[Zeejet]

Thanks for all the tips! I will try this out when I leave for work every morning until I log enough hours. 

 

[buldogge]

Trying some GE 6EW6 out right now...first impressions are pretty good...nice full sound...slightly strong mids.
 
Think I'll try the Tung Sol 6CB6As next...
 
-Mark in St. Louis

 

[MIKELAP]

  Thanks for all the tips! I will try this out when I leave for work every morning until I log enough hours. 

Personnally i would not leave amp on  all day if there's nobody in the house you never know ,second when your burning in amp plug in  an old pair of HP if a tube or anything else would happen its not going to be your best pair of HP that will go up in smoke, just my two cents

 

[Acapella11]

Re 6SN7 vs 5687 power tubes:
 
Just comparing Sylvania 6SN7WGT and Tung Sol 6587 WA: I am starting to believe that the reason why the 5687 sounds more vibrant at least partially is because it drives the HD800 better than the 6SN7WGT. I am going to look into this more next week but using the 5687WA certainly has its advantages.

 

Originally Posted by Zeejet 
 
Thanks for all the tips! I will try this out when I leave for work every morning until I log enough hours. 

 
I have run the LD MKIII at RT in a non-cluttered space all day without issues, even though it was suggested to operate it only 8 h without interruption.

 

[Rossliew]

  Personnally i would not leave amp on  all day if there's nobody in the house you never know ,second when your burning in amp plug in  an old pair of HP if a tube or anything else would happen its not going to be your best pair of HP that will go up in smoke, just my two cents

 
 

  I have run the LD MKIII at RT in a non-cluttered space all day without issues, even though it was suggested to operate it only 8 h without interruption.

 
I dare not leave it on all day for fear of something shorting in the circuitry thereby causing a fire...

 

[Shrew]

Hello, I recently purchased a Little Dot MKIII using the (6H30) and (M8100 / CV4010) tubes. I find the treble a bit harsh and grainy? As well as the instrument separation lacking behind the Magni. Which tubes give the best instrument separation/detail and smooth treble?
 
I was looking into the Mullard M8161/CV401 how are those compared to the M8100? I know I'd have to change the jumpers.
 
What else should I look into?

 

[gibosi]

  Hello, I recently purchased a Little Dot MKIII using the (6H30) and (M8100 / CV4010) tubes. I find the treble a bit harsh and grainy? As well as the instrument separation lacking behind the Magni. Which tubes give the best instrument separation/detail and smooth treble?
 
I was looking into the Mullard M8161/CV401 how are those compared to the M8100? I know I'd have to change the jumpers.
 
What else should I look into?

 
It has been a very long time since I listened to these tubes, but as best as I can remember, the M8161 (EF92) is a bit warmer and smoother than the M8100 (EF95 / 6AK5), so it might do the trick. I would also suggest the 6HM5. There are two versions of this tube, one short and squat and the other tall. Go for the tall ones. Sylvania and GE are good, as are Ei, which were manufactured in Yugoslavia.

 

[Shrew]

   
It has been a very long time since I listened to these tubes, but as best as I can remember, the M8161 (EF92) is a bit warmer and smoother than the M8100 (EF95 / 6AK5), so it might do the trick. I would also suggest the 6HM5. There are two versions of this tube, one short and squat and the other tall. Go for the tall ones. Sylvania and GE are good, as are Ei, which were manufactured in Yugoslavia.

 
I can't find anything on the 6HM5 tube, was it a typo or are they extremely rare?

 

[gibosi]

   
I can't find anything on the 6HM5 tube, was it a typo or are they extremely rare?

 
http://www.radiomuseum.org/tubes/tube_6hm5.html
 
It is not a typo and it is not rare. In fact is is cheap and fairly plentiful.
 
http://www.ebay.com/sch/i.html?_from=R40&_sacat=0&_nkw=6hm5&rt=nc&LH_PrefLoc=2
 
In my opinion it is better than either of the Mullards above and it is cheap. However not many people outside of Headfi know about this tube.  Set your LD for EF95 tubes and you are good to go.

 

[TrollDragon]

   
I can't find anything on the 6HM5 tube, was it a typo or are they extremely rare?

Like gibosi says the 6HM5 is not a typo but an excellent tube!
 

4 Excellent Yugoslavians came to live in NS via PQ!
 

Loaded up as driver tubes powering my T50RP's

 

[Shrew]

Well the price is certainly enticing. Do driver tubes need to be matched? Might go with this and see if it increases the instrument separation and make the treble less harsh.

 

[TrollDragon]

  Well the price is certainly enticing. Do driver tubes need to be matched? Might go with this and see if it increases the instrument separation and make the treble less harsh.

LD amps do not require matched tubes.

 

[Shrew]

Should I buy the 6HM5 from thetubestore.com (they don't even tell you what brand or style it is short/tall) or just buy two different 6HM5 tubes from ebay? I don't see any matched pairs or sellers selling 2 in the States.

 

[TrollDragon]

I would just order some from this auction here, many of the people in this thread have bought from this seller.
http://www.ebay.com/itm/6HM5-6HA5-EC900-export-quality-audio-triode-tube-NOS-FREE-SHIPPING-/300879467071
 
Make him an offer, you might be able to get them for $6 each.

 

[gibosi]

  Should I buy the 6HM5 from thetubestore.com (they don't even tell you what brand or style it is short/tall) or just buy two different 6HM5 tubes from ebay? I don't see any matched pairs or sellers selling 2 in the States.

 
If the tubestore can't even tell you if they are short or tall, then no, I would not encourage you to purchase from that vendor....
 
But a question? Why the apparent aversion to foreign sellers?  For many here, the Yugoslavian Ei tubes purchased from Serbian vendors have been excellent buys....