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Old 21st April 2008, 06:12 PM   #11
Salas is offline Salas  Greece
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Quote:
Originally posted by salas
and brands of same type on my DIY system.
Some are also more transparent sounding than others of same type.

Quote:
Originally posted by Miles Prower
Well, Salas, the original question was: "Do certain brands of rectifier tubes really make any difference?" Here, he's asking about brands. Of course, sticking a 5Y3GT in a hole designed for a 5U4GB is going to make anything, especially a SE, sound different: different Vf, Isurge, regulation, etc. This is probably a bigger consideration for a guitar amp where good voltage regulation isn't so important, or even desireable.

So far as brands go, does it really make a difference if you use an RCA as opposed to a Sylvania 5U4GB (if that's the type designed for)? Unless it's a really horrible, cheap, bottom of the line, off-brand type, I wouldn't expect it to make a significant difference. Certainly not enough to get me to buy some of these "boutique" types going for over a $100 a pop.
I mentioned same types different brands too. I did not make it very clear, sorry. Yes RCA 5U4G vs other NOS 5U4G or Soviet or Chinese do sound different in transparency, grain, bottom end, tone, spatial expansion.
I do design my DIY, knowing basic things, I would never fall in to such an obvious blunder to compare different types giving different headroom and voltages.
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