, the '596' has more clarity...everything over the 3DG4. But, of course, our systems are different among other things.
 
Aug 31, 2012 at 8:09 PM Post #726 of 39,986
Quote:
Quote:
Glenn, Xcalibur255, Clayton SF and john57, what is your favorite combo?

5U8 - GE 6AS7 - CBS 6SN7 (RCA?)
596 - GE 6AS7 - OMEGA 6SN7
3DG4 - GE 6AS7 - OMEGA 6SN7

 
I'm really liking the Russian rocket...took me by surprise! 
biggrin.gif

 
Aug 31, 2012 at 8:10 PM Post #727 of 39,986
Well let me ask this, anyone's preference change from the OTL being in stand alone mode versus being used as a Preamp?
 
Aug 31, 2012 at 8:12 PM Post #728 of 39,986
Quote:
3DG4
5998
13D1
 
In my 2A3 SRPP OTL I use the 5U8 because the B+ is 500 volts so each 2A3 can have 250 volts and the rectifier has to have
twice the B+ breakdown voltage and the 3DG4 can't handle this high voltage but the 5U8 can handle 1700 volts.

 
The more you post, the more I learn...
 
Aug 31, 2012 at 8:31 PM Post #729 of 39,986
I really don't use it as a preamp I have a stand alone preamp that uses #26 tubes I feel the #26 direct heated triode sounds better then any 6SN7.
Now All my amps are all direct heated triodes I just love the sound of these tubes. They are a PITA to work with but it is worth the hassle.
 
Aug 31, 2012 at 8:34 PM Post #730 of 39,986
Quote:
I really don't use it as a preamp I have a stand alone preamp that uses #26 tubes I feel the #26 direct heated triode sounds better then any 6SN7.
Now All my amps are all direct heated triodes I just love the sound of these tubes. They are a PITA to work with but it is worth the hassle.

 
Well, you're gonna have to help get me some DHT love, man! Can I see a pix of your Pre?
 
Aug 31, 2012 at 8:41 PM Post #731 of 39,986
Quote:
3DG4
5998
13D1
 
In my 2A3 SRPP OTL I use the 5U8 because the B+ is 500 volts so each 2A3 can have 250 volts and the rectifier has to have
twice the B+ breakdown voltage and the 3DG4 can't handle this high voltage but the 5U8 can handle 1700 volts.


Heheh, so I did get you on the 5998 bandwagon after all. 
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  It's such a shame people don't know how good this tube can really sound compared to the 6AS7 when it isn't starved of plate current.
 
Aug 31, 2012 at 8:45 PM Post #732 of 39,986
Quote:
Glenn, Xcalibur255, Clayton SF and john57, what is your favorite combo?
 
 
596 - TSBGRP
596 - 1633
596 - 13D1
5U8 - TSBGRP
5U8 - 1633
5U8 - 13D1


Gotta say 3DG4 - 5998 - TSBGRP.  My second choice of driver is still my Sylvania GT military plate heavy chrome top.  People who walk by this tube thinking they are GTA by mistake don't know what they are missing.  After that I would have a genuinely hard time picking a 3rd place tube.  The Brimar 13D1, Hytron GT, and Sylvania Bad Boy are all excellent and bring their own unique charm to the table.
 
I agree with john, the 3DG4 does not throw the biggest soundstage, sometimes I wish it were bigger, but it excels in many other things and has such great transparency.  If I could take this tube and give it the soundstage of a 274B it would be perfection in my opinion.
 
The driver is really the only tube I roll in my amp, I just don't feel the need to mess with the others ever.
 
Aug 31, 2012 at 9:10 PM Post #734 of 39,986
Quote:
Quote:
Glenn, Xcalibur255, Clayton SF and john57, what is your favorite combo?
 
 
596 - TSBGRP
596 - 1633
596 - 13D1
5U8 - TSBGRP
5U8 - 1633
5U8 - 13D1


Gotta say 3DG4 - 5998 - TSBGRP.  My second choice of driver is still my Sylvania GT military plate heavy chrome top.  People who walk by this tube thinking they are GTA by mistake don't know what they are missing.  After that I would have a genuinely hard time picking a 3rd place tube.  The Brimar 13D1, Hytron GT, and Sylvania Bad Boy are all excellent and bring their own unique charm to the table.
 
I agree with john, the 3DG4 does not throw the biggest soundstage, sometimes I wish it were bigger, but it excels in many other things and has such great transparency.  If I could take this tube and give it the soundstage of a 274B it would be perfection in my opinion.
 
The driver is really the only tube I roll in my amp, I just don't feel the need to mess with the others ever.

 
I have to say, my 5998's are holding on! 
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 For me, the sound stage of the 3DG4 is what it is; not particular put off by it. This tube shows great promise. But in my system, the USAF-596 has more clarity. I'm sure there's an electronic influence floating about my system...but the 3DG4 lacks the refinement of the '596' to my ears. Perhaps, the brand I have? Maybe I'll buy another and give it shot. If you all are on to something, I'm not gonna wanna miss out! 
wink_face.gif

 
Yeah, I don't bother rolling out the 5998's anymore...the best in their slot!
 

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