[Sonic Defender]

@Liu Junyuan, looks like my 5998s are in Montreal so they should be delivered Monday. I know these aren't an exotic tube, but I have a set of JAN Phillip's 6080WC in the 339 now and they seem pretty nice. Has anybody else by chance tried these tubes and what did you think of them? They seem to be lighter in the bass than either my RCA or Mullard 6080.

 

[Ultrainferno]

  @Liu Junyuan, looks like my 5998s are in Montreal so they should be delivered Monday. I know these aren't an exotic tube, but I have a set of JAN Phillip's 6080WC in the 339 now and they seem pretty nice. Has anybody else by chance tried these tubes and what did you think of them? They seem to be lighter in the bass than either my RCA or Mullard 6080.

 
I do have some Thomson 6080wa with copper rods, they're cheap and sound really good. The RCa and Mullard are known for the way they portray bass, so that could very well be.

 

[Sonic Defender]

   
I do have some Thomson 6080wa with copper rods, they're cheap and sound really good. The RCa and Mullard are known for the way they portray bass, so that could very well be.

Yes, stupidly good value for the money. Good to know I wasn't just hearing things, the bass impact is certainly lower, adequate and clean, but being a bass head I can see the RCA/Mullards and soon to arrive Chatham 2339s being used more.

 

[Ultrainferno]

  Yes, stupidly good value for the money. Good to know I wasn't just hearing things, the bass impact is certainly lower, adequate and clean, but being a bass head I can see the RCA/Mullards and soon to arrive Chatham 2339s being used more.

 
I prefer the RCA/Chatham 6AS7G/6520 (bass) over the 2339/5998 Chatham/TS in my OTLs.
I just unpacked two NOS pair of black plate 6AS7G labeled Sylvania, I should stop buying tubes 

 

[Sonic Defender]

   
I prefer the RCA/Chatham 6AS7G/6520 (bass) over the 2339/5998 Chatham/TS in my OTLs.
I just unpacked two NOS pair of black plate 6AS7G labeled Sylvania, I should stop buying tubes 

Apparently my local source has plenty of black plate tubes, and he mentioned Sylvania. Are these worth looking into? If so, what is a reasonable price for a matched pair in your experience?

 

[Sonic Defender]

Here is the nice RCAs with original, and double boxing.
 

 

[adeadcrab]

  Yes, stupidly good value for the money. Good to know I wasn't just hearing things, the bass impact is certainly lower, adequate and clean, but being a bass head I can see the RCA/Mullards and soon to arrive Chatham 2339s being used more.

Yes the 6080WC have good bass, you can hear the click of pedal hitting kick drum. I have the GE 6080WC, though one of them arced and died on me.

 

[Sonic Defender]

  Yes the 6080WC have good bass, you can hear the click of pedal hitting kick drum. I have the GE 6080WC, though one of them arced and died on me.

I still have a lot to learn with the equivalents, but is it safe to assume that my version is unable to use the RCA Red 5693 tubes?

 

[Liu Junyuan]

  I still have a lot to learn with the equivalents, but is it safe to assume that my version is unable to use the RCA Red 5693 tubes?

Yes, I do not think you can with your version. However, there are better tubes IMO even for my version than those. So perhaps just look at it as you are not missing out too badly. My issue with them is that severely compromise the holographic, three dimensional staging that I get with glass tubes. It is more like you are introducing a solid state characteristic into the amp, which can be slightly grainy and harsh depending on what you are listening to. I think they are good tubes, but they are not my personal favorite in this amp. YMMV of course.

 

[MJS242]

   
Here's the story on the Mullard EF80: http://www.r-type.org/articles/art-019.htm
You can find these reasonably easy but make sure you get the mesh version. I can't seem to find a pic of mine but I have these with the new logo
 

 
Why you've never picked up an EF86 adapter is beyond me.  My EF80's have collected dust ever since.  

 

[Ultrainferno]

   
Why you've never picked up an EF86 adapter is beyond me.  My EF80's have collected dust ever since.  

 
Been to lazy to order them and as I don't have a lot of time to listen to the 339, I just never got to it.
They're $75, right?

 

[Sonic Defender]

I have on several occasions in this thread read about EF86 tubes so a few quick questions. I assume the adapter is ordered directly from the manufacturer? Is there a good site that lists the various tube numbers that fall under a category such as EF86? I am going to Google EF8s equivalents and see what I find.

 

[Sonic Defender]

  Yes, I do not think you can with your version. However, there are better tubes IMO even for my version than those. So perhaps just look at it as you are not missing out too badly. My issue with them is that severely compromise the holographic, three dimensional staging that I get with glass tubes. It is more like you are introducing a solid state characteristic into the amp, which can be slightly grainy and harsh depending on what you are listening to. I think they are good tubes, but they are not my personal favorite in this amp. YMMV of course.

Thank you, appreciate your thoughts as always. Your lovely tubes should arrive today so I will have an opportunity to listen to them tonight.

 

[Liu Junyuan]

  Thank you, appreciate your thoughts as always. Your lovely tubes should arrive today so I will have an opportunity to listen to them tonight.

Great. Please remember to be careful with the volume, as the Chatham 2399/Tungsol 5998 push very high gain relative to other tubes (which may work to your liking since you like to listen loudly). The dynamics from those tubes are only approachable by the 7236.

 

[MJS242]

   
Been to lazy to order them and as I don't have a lot of time to listen to the 339, I just never got to it.
They're $75, right?

 
Looks like ebay has the adapters for cheap