Thanks again, Krutsch, huge help as always. I've ordered up the TS 6520.     Uh, I'm pretty uneducated when it comes to the actual workings of tubes, I just like how they sound. I'm sure someone that knows what they're talking about will weigh in with some answers for you, sorry I couldn't...

Thank you very much, Badas. I'll have a look into those recommendations, awesome.   Edit: How's this looking? http://tubeworldexpress.com/products/6520-chatham-by-tungsol-1950s-used-good-premium-6as7g

Cheers for the recommendation! Pretty interesting looking tube, quite far away from the Tung Sol., I'll see if I can get hold of a NOS in the UK.   Edit: After some research, the 7236 tubes seem to be a pretty good replacement for 5998s, anyone have any experience with these? Any thoughts on...

Hey guys, I'm pretty sure my Tung Sol 5998 is dying and I need to source a replacement. Unfortunately, the 5998 is pretty hard to get here in the UK and I was wondering if there were any comparable tubes that would be easier to source, doesn't necessarily have to sound as good as the 5998, but...

Jesus, there's some nice gear there. The He1000 on the Wa234 must be stunning, definitely something I'd love to try one day.

Yep! I listen to almost exclusively Folk, pretty heavily acoustic guitar and male vocals, these tubes really shine there. Enjoying them greatly. Thanks!

So, my Philips Miniwatt SQ E88CC's arrived  earlier this week, been burning them in over the last few days. Overall, they're pretty great sounding tubes. I'm not particularly good at reviews, so I'll just say that they're very sweet sounding and the mid range is fantastic.   Many thanks to...

Oh, it's not your fault at all! They're great sounding tubes, but I'm probably just unlucky.   Thank you so much for the suggestions, I'll definitely consider all the options, but those Philips look great. Thanks!

Yeah, I did, and now there's a problem with my other original TK. Kind of annoying. Not sure if I can be bothered to order another one or try a different pair.   Any other suggestions that aren't outrageously expensive?

Anyone heard the ~1960s Amperex Bugle Boy ECC88 in a Wa3? Looking at buying a pair.

Hahahaha, yep. Unfortunately, as a student, that's a pretty big hit. Oh well, a new one is on the way, should be here next week.

Well, ****. One of my Telefunkens died on the way to university, so I'll have to replace that. In the mean time, it's back to the stocks.... :(

Yep, it's the TS 5998, had it for about a week and I absolutely love it.   Thank you so much for the suggestions, you've been very helpful!

Well, they're finally here; Telefunken E88CC. They're new tubes so I'll have to let them burn in for a few days so I'll give full impressions then. I'm enjoying them already, though.      

Holy crap, that's a pretty great price. I'd look around for more Power tubes, but I'm enjoying my 5998 too much.   Still waiting on my E88CCs, unfortunately, should be here early next week.

Those W234s are absolutely gorgeous. I wish there were more audio shows in the UK.

Thank you so much for the help! I'm loving the Tung Sol, can't wait for the TKs. Unfortunately, my DAC's not working at the moment and my Xonar D1 just isn't cutting it so there's a fair amount of floor noise, really irritating. I think I just need to update some windows stuff, but we'll have...

Cheers! I've got some Telefunken Black Diamond E88CCs on the way, but they'll be a good 2 weeks.   Initial impression is a much improved bass response, we'll see what happens after two days or so of burn in.

Well, my Tung Sol 5998 for my Wa3 arrived inexplicably quickly. Listening now, I'll post full impressions in a few hours.    

Thank you! I'm loving it so far!

Yeah, I think I'll go with the 5998 and the TK's from tubedepot.   You've been very helpful, thank you!

What a strange coincidence, I was literally just reading this thread with some very impressive mods by yourself. Thanks for the info, I'll almost certainly order the unmatched tubes from the US then and save myself ~£100.

Cheers! I'm actually in the UK, so finding tubes is a bit of a hassle. I found a Tung Sol 5998 for £90 so I'll probably pick that up. I also found a matched pair of E88CC's but they're £190, pretty steep IMO.   It says on tube depot that the TK tubes are sold singly, would there be a big...

Cheers!   Hahaha, I wasn't planning on it, looking at a pair of TK E88CC and a Tung Sol 5998.

I picked up a Wa3 earlier today from Bonsey Jonsey, couldn't be happier. Sounds pretty fantastic with the stock tubes, but I'll be picking up some new ones over the next couple of week.   Excuse the crappy colours on the camera.