[gibosi]

It seems that you bought the correct parts, so it must be something else..... Double check all your connections and when you get a pair of 6SN7, see if the same thing happens. And good luck!

 

[Gezzaman]

I just ordered some 6SN7, hope they work...
 
just FYI the 6AS7 tubes i bought were these
 
http://www.ebay.com/itm/111600090554?_trksid=p2060353.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT
 
these SHOULD of worked on the modded LD3 ye? 

 

[gibosi]

Yes, the Russian Svetlana 6N13S are plug-in replacements for the 6AS7G. So it shouldn't make any difference if you use these or a pair of RCA 6AS7G.

 

[WilliamLeonhart]

Ordered a pair of un-notched Voshs and RTC 5654 yesterday. This will be the first time I've got new tubes since the 6hm5 of a year ago. Can't say how excited I am. 

 

[ls2gto]

Just ordered the mullard ef92 m8161's. What's the typical burn in for these, and tips with how long to leave the little dot on at a time while burning them in? Also thanks to everyone in this thread for all of the info! Looking forward to tube rolling.

 

[MIKELAP]

  Just ordered the mullard ef92 m8161's. What's the typical burn in for these, and tips with how long to leave the little dot on at a time while burning them in? Also thanks to everyone in this thread for all of the info! Looking forward to tube rolling.

If i remember correctly 50 hours should be enough .And manufacturer says not to leave amp on more than 8 hours .Personnally i never leave my tube amps on when im not there .better safe than sorry .

 

[gulakpi]

I do not leave my Mk4 on when not in use.  Mike is right!  Better safe than sorry!
However, I once or twice forgot to switch it off and left it on for 24 hrs.  No harm done and the LD is barely warm!  
The LD's are ruggedly built and I knew someone who left it on for over a week for "better sound".  I cannot hear a significant difference in SQ once the amp is on for more than 30 minutes. YMMV!

 

[WilliamLeonhart]

I forgot and left my I+ on for about 15 hours (including the time I spent on listening during the evening). Thankfully it survived but I'm never careless like that again

The tubes benefit from burn-in but I don't believe the samething happens to the amp itself.

 

[Wreckgar7]

Can i use the 6SL7 in the 6SN7 adapter without any external power source? If so, is the SL better then the SN?
And how about the ECC32?
 
Which 6sn7 tubes are recommended?
Btw, im planning on using these as powertubed

 

[Gezzaman]

  It seems that you bought the correct parts, so it must be something else..... Double check all your connections and when you get a pair of 6SN7, see if the same thing happens. And good luck!

 
The 6N8S i bought just arrived, The rig fully works now! finally, been waiting so long for audio bliss
 
Still confused as to why the 6N13S didnt work...

 

[Gezzaman]

  Can i use the 6SL7 in the 6SN7 adapter without any external power source? If so, is the SL better then the SN?
And how about the ECC32?
 
Which 6sn7 tubes are recommended?
Btw, im planning on using these as powertubed

 
If you are planning on using 6SN7 as powertubes then yes you need an external heater. 

 

[MIKELAP]

 

  Can i use the 6SL7 in the 6SN7 adapter without any external power source? If so, is the SL better then the SN?
And how about the ECC32?
 
Which 6sn7 tubes are recommended?
Btw, im planning on using these as powertubed

 
If you are planning on using 6SN7 as powertubes then yes you need an external heater. 

Only need 6CG7 TO 6SN7adapter to use 6SN7 as power tubes                       http://www.ebay.com/itm/221065459067?_trksid=p2055119.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT

 

[gibosi]

   
The 6N8S i bought just arrived, The rig fully works now! finally, been waiting so long for audio bliss
 
Still confused as to why the 6N13S didnt work...

 
The fact that the 6N8S work seems to indicate that you did everything right. As to why the 6N13S didn't work, we simply don't have enough data. If you stumble across a pair of inexpensive RCA 6AS7, I would encourage you to give them a try to see what happens.
 
Cheers 

 

[i luvmusic 2]

I have no clue why this  MK III makes my Kenwood KM-992 humming.Any suggestions from folks using their LD amps as a PRE-AMP?

 

[Gezzaman]

   
The fact that the 6N8S work seems to indicate that you did everything right. As to why the 6N13S didn't work, we simply don't have enough data. If you stumble across a pair of inexpensive RCA 6AS7, I would encourage you to give them a try to see what happens.
 
Cheers 

 
When i try plug the 6N13S tubes in, the LED light on my transformer and the buck converter nearly turns off (like power is being drawn heaps) and emitts a very high pitched sound.

When i plug the 6SN7 in the same adapters, the LED lights just dim a little and slowly goes back to full brightness and no high pitch sound.