[djork]

Little-Tube-¶ú·Åר°æ-ƽºâ¶ú·ÅV3.0

here..

the philips 6080 tubes they using can be had for cheaply on ebay...

it's funny though, in this prototype they seem to have sliced a tin can into two to house the transformers.

 

[dreamwhisper]

I can't bear to read this whole thread,
has anyone compared the DV 337 and the DV 332?
I heard they were very similar..

 

[nor_spoon]

Oh! That amp looks interesting! Anyone that can translate whats written?

 

[djork]

Quote:

Originally Posted by nor_spoon /img/forum/go_quote.gif Oh! That amp looks interesting! Anyone that can translate whats written?

Which one? you mean the little tube amp link I posted?

 

[nor_spoon]

Quote:

Originally Posted by djork /img/forum/go_quote.gif Which one? you mean the little tube amp link I posted?

Yes. I found the other thread after I posted here.

 

[djork]

4路独立的放大器组成全平衡电路。
fully balanced circuit consisting of a 4 way (?) independent amplifier

采用4连ALPS音量电位器做音量调节。
utilizing 4 ALPS pot for volume control

推KK感觉不错，呵呵。。。
Sounds good when used to push the K1000

 

[nor_spoon]

Nice

 

[dikyllis]

any1 have such problem with their 337?

I can hear radio station signal station when music is low volume, and is even louder when no music and volume knob is '0', I plug out the RCA input cable and there goes the radio station signal.

I have swap/change rca cables, taralabs to diy beldens, all of them doesn't work

I am suspecting my 337 now, any1 have this problem too?

 

[tigerkai]

Hi Guys anyone tried 6528 cause there is a pair in ebay for auction.thinking of bidding, but wonder how to they sound on the DV337?

 

[djork]

i did a little search on head-fi regarding the 6528 tube --> http://www.head-fi.org/forums/f5/zan...40/index3.html

not sure whether do they need some modifications done for it to be used on your darkvoice

 

[Skylab]

Quote:

Originally Posted by tigerkai /img/forum/go_quote.gif Hi Guys anyone tried 6528 cause there is a pair in ebay for auction.thinking of bidding, but wonder how to they sound on the DV337?

It's the 6520 that is more or less equivalent to the 6AS7. I don't think trying the 6528 is a good idea. I have also heard from other people that it's a terrible sounding tube.

 

[tigerkai]

I thought 6528 is basically 2 5998 in parallel,Since 5998 can be used on DV337 why can't 6528?

 

[Skylab]

I have no idea about that, but I do know the 6528 and the 5998 have *very* different electrical properties.

Then there is Mikhail from SinglePower saying they sound bad in the Extreme.

Then there is this from Tubes Asylum:

Quote:

Check your 6528's out thoroughly. If they've been used, they're probably junk. The similar 6336B suffers the same problem. These valves are designed for very high continous current service, and it wrecks (poisons) the cathodes very quickly. Pulled out of the power supplies of military equipment (Usually ground-based avionics-related stuff), they are usually flatter than pancakes! They can make very poor surplus store buys! They have prodigious filament requirements, 5.0A @ 6.3V which make filament powering pretty expensive & bulky. I think it is a great audio tube, but definitely not for beginners. It is high-current/low impedance, hardly ideal for SET use. And it really comes into it's own if you put some real feedback around it. It sounds much more like a DHT than the indirectly-heated beast it really is. It has outrageous transconductance, about triple that of an EL34 PER SECTION.

With 5998's sounding so excellent, and so readily available at under $20 each, I cannot imagine why anyone would want to mess with a 6528 in this amp.

 

[djork]

5998 for under 20? I'd seriously like to give it a try. Where do you get yours?

 

[Skylab]

I have seen a bunch sell on EBay recently for under $20, or you can get NOS ones from Antique Electronic Supply for $27 each.