[kolkoo]

Fellas what is the minimum Gm on these ECC81`s? Got a low testing tube 54 ECC81 Copenhagens.
Thought this was a PM. Answer away if you know guys. Thanks!

What plate and grid voltage you testing at?

 

[TK16]

What plate and grid voltage you testing at?

Sent you a pm bro.


The pair despite the lower testing tube sounds fantastic. Like E88CC, CCa Heerlen PW, like those tubes on steroids. Quite a fantastic sound for a fraction of a price of E88CC PW. Another 12AT7 Holy Grail imo.

 

[gardibolt]

With people talking about the forthcoming Massdrop Koss ESP-95X electrostats, I thought it was time to revisit the venerable ESP-950. Using the Lyr 2 with the Ken-Rad 12AX7 tubes as a preamp my reaction is *holy crap!* Huge airy soundstage, gorgeous. Like listening to speakers. I need to try this setup with the ECC801S tubes.

So much goodness. More adapters came today so I think I'm set for a while. Time to just enjoy sounds.

 

[kolkoo]

So it looks like I've scored an earlier 1953 Copenhagen triangle9 TkC single. The construction is the same as the pair @TK16 linked the other day and slightly different from the 1954 Copenhagens I already have. Damn now I need to find another single like this


Edit: On the flip side I can pair this 1953 with the 1954 and see if I can hear a difference

 

[TK16]

So it looks like I've scored an earlier 1953 Copenhagen triangle9 TkC single. The construction is the same as the pair @TK16 linked the other day and slightly different from the 1954 Copenhagens I already have. Damn now I need to find another single like this


Edit: On the flip side I can pair this 1953 with the 1954 and see if I can hear a difference

Need more time with the Copenhagen's, but I will say they are easily as good as the 6201 PW Hamburgs. 1959's. The 51 pair should be here Friday.

 

[AuditoryCanvas]

https://www.ebay.com/itm/392126400454?ul_noapp=true

Look at this - at first I was excited e188cc d-getter auction - I have never heard these! On a closer look one of the tubes is most definitely not a Philips E188CC (the left one), it looks like some other type of D-Getter E88CC, probably a Siemens as the getter looks ribbed.
Now a Siemens E88CC D-Getter is rare but will definitely not match the sound of that E188CC D-Getter, so beware


Edit: I was able to piece together two singles Telefunken ECC801S:

1 is with transparent mica, fat getter, copper rods, 1 hole in plates
1 is with opaque mica, fat getter, nickel(silver?) rods, 1 hole in plates
Unfortunately no codes to tell when are they from but I believe the fat getters were gone early 60s so it's either super early 60s or late 50s.

They match perfectly testwise so decided to try them on together and I can't tell the difference between them on mono tracks and damn they sound better than I expected I have to do a comparison with my E88CC 1958 fat getter gold rods... and my E188CC Teles

Edit2: After some listening they remind me very much of the E188CC Telefunkens it's uncanny and now I remember why I disliked the E188CC family, they are a tad too delicate and polite for my ears. Btw I feel the same way with the 6201, they remind me a bit of the E188CC Heerlens or maybe Mazdas

I can kind of see what you mean about the ecc801s politeness, although mine really changed after burn in and opened up a lot, though they are still quite thin on mid warmth, which I actually like, but I can't relate that to the 6201. The 6201 are really full, with a lot more punch, warmth, and depth than any of the E188CC/6922 etc. I have found the PW 6201 to be fuller sounding to the non PW, but the non PW are still not in E188CC territory to my ears, let alone the PWs.

What I have noticed about the 6201 PW is that they sound different after being on for a good few hours, so I've since been turning the amp on earlier in the day, so they're nice and toasty by the time I get to some listening time.

 

[kolkoo]

Now that I've been listening to music at work too, I've got a work setup with Laptop->VB-Audio ASIO Bridge->Eitr->Modi MB-> my old Lyr 2 -> MrSpeakers Alpha dogs the sound quality is worlds apart compared to the Yggy -> Mj2 -> HD800s.
I was listening to the Telefunken ECC801S at home and even though they are polite they had nice bass extension on my HD800s, which at work using the Alpha Dogs is much more subtle and even insufficient.
The 6201 and Mullard Mitchams seem to alleviate that and bring me great bass listening pleasure at work even. I didn't think I would hear such a big difference, perhaps it's mostly headphone related, but I don't know what closed-back headphones I can get for work that do not cost an arm and a leg and have good isolation against leakage and sound as good as HD800s, probably don't exist. But using tubes I can match the signature and get what I want even in my work system. Damn tubes are great, I know perhaps using EQ you can get a similar effect but I doubt you can do that so perfectly.

 

[bcowen]

I haven't climbed aboard the 6201 train (and not planning to) so I'm not tuned in to the desirable versions and respective pricing. But thought I'd mention that Tube World has quite a few available. I've bought other tubes from them several times and they have been honest and reliable each time.

https://tubeworldexpress.com/search?page=2&q=6201

 

[TK16]

I haven't climbed aboard the 6201 train (and not planning to) so I'm not tuned in to the desirable versions and respective pricing. But thought I'd mention that Tube World has quite a few available. I've bought other tubes from them several times and they have been honest and reliable each time.

https://tubeworldexpress.com/search?page=2&q=6201

Ewww far too many GE tubes.

 

[bcowen]

Ewww far too many GE tubes.

Huh? I thought GE's were the best?

 

[kolkoo]

Edit : fk it needless drama, perhaps we will be able to work something out with this seller.

Anyway I just got the oldest Mullards 4 of which I won for 5$ With date codes I cannot decipher yet

1552 L4 basically 1552 XX.

Anybody have an idea about that?

 

[TK16]

Edit : fk it needless drama, perhaps we will be able to work something out with this seller.

Anyway I just got the oldest Mullards 4 of which I won for 5$ With date codes I cannot decipher yet

1552 L4 basically 1552 XX.

Anybody have an idea about that?

First tube Is December 1552, second is the 20th month in 1552.

 

[kolkoo]

First tube Is December 1552, second is the 20th month in 1552.

Yeah I figured out L is month and 4 is year, nice I assume factory is Mitcham?

Edit: holy **** the quad of 1954 Mitchams that I got for 5$ ( I kid you not ) each of them tests 70-80%! Better than some tubes I've spent 100 euros or more for What

 

[TK16]

Yeah I figured out L is month and 4 is year, nice I assume factory is Mitcham?

Edit: holy **** the quad of 1954 Mitchams that I got for 5$ ( I kid you not ) each of them tests 70-80%! Better than some tubes I've spent 100 euros or more for What

That 51 pair of Copenhagens test very well.
4,250-4,725
4,800-4,500
No 3,000 Gm on 1 tube like the 54`s.

 

[gardibolt]

Ok so I'm not quite done with the 12A*7 family. Picked up a decent priced pair of the Tung Sol 12AX7 black longplates. Supposed to test new+. We will see.