My Tube Collection, Welcome to share yours

[escultor]

Estoy muy impresionado...y hasta un poquito envidioso.
Necesitaría cuatro.
¿Puedo hacerte una pregunta con respecto a los 211?
Me complace mantener esto en un mensaje privado o hacerlo público aquí.

Shure, its up to you

 

[oldvinyl]

Hi, nice and incredible tube collections, congratulations, I'm a collector too, but more inclined to power tubes, isn't there much love for power tubes?

Sure - power tubes are great. I just have not yet dug out those boxes yet.

Stay tuned. And, keep posting pictures of those awesome tubes.

 

[oldvinyl]

This is two quads of CV575 (5U4) rectifiers. All have the same date code, there are some different codes on the bottom of the base.
While they have the same dates, one of the tubes only has 5 pins. That's ok for this type tube, just odd that the production was changed.

These were (and still are) in perfect condition.


This shows one of the tubes with only 5 pins.

 

[adrian cheng]

This is two quads of CV575 (5U4) rectifiers. All have the same date code, there are some different codes on the bottom of the base.
While they have the same dates, one of the tubes only has 5 pins. That's ok for this type tube, just odd that the production was changed.
View attachment 156678
These were (and still are) in perfect condition.
View attachment 156679
View attachment 156681
This shows one of the tubes with only 5 pins.
View attachment 156683
View attachment 156684

Made by Tungsram

 

[oldvinyl]

Made by Tungsram

Yes, thanks. Apparently, Philips/Mullard took over the Tungsram plants in Britain in 1952.

 

[oldvinyl]

Hi, nice and incredible tube collections, congratulations, I'm a collector too, but more inclined to power tubes, isn't there much love for power tubes?

Ok, share the love ... The WE 300B started my love affair with single ended triode amps. While these are not the older exotics, they are still from the original manufacturing. Gotta love these tubes - good for tens of thousands of hours. At my rate of use, they will last as long as I need them.

 

[oldvinyl]

The plot thickens. From an earlier post, I showed the Valvo packaged Mullard 5U4G with 7C2 J5K codes. The Mullard/Volvo had 5 pins. The Philips branded had all 8 pins, except the one. What a coincidence that these tubes, purchased from different sellers, decades after they were made, were all from the same month/year and factory.

I could hypothesize that the one Philips tube was from when the production changed from 8 pins to 5 pins. Or maybe that is just guessing.

Philips branded on left, Mullard on right and below.

 

[escultor]

DET-25 GEC

 

[escultor]

Vaic VV52

 

[escultor]

WE212

 

[adrian cheng]

RFT EF 86 Disc getter made in 1958

 

[adrian cheng]

 

[adrian cheng]

 

[adrian cheng]

 

[oldvinyl]

1945 RCA 6SN7 VT-231 smoked glass

 

[Mr.Miniwatt]

You have too many tubes Mr. Vinyl, you have to send those to me (joking, I also have too many and I listen to 5% of them).

And something to be on topic, a pair of Mullard EL38.



I have several pairs of this one but never really liked it on my amp. A more detailed photo:


Date codes are Hm1 / B2D2. Mullard, Blackburn.

 

[oldvinyl]

You have too many tubes Mr. Vinyl, you have to send those to me (joking, I also have too many and I listen to 5% of them).

Uhmmm ... guilty as charged!!

 

[CDawg]

My Chinese 12AX7 tubes. Here's some measurements I've taken on a Maxipreamp II of a few interesting looking ones.

Black Coating 12AX7T

1 81, 89 1880, 2080 81, 81
2 88, 93 1990, 1950 81, 81
3 83, 91 2080, 2110 83, 83
4 96, 94 2080, 2130 84, 82
5 89, 93 2190, 2050 82, 82
6 95, 92 2020, 2090 82, 81

TJ Full Music Mesh Plate

1 85, 84 1830, 1770 85, 86
2 83, 81 1830, 1810 82, 86

 

[adrian cheng]

My Chinese 12AX7 tubes. Here's some measurements I've taken on a Maxipreamp II of a few interesting looking ones.

Black Coating 12AX7T

1 81, 89 1880, 2080 81, 81
2 88, 93 1990, 1950 81, 81
3 83, 91 2080, 2110 83, 83
4 96, 94 2080, 2130 84, 82
5 89, 93 2190, 2050 82, 82
6 95, 92 2020, 2090 82, 81

TJ Full Music Mesh Plate

1 85, 84 1830, 1770 85, 86
2 83, 81 1830, 1810 82, 86

View attachment 156818View attachment 156819View attachment 156820View attachment 156821View attachment 156822View attachment 156823View attachment 156824
View attachment 156825

My Chinese 12AX7 tubes. Here's some measurements I've taken on a Maxipreamp II of a few interesting looking ones.

Black Coating 12AX7T

1 81, 89 1880, 2080 81, 81
2 88, 93 1990, 1950 81, 81
3 83, 91 2080, 2110 83, 83
4 96, 94 2080, 2130 84, 82
5 89, 93 2190, 2050 82, 82
6 95, 92 2020, 2090 82, 81

TJ Full Music Mesh Plate

1 85, 84 1830, 1770 85, 86
2 83, 81 1830, 1810 82, 86

View attachment 156818View attachment 156819View attachment 156820View attachment 156821View attachment 156822View attachment 156823View attachment 156824
View attachment 156825

Hi Carlos, photos are getting better

 

[Mr.Miniwatt]

Since you speak about chinese tubes, I have a 12AX7A made, from what I know, by Shuguang.


Any opinions on this one?