2. misc-audio
  3. 151803-2897

Tube types

Hi all
My Octave HP700 pre uses, amongst others, a Telefunken ECC88. Can I use an E188CC? 
If not why?
Am I right in thinking the E88CC is far superior to the ECC88?

Thanks 
Rich
infection
jea48
4,680 posts
 
@ infection


From my limited tube rolling experiences I found myself agreeing with Joe S.

Joe’s Tube Lore
https://www.audioasylum.com/scripts/d.pl?audio/faq/joes-tubes.html#6DJ8

Jim
dill
2,558 posts
 
I have tried many makes & variations of this tube, including the CCa and recommend the Matsushita 7DJ8 as an great performer at a reasonable price.

https://www.upscaleaudio.com/products/matsushita-national-pcc88-7dj8?variant=21830008005
wlutke
744 posts
 
The Telefunken E88CC has much longer life (10,000 hrs vs 2000 hrs) and sounds fuller and smoother than the ECC88.  I had ARC SP-9 MKII and MKIII.  The E88CC sounded better in the MKIII, the ECC88 better in the MKII.  
rodman99999
6,206 posts
 
"Have you guys found that switching to premium tubes has been a significant improvement?"       Absolutely!     Less painful, when you only need one.
rodman99999
6,206 posts
 
@jea48- I mostly agree with Joe S, as well. I’m guess he didn’t have any late 50’s-early 60’s, grey shield, CCas. They command a premium price, for a reason. There’s much more difference, in the presentation of the upper-crust Siemens tubes, between their years of manufacture, than he mentions. They vary at least as widely as the Amperex iterations, which he seemed to have in abundance. So many variables, in this aspect of Audio!
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