Tube Rolling w/Crack

[Zarno]

Tubes.....

[Zarno]

Sorry...i encounter problems to upload my pics.... I'm gonna check the rules..

[Deke609]

try resizing them so they are smaller files.

cheers, Derek

[Zarno]

Derek;
do you know the correct size for posting ?? my pics are around 2 to 3 mb ....

[Zarno]

i was also thinking of the way of the phase ???is this important for this amp??

i ve seen the big difference here in Europe with this issue on my HE hifi system .....bought a furutech TP E 80 and could see the difference when inverting the phase ..........

[diynewbie]

... the HD 650 with the stock cable and regarding this would you be kind to tell me if there is a way to correctly set it back to the headphones (only one way to insert the plug??? not easy to say that in french translation  =Keyed?) ....

If you look closely at the pins, you will see that one is larger than the other.  You should be able to see that one hole in the headphone is larger that the other and line them up correctly that way.  I could be wrong, but I think the small pin is forward on the right side and the large pin is forward on the left side.  The pins will only insert easily in one orientation - don't try and force them in.  Keep switching the orientation until they insert easily.

[Deke609]

Derek;
do you know the correct size for posting ?? my pics are around 2 to 3 mb ....

I resize to less than 2 MB - typically to less than 1.

[Zarno]

6080

[Zarno]

it works !!!!

so i ll do pics of the bottom plaque ....

can you see it correctly?

[Tom-s]

Congrats, the picture can be seen and that's a real Telefunken 6080! 


And just to make you aware. There's a modify message button on right top corner of every message.
This can be used to add information (that you forgot) to your last message. In such a way you don't have to post a new one every five minutes.

[Deluk]

I'm sure you have your 650 cable sorted now but the L & R on the plugs will always be on the outside matching the similar ones at the top of the earpiece on the headband when plugged in correctly. Yes the pins are different sizes so will only fit one way.

[oguinn]

Congrats, the picture can be seen and that's a real Telefunken 6080! 


And just to make you aware. There's a modify message button on right top corner of every message.
This can be used to add information (that you forgot) to your last message. In such a way you don't have to post a new one every five minutes.

How can you tell it’s genuine out of curiosity? I just received two that were allegedly NOS but I’m skeptical.

[Tom-s]

There's part you can learn from Jac: https://jacmusic.com/nos/images/Fakes/

For me it's the internal construction i always look at with all tubes.
Here's a few links with relabeled ones:
This first one is a GE i think: https://www.watfordvalves.com/product_detail.asp?id=4700
These are RCA: https://www.picclickimg.com/d/l400/pict/143378485358_/Telefunken-6080-Verst%C3%A4rker-Gleichrichter-Regel-R%C3%B6hren.jpg
This is a Russian 6H5/13C: https://www.frihu.com/images/ngg_featured/telefunken_6as7g.jpg

[oguinn]

There's part you can learn from Jac: https://jacmusic.com/nos/images/Fakes/

For me it's the internal construction i always look at with all tubes.
Here's a few links with relabeled ones:
This first one is a GE i think: https://www.watfordvalves.com/product_detail.asp?id=4700
These are RCA: https://www.picclickimg.com/d/l400/pict/143378485358_/Telefunken-6080-Verst%C3%A4rker-Gleichrichter-Regel-R%C3%B6hren.jpg
This is a Russian 6H5/13C: https://www.frihu.com/images/ngg_featured/telefunken_6as7g.jpg

Using the sophisticated methods of "reading the eBay listing" and triangulating that with the links you posted I determined I did, in fact, buy TFK branded GE valves. So I got what I paid for.

[Tom-s]

Be careful paying for tubes.

My best recommendation price/performance for Crack output tubes (for those who wish to do tube rolling) would be

1. Svetlana 6H13C (comes with OTK stamp, winged C, blabla) from Russia (large soundstage, mellow everything, good tone).
2. Thomson CSF France 6080WA (large soundstage, more details, even better tone, less bass as the above).

Both are +- 15€ online.

For input tubes with the speedball i'd go with the Tungsram E80CC (best paired with 6H13C) (found for +- 20€ online) NOS as a first tube rolling option with a definite improvement over most 12AU7's.