Alright you won't hear from me on the GEC 807 VT60 until a few days later. Maybe a week later. I will have to give these tubes a week's burn in at least. Here's a sneak preview of the VT60 and ATS25 together. @Deleeh I get it when you're excited about the GEC KT63. I am excited about my GEC...

I toss a coin on which to listen first and it landed on the 5B/254M. I make sure it landed there because I am so wanting to listen to these tubes even though they are so much cheaper. This is only into the first 30 minutes so I won't trip myself and get overly excited. However let me give you a...

Deciding whether to post here or the Reference EL34 thread and decided to post here. After all, this is Manchester United home ground. I mean McChanson. :relaxed: Both adapters and tubes have arrived, in good condition. No broken GEC. :relaxed: In fact the the packaging of the GEC 807 VT60 is...

And the 5b/254m adapters from Mrs X are arriving today !!! If life everyday is as exciting as today, I have to watch the blood pressure.

My GEC 807 VT60 is arriving today !!! I'm dying to find out if ATS25 and VT60 are close cousins or siamese twins. Meanwhile let's talk 6as7, 6080. I still have pairs of Bendix 6080wb slotted graphite plates with copper rods, Mullard 6080, Tung Sol 7236 (IBM), single Tung Sol 5998. I had sold...

Stay that thought there for while. With gEm, Eric has produced an amp that will compete with Ultimate. 6AS7. 6080, 5998 is not the same in gEm as you would be used to in an OTL amp. gEm is OTC like Ultimate. I have to stop my urge from ordering a Super gEm from Eric because the pair of Tung...

Meanwhile my GEC 807 VT60 and 5b/254m adapters are arriving either today or tomorrow. After years of getting tubes, I'm still excited by the arrival of a new tube. :relaxed: I think if the interest dies, I will be leaving this hobby but it doesn't seem to die. In fact it gets more intense...

When I was into Ultrasonic Studio amps, I had horse blinkers on. I knew Eric then but not as well as I know him now. Telemachus was supposed to be my last amp. :relaxed: In my view, only with the arrival of the Super Ultimate did I see it competing will any of the well known tube amps out...

To my ears the difference between my Radiotron 6F6G and GEC KT66 - tonal density, body weight and warmth. KT66 has more of those and generally a better texture in my opinion. KT66 is also a much more powerful power tube than 6F6. We don't need powerful power tubes for headphones but blasting it...

Eric is the one building the amp. I find it incredible that he has built more than 30 Ultimates in a little over a year - all by himself. A true custom amp builder. You choose your parts, ideas and he will build it. Ultimate is not the only design he creates. He was building speaker amps way...

KT66 were the first pair of beam tetrodes that I bought once I knew I was going to get Tomas to custom build Odyssey for me. I was also the first to get Tomas build an old school amp for Ultrasonic Studio. He was mainly into building amps using Mr Cuwen's design ideas - new school. :relaxed...

GEC KT63 is a 6F6 equivalent. When testing the U-Amp sometime ago, I was sampling these tubes from Eric. Russian 6F6 NOS Genelax KT88 Chinese 350B

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.