[gibosi]

Quote:

Dear Mab 1376,
 
Here is a link to German EBay for Siemens EK90 tubes (three offerings, but don't know about pairs - you have to ask seller):
 
http://www.ebay.com/sch/i.html?_from=R40&_sacat=0&_nkw=Siemens+EK90&LH_PrefLoc=2
 
To find these tubes when you go to EBay, look on the left  and scroll down to the heading Location; then click on Worldwide.
 
Hope this is of help
 

 
And further down the page, under "More items related to "Siemens EK90" there is one listing with 5 available:
 
http://www.ebay.com/itm/EH90-EH-90-6CS6-SIEMENS-NOS-NEW-MCINTOSH-/370825161972?pt=DE_TV_Video_Audio_Elektronenr%C3%B6hren_Valves&hash=item5656e6ecf4
 
However, these look a little different than mine. Mine have ribbed plates, whereas, as best I can see, these do not. Mine also have a three digit number below EK90, and these do not. And we cannot see if these have O-getters. And further, we can't see the bottom of these tubes, but mine have an embossed number in the glass between the pins. All that said, even though they look a little different, they certainly look genuine, 
 

 
Edit: Oh, my bad! That link is for EH90/6CS6, not the EK90!!  Sorry!!  (>_<)

 

[mab1376]

Quote:

 
And further down the page, under "More items related to "Siemens EK90" there is one listing with 5 available:
 
http://www.ebay.com/itm/EH90-EH-90-6CS6-SIEMENS-NOS-NEW-MCINTOSH-/370825161972?pt=DE_TV_Video_Audio_Elektronenr%C3%B6hren_Valves&hash=item5656e6ecf4
 
However, these look a little different than mine. Mine have ribbed plates, whereas, as best I can see, these do not. Mine also have a three digit number below EK90, and these do not. And we cannot see if these have O-getters. And further, we can't see the bottom of these tubes, but mine have an embossed number in the glass between the pins. All that said, even though they look a little different, they certainly look genuine, 
 

 
Edit: Oh, my bad! That link is for EH90/6CS6, not the EK90!!  Sorry!!  (>_<)

 
Yeah I almost did the same thing, similar name and appearance can throw you off lol.

 

[Acapella11]

These are 6CS6 tubes. Might be a good idea as well though =)
 
Here is a link for various types of 6BE6 tubes, which is a Turkish tube store as indicated by the translation of the headlines. They seem to be pretty well sorted:
 
http://www.nostubestore.com/2012/08/various-ek90-6be6-5750-cv4012.html
 
I have just started to burn in the Amperex 6687 E91H (6BY6) and first impression is that they are tubier than the Siemens EK90 (6BE6) tubes but pleasant indeed. They indeed seem to sound opener and more interesting non-strapped as already indicated by gibosi:
 
Quote:

I have had a little time to listen to the Siemens EK90 and the Amperex E91H using the 1-7 strapping. I don't quite know how to say this, but it is as if the warmth of the Amperex turns a bit too sweet after strapping. In my mind, these are much better unstrapped.

 

[Audiofanboy]

Hate to point this out, but the Siemens EK90 on ebay mentioned here are either Russian/Eastern European (saucer getter) or Mullard/Philips group. Same applies to the link for Siemens EH90, most likely Mullard or Philips, and different construction from -genuine?- Siemens like the pics on this thread...
 
I'd wait find one like the pic gibosi posted if you want the same sound; though I'm sure the Russian and Mullard types are also worth a try.

 

[Acapella11]

For clarification:
 
My Siemens EK90 are saucer getter type tubes. I encourage buying them.
 

 
And to complete the series, here are my softer sounding Amperex E91H (6BY6) tubes, which I just started to enjoy unstrapped.
 

 

[siles1991]

all of the 6N6P-IR i find from ebay are expensive just for a single unit O_O

 

[Acapella11]

Quote:

all of the 6N6P-IR i find from ebay are expensive just for a single unit O_O

$40 a pair incl. shipping, no information about the year of production though, but can be asked. Says 88 on the glass. So, if this is a photo from what they sell, they are from 1988:
http://www.ebay.co.uk/itm/6N6P-IR-ECC99-E182CC-high-durable-double-triode-tubes-Lot-of-2-pc-NOS-/300693108383?pt=LH_DefaultDomain_0&hash=item4602b4b69f
 
$52.50 a pair incl. shipping, but on the photo and according to the description these are from 1974:
http://www.ebay.co.uk/itm/2St-6N6P-iR-ECC99-E182CC-Hi-End-Militar-Rohre-Neu-Seltenheit-/140995515510?pt=DE_TV_Video_Audio_Elektronenr%C3%B6hren_Valves&hash=item20d3fcd476
 
$38 a pair incl. shipping, no year given, photo looks like the one from the first above post:
http://tubes-store.com/product_info.php?manufacturers_id=19&products_id=519&osCsid=ul4s0gk0bbbr5qe5qhhh3m1er2
I have bought there and mine are from 1974, so the photo could just be a place holder.

 

[gibosi]

Quote:

These are 6CS6 tubes. Might be a good idea as well though =)
 
Here is a link for various types of 6BE6 tubes, which is a Turkish tube store as indicated by the translation of the headlines. They seem to be pretty well sorted:
 
http://www.nostubestore.com/2012/08/various-ek90-6be6-5750-cv4012.html
 

 
If you anyone is interested in Siemens and Telefunken 6CS6/EH90, these look genuine, and including shipping, are not at all expensive. I have a pair of each coming to me.
 
http://www.ebay.com/itm/251035838020?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649
 
http://www.ebay.com/itm/261191506815?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649
 
And I got my Siemens and Telefunken EK90 and Brimar CV4012 from the NOS Tube Store, but I remember reading a posting here that they no longer have the Siemens....

 

[Acapella11]

Quote:

 
If you anyone is interested in Siemens and Telefunken 6CS6/EH90, these look genuine, and including shipping, are not at all expensive. I have a pair of each coming to me.
 
http://www.ebay.com/itm/251035838020?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649
 
http://www.ebay.com/itm/261191506815?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649
 
And I got my Siemens and Telefunken EK90 and Brimar CV4012 from the NOS Tube Store, but I remember reading a posting here that they no longer have the Siemens....

 
I got bought these Siemens EH90 tubes. Thanks for posting this.

 

[siles1991]

referring to the chart on pg 77 I cant find how to use EH90 tubes you posted?

 

[mab1376]

Quote:

 
If you anyone is interested in Siemens and Telefunken 6CS6/EH90, these look genuine, and including shipping, are not at all expensive. I have a pair of each coming to me.
 
http://www.ebay.com/itm/251035838020?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649
 
http://www.ebay.com/itm/261191506815?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649
 
And I got my Siemens and Telefunken EK90 and Brimar CV4012 from the NOS Tube Store, but I remember reading a posting here that they no longer have the Siemens....

 
I bought the TFK's from them, and when I went back to order the Siemens they were already sold out.

 

[Acapella11]

Quote:

referring to the chart on pg 77 I cant find how to use EH90 tubes you posted?

The table is updated now and includes also the 1/7-strap for heptodes. EH90 = 6CS6.
 
 
Gibosi and evryone with an Amperex E91H, I am just listening to the Amperex E91H in EF91/92 and EF95+2/7-strap settings. Give it a go and tell me what you think. I am not sure it gets better than unstrapped but it is still interesting.

 

[MIKELAP]

Quote:

$40 a pair incl. shipping, no information about the year of production though, but can be asked. Says 88 on the glass. So, if this is a photo from what they sell, they are from 1988:
http://www.ebay.co.uk/itm/6N6P-IR-ECC99-E182CC-high-durable-double-triode-tubes-Lot-of-2-pc-NOS-/300693108383?pt=LH_DefaultDomain_0&hash=item4602b4b69f
 
$52.50 a pair incl. shipping, but on the photo and according to the description these are from 1974:
http://www.ebay.co.uk/itm/2St-6N6P-iR-ECC99-E182CC-Hi-End-Militar-Rohre-Neu-Seltenheit-/140995515510?pt=DE_TV_Video_Audio_Elektronenr%C3%B6hren_Valves&hash=item20d3fcd476
 
$38 a pair incl. shipping, no year given, photo looks like the one from the first above post:
http://tubes-store.com/product_info.php?manufacturers_id=19&products_id=519&osCsid=ul4s0gk0bbbr5qe5qhhh3m1er2
I have bought there and mine are from 1974, so the photo could just be a place holder.

2 new  matched 6H30PI GOLD PIN come up to $83.89 U.S. shipped in Canada 
 
 
 from PARTS CONNEXION in Canada

 

[mordy]

Does anybody have any idea about the quality of Italian made tubes by the brand name FIVRE?
 

 

[siles1991]

Quote:

The table is updated now and includes also the 1/7-strap for heptodes. EH90 = 6CS6.
 
 
Gibosi and evryone with an Amperex E91H, I am just listening to the Amperex E91H in EF91/92 and EF95+2/7-strap settings. Give it a go and tell me what you think. I am not sure it gets better than unstrapped but it is still interesting.

alright thanks does it mean I can run it with ef95 settings and just stick it in?