[TrollDragon]

Gotta love a tube amp with an OLED screen....
 
Now there is a nightmare for matched quads of 6550's

 

[Radio_head]

  Nah, that's plain and busy, typical DIY black box amp.
 
If you want a really great DIY amp, here's a custom tube amp for Grado HP2's. It's italian.
 

 

 

 

 

 
 
 
 

Any more info/links on this amp?  Looks great, fits the look of the HP-2 so well.

 

[bmichels]

Another Beauty...
 
 

 

[eugenius]

  Any more info/links on this amp?  Looks great, fits the look of the HP-2 so well.

 
It's an 8000 euro hybrid amp, one of those high end parts fests:
http://www.olimpiaudio.com/Prodotti/StatoSolido/Aufidio.html

 

[TrollDragon]

  Another Beauty...
 
 

Love the looks of the Dragon... A member of the DT880 thread has one and I guess it is just sweet!

 

[groovyd]

is that big fat tube on the right a power supply rectifier or the power output tube?  does the same tube handle both left and right channels or are those smaller tubes for the audio?

 

[Sko0byDoo]

  is that big fat tube on the right a power supply rectifier or the power output tube?  does the same tube handle both left and right channels or are those smaller tubes for the audio?

 
http://www.head-fi.org/t/737872/new-dragon-inspire-iha-1-tube-headphone-amp-exclusive-listen-at-rmaf2014
 
The big fat tube is Sofia 274B rectifier.  The smallers are 6SN7s.  Looks like OPT coupled (two trannies in the back, the other is power tranny).  Dennis mentioned "direct-coupled" in the video.  I'm guessing it's either (6SN7s are dual triodes):
 
1.  A similar topology like direct reactance drive (DRD)
2.  Single-stage, parallel
3.  Single-stage, push-pull (SE opts)
 
Anyone else can shed some light on this?    

 

[smial1966]

Sko0byDoo,
 
Moon Audio are the retailers for this Dennis Had design and are selling the `Dragon' version pictured. http://www.moon-audio.com/dragon-inspire-iha-1-tube-headphone-amp.html
 
The Dragon variant is an upgraded version of this amp - http://www.ebay.co.uk/itm/TUBE-HEADPHONE-AMPLIFIER-INSPIRE-by-DENNIS-HAD-6SN7-SINGLE-ENDED-Class-A-Amp-/151447573385?pt=Vintage_Electronics_R2&hash=item2342fa9389 - which Dennis sells direct on eBay.
 
Dennis Had founded Cary Audio and designed many of their renowned tube amplifiers, so he definitely knows his thermionic stuff! 
 
Quote:

   
http://www.head-fi.org/t/737872/new-dragon-inspire-iha-1-tube-headphone-amp-exclusive-listen-at-rmaf2014
 
The big fat tube is Sofia 274B rectifier.  The smallers are 6SN7s.  Looks like OPT coupled (two trannies in the back, the other is power tranny).  Dennis mentioned "direct-coupled" in the video.  I'm guessing it's either (6SN7s are dual triodes):
 
1.  A similar topology like direct reactance drive (DRD)
2.  Single-stage, parallel
3.  Single-stage, push-pull
 
Anyone else can shed some light on this?    

 

[groovyd]

   
http://www.head-fi.org/t/737872/new-dragon-inspire-iha-1-tube-headphone-amp-exclusive-listen-at-rmaf2014
 
The big fat tube is Sofia 274B rectifier.  The smallers are 6SN7s.  Looks like OPT coupled (two trannies in the back, the other is power tranny).  Dennis mentioned "direct-coupled" in the video.  I'm guessing it's either (6SN7s are dual triodes):
 
1.  A similar topology like direct reactance drive (DRD)
2.  Single-stage, parallel
3.  Single-stage, push-pull
 
Anyone else can shed some light on this?    

That rectifier sure looks like it can do something a mosfet or diode can't.

 

[TrollDragon]

 
That rectifier sure looks like it can do something a mosfet or diode can't.

The 274b puts out 200 mA of beautiful glowing rectification for $210
 
 
Or one of these 1-1/2 A chummies for a $1.50

 
Just no where near the same effect... 

 

 

[zorin]

Jadis I-35
 

 
 
Jadis Orchestra Reference Integrated Amplifier 
 

 
 
Jadis JA-500   
 

 

 

 

 

 

   

 
http://www.jadis-electronics.com/fr/
 
 
P.S. I found a picture of over 100 000 dollars turntable, it does not belong on this thread but does anybody want to see it ? If yes I'll post it up.

 

[Stereolab42]

Open-air capacitors? That's new.

 

[bmichels]

SteamAmp II from Copperstream
 
The amp puts out 8 watts per channel. The tubes are 10GV8 Triodes in push-pull configuration.
 

 
Gorgeous isn't it ? 

 

[CJG888]

Looks like something that came out of a brewery...

 

[qveda]

Looks like something that came out of a brewery...

or an espresso shop     pretty cool