[Frank I]

I am using Mullard 850 which is smooth detailed with great soundstage. Next up is Mullard CV4010 almost same signature. RCA commands also nice all without using jumpers.

 

[jjsoviet]

What are the jumper switches anyway? Those small things underneath the amp? So... I must switch them all off for new tubes to work? Sorry for my ignorance.

 

[sobi123]

Quote:

Originally Posted by page28 /img/forum/go_quote.gif I have been given a box of valves by a neighbour, Mostly TV stuff but there were a couple of Brimar 6AM6 (cv138) (these give really solid Bass), some Zaerix 12au7's , some Marconi ECC804 (6/30l2) and a pair of Mullard E88CC 's both the latter look to be pin compatable with the 6N6 power tubes. Has anyone tried them out ?

Does E88CC work in MK III ? I've heard some really good things 'bout phillips

 

[CooLy_oNE]

I'm new to the tube...so for different sound signature we only change the driver tube? how about the power tube?

and how do I know which tube is compatible with my MK 3?
 
Thanks

 

[Frank I]

The 6H30 Sovtek super tube is a major improvement. I use a matched pair in my MK11 and it was a big improvement. 

 

[CooLy_oNE]

any website I could get tubes besides ebay?
 
any my LD 3 is not bought from davidzhe on ebay...and I email him, and he said that mine is not covered by warranty...
got it from like ebay seller from hongkong? is there any experience about fake LD 3? I just afraid I got a bad item...

 

[Frank I]

Quote:

any website I could get tubes besides ebay?
 
any my LD 3 is not bought from davidzhe on ebay...and I email him, and he said that mine is not covered by warranty...
got it from like ebay seller from hongkong? is there any experience about fake LD 3? I just afraid I got a bad item...

Jim Mcshane in Chicago has matched tubes great reseller you can get his address from audio asylum web page or Google

 

[CooLy_oNE]

I just got my M8161..question how do I set the jumper? should I take it off? what should I do? the manual only say bridge and I have no idea what it means...
 
If I do not set it up correctly, will it like explode? or just won't play a sound?
 
 
Thanks

 

[PabloDiner]

is adjusting the gain necessary with each set of tubes? just ordered a MKIII and am looking into all the information available, cant wait.

 

[PabloDiner]

And on the Little Dot forum page it says they offer an upgrade over the stock tubes to a CV4010 for 35 bones, are these a decent price per sound quality?  I decided to stick with stock so i can hear the differences evolve at a later time instead of starting out with heralded tubes.

 

[CooLy_oNE]

they overchaged for the CV4010 tube...you can buy it from ebay or other seller for 40% cheaper...actually I have 2 spare of CV4010, never used...PM me if you interested

 

[jjsoviet]

I'm still confused as to what good tubes would best suit my system. I would prefer a more detailed, high-impact sound signature without sacrificing the warmth of my LD MKIII. Any recommendations would be really appreciated.
 
BTW, it may be a stupid question, but which pairs of tubes are the ones you generally swap out? There are the power tubes and the driver tubes, so I guess all of these could be upgraded?

 

[PabloDiner]

Quote:

I'm still confused as to what good tubes would best suit my system. I would prefer a more detailed, high-impact sound signature without sacrificing the warmth of my LD MKIII. Any recommendations would be really appreciated.
 
BTW, it may be a stupid question, but which pairs of tubes are the ones you generally swap out? There are the power tubes and the driver tubes, so I guess all of these could be upgraded?

I have also been doing a lot of reading in the last few days as i just ordered a MKIII, and from what i understand the larger power tubes are generally a lot more complicated to swap out, dealing with resistance. While the driver tubes (smaller ones obviously) if they are compatible with the MKIII (including the EF92, CV131, WE403A/B, GE5654, M8100, CV4010, EF95, 6JI as well as all equivalents) can be swapped right out with or without using the bridges for specific tubes. So to answer your question i suppose yes they can all be upgraded, but the screwing with the Power tubes without knowing what your doing could potentially harm the amp

 

[jjsoviet]

I see. What would be the perfect driver tubes that match my criteria for sound quality without me having to change any settings? I've read that some tubes need some switches changed which I fear I might screw up. Thank you in advance.

 

[morfic]

Quote:

is adjusting the gain necessary with each set of tubes? just ordered a MKIII and am looking into all the information available, cant wait.

No.