Back in the day, we found that Mazda versions of some valves were more
constant in linearity and gain than the Mullard version, but who knows why.
this was for RF circuits and was probably better to have known performance
but often you could put any make in and get away with it in an average
telly. EF184s were the main ones.
Brian

--
----- -
This newsgroup posting comes to you directly from...
The Sofa of Brian Gaff...

Blind user, so no pictures please!
"Mike Fleming" wrote in message
...
In article , tony sayer
writes:

Eat yer heart out Ross theres a new audio magicke bandwagon doing the
rounds;!

https://www.musicstore.de/en_GB/GBP/...us-Valves/cat-
GITARRE-GITROEDIV

Severely overpriced compared to Watford Valves.

I have no desire for valves in either hi-fi equipment or instrument
amplifiers, so I don't have any personal experience of whether there
might be a difference between valves, but this might be of interest
(it's from the POV of intrument amp users, not hi-fi):

http://forum.cakewalk.com/12AX7-tube...-m2096810.aspx

--
Mike Fleming