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DIfferences in Philips Miniwatt 12AU7

Hi! I'm looking to tube-roll my the preamp section wich uses 12AU7's. I am specifically interested in the philips miniwatt tubes for now. On the used market, I have come across multiple versions of that tube, some said to be from Holland, other Australia, others France with the 6189 code on it. Is there any significant sonic differences between those NOS versions? Any of them I should stand far away from? Thanks!

plagoniste
tomcy6's avatar
tomcy6
2,588 posts
 

It would be hard to say what differences in sound Phillips Miniwatts made in different factories would produce in your system.

Give Brent Jessee a call.  He may or may not have any Phillips Miniwatts, but he can probably help you find the tubes you're looking for.

plagoniste OP
2 posts
 

Yes thanks! I am sure it is hard to pin point the differences in sound. I'm more interested in the quality of the production. Are Holland, Autralian and French productions equivalent in terms of quality?

tomcy6's avatar
tomcy6
2,588 posts
 

I would say yes. They were produced to the same standard of quality, but who can say what has happened to them in the last 50 years.

plagoniste OP
2 posts
 

Ok thanks!

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