Page 2 of 5
#16
Posted: Sat Sep 10, 2011 3:41 pm
by al newall
JackOfAll wrote:Swapping the 6N6P for an ECC99 is a more subtle change than swapping out the ECC88. My recommendation would be to "roll" that first before thinking about ECC99's.
Since you mention it.
I've been using Tesla E88CC tubes in place of 6n6p-ev for a week or so.
A bit more detail, a bit more realistic sounding. A bit harsher, but i'm adjusting to that.
Didn't like them in my cheap headphone amp, and actually preferred the original Chinese equivalent 6n11 i think.
However in the preamp they're not bad at all.
#17
Posted: Tue Sep 13, 2011 2:07 pm
by JackOfAll
deleted
#18
Posted: Tue Sep 13, 2011 2:22 pm
by Nick
Swap out the 6N6P's for ECC99's. 6N6P's are too syrupy/tubey for my liking.
Just worth pointing out that it was found all of 8 years ago that there are 6n6p and 6n6p. One is as you describe, the other is far better. Can't remember off the top of my head what the visible difference is.
#19
Posted: Tue Sep 13, 2011 2:29 pm
by JackOfAll
deleted
#20
Posted: Tue Sep 13, 2011 4:12 pm
by Ali Tait
Just bought some of these to try-
http://www.ebay.co.uk/itm/360389124800? ... 466wt_1139
Anyone else tried them?
Nick, what's the difference between the good and bad'uns?
#21
Posted: Tue Sep 13, 2011 4:39 pm
by JackOfAll
deleted
#22
Posted: Tue Sep 13, 2011 5:06 pm
by Andrew
Its the factory that made them, the chap who made the claim said it was down to where they were made not the parts used - tho' that may, or may not, be a difference too. I'll try and dig out the place names involved. I think one was the Refleckor plant, or Novibyrisk (spelling).
I seem to recall all the ones I have are not the better ones, sadly. I even ordered mine from the same seller, the place where the chap who put me onto the difference got his, he also ordered more and second time around he got the lesser ones.
cheers,
Andrew
#23
Posted: Tue Sep 13, 2011 5:13 pm
by Nick
Yes, I was trying to find Dave Dove's original post, but I think its several WAD forums ago.
Anyway, room for differing views.
#24
Posted: Tue Sep 13, 2011 5:15 pm
by Andrew
there are 6n6ps and 6n6ps
if you know what i mean
the difference being:
good and very good
these novosibirsk ones are plentiful
but the reflektor ones are less microphonic
-they have extra springy bits inside-
but you often get novosibirsk
despite the ebay photo showing reflektor
hence this thread
looking forward to the 6n2p
dave
http://www.ominous-valve.com/russtube.html
#25
Posted: Tue Sep 13, 2011 5:32 pm
by JackOfAll
deleted
#26
Posted: Tue Sep 13, 2011 6:19 pm
by Ali Tait
I do recall reading somewhere that after Gorbachov came to power, all the plants producing the ultra pure metals used to make valves were closed down, and most of the valve producing plants were closed and their machinery sold to the Chinese, if true it would appear that pre Gorbachov valves should be better quality.
#27
Posted: Tue Sep 13, 2011 7:50 pm
by JackOfAll
deleted
#28
Posted: Tue Sep 13, 2011 9:38 pm
by al newall
As far as i know, the only ones that are anything special are 6n6p-EV. Which are the ones i use.
Not many for sale at a sensible price nowadays.
Mr Lampizator says the 6H30 was designed for a different application and doesn't sound as good. Doesn't mean a thing of course.
#29
Posted: Tue Sep 13, 2011 10:28 pm
by JackOfAll
deleted
#30
Posted: Wed Sep 14, 2011 6:32 am
by Ali Tait
Is the 6H30 a 6n6p equivalent?