Of course it does. Tonight, Susvara sound particularly good from Ultimate with Philips E80CC and EL38. I am rather surprised that the amp seem to sound even better after one year. I just love this amp's performance so much. A tone that moves you and connects with you.

It's great. Hard to evaluate when all the drivers are good. :relaxed: I'm using Philips E80CC SQ with EL38 now. This thread seems to love the E80CC. https://www.whatsbestforum.com/threads/e80cc-comparison.34935/

Just heard from Matt. He's sending 12J5 tubes and 2 pairs of coupling caps to Eric for his Super Black Ultimate. Duelund CAST Pure Copper/Silver foil and Vcap Cutf. :relaxed:

Can't beat Bcowen. He has more GE and Fotons than me. :wink:

Tidied up. I'm getting a bit more organised. Easier to find my tubes now. :relaxed: There are some that are not shown here. Drivers and power tubes separated.

Using Mullard 6201 PQ with EL38 now. That's the tube on the right. Haven't tried this for a while and it's a pleasing sound. So many drivers and power tubes. Just change often. Says Made in Holland. The H has been rubbed off. Got a pair new from a friend.

Tube and solid state amps will never sound the same no matter how you mod the HD650. I've have a whole range of ss headphone amps before I gave them up for good and I did the whole shebang of modding HD650 following Purrin's method.

It should work because it's made to emulate the 807 and you have an adapter made for KT66.

For me the original HD650 with a good tube amp is sufficient.

@Deleeh your first picture of the EL38 with the double O or Halo getters at the bottom is exactly like mine. I'm just using it now with 6S3P. Eric is going to pass me 6S45P and adapters to try. The adapter goes on the 6S3P adapter. Whilst I like to try quad c3gs sometimes, I won't use it all...

I've done the complete modification before but I gave the headphone away. Now I just use it untouched.

It's a custom amp call Ultimate. This is where you can find out more info. https://www.head-fi.org/threads/mcchanson-amps-appreciation-thread.972577/#post-18090431 https://www.head-fi.org/threads/mcchanson-amps-tube-rolling-thread.972576/ Any other question you can message me privately because...

Yup still a good headphone even in 2024.

The ability to use 12.6v power tubes is a big plus. GU50 is a russian copy of the German LS50 and 12av5 is dirt cheap.

Yup pentodes and beam tetrodes. Far too many for me to enjoy now.

You need another adapter ! I've so many adapters already.

How does it sound compared to your other power tubes?

I thought that was a typo error. :relaxed: I've not heard of KT8C until now. Apparently the British Services abandoned it in favour of the American 807. KT8C is cheap but I'm not going to try another power tube. I've 2 amps powered on now. One has EL39 and the other KT88. Life is already too...

GEC 807 in Ultimate and EL39 in Odyssey. Life is good.

The 5b/254a is essentially a classic 807 in a small straight glass with a smaller top cap. Again I want to hear the difference between 254a and 254m if there's any. Who said that? Langrex. :relaxed: 5B/254A Valve Tube = 5B/254M with a UX5 Base

How is this not beautiful. Those glasses are thick, much thicker than most tubes. One of the most robust beam tetrode I've held in my hands.

The only way to find out is with my ears and I don't take much notice of that article because the ATS25 sounds superb. Much better than the Radiotron and Sylvania and the russian 807. I've also bought these small size 807. Waiting for the adapters to arrive.

And I'm about to find out if the VT60 sound like the ATS25. @crakers7 as well. 2 pairs of ears. :relaxed:

All the L63 has is H and 9 so I guess it's 1952 and September. The A2900 has 7418. So I guess it's 1973 but what is 18? A new month? and Z for Hammersmith. I'm starting to sound like a nerd reading date codes.

Re my KT88, this is how I interpret it. One of them is 'XC Z' - X is 1966 ; C is March and Z is MO Valve Co. Hammersmith. If we go with this https://dalmura.com.au/static/MOV GEC date coding.pdf The other tube is '7236 Z' and I don't know how to decipher the date code with this one. and...