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Apparantly EML (see post below on EML 520B) is the old AVVT (Alisa Viac), which had a less then admirable reputation for reliability (what I read). Is that true of EML as well?
Follow Ups:
For all of your insights. It's difficult to seperate the hype from the reality, so insights such as these are helpful. Have you ever seen a web site that didn't claim their product to be the best in the world?I'm still curious as to how these 'super 300Bs' compare to 'TJ Meshplates', but that should be the subject of another post. By the way, 'TJ Meshplates' were actually the brainchild of Sophia Electric, from what I hear.
Mikeyb, hi. It would be interesting to find out what the actual service life is of the tubes you reference. Based on what I have gleaned from AA comments and elsewhere long service life seems to be not a realistic expectation. So, when you spend a lot for expensive super-duper tubes don't expect long life. This seems to be the operative rule. Would you pay money to get in on this gamble? If buying boutique tubes is this kind of a craps shoot I'd rather go to a casino.
"So, when you spend a lot for expensive super-duper tubes don't expect long life"My life (when my wife finds out that I spent $650 for a pair of tubes) or the tubes?
Kind of the opposite of the 'you get what you pay for' theory.
...they're built for sonic excellence and NOT long life, just as the HP cars are built for high-performance and NOT comfort, long-life, and trailer pulling.
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Tin-eared audiofool and obsessed landscape fotografer.
http://community.webshots.com/user/jeffreybehr
For what it's worth, I have a pair of AVVT 8B's and they work fine. Perhaps you should talk to jac (from jacmusic.com). He might be able to tell you more about the factory and quality of parts.
Hi,From my understanding, Mr.Dennis Fraker of Serious Stereo regularly uses the 2A3s made by EML, at conservative plate dissipations ( for best sound ), and he has nothing but very positive experiences with the tube line, considers them state of the art. Dennis deals always with Jac of JacMusic, and always told me Jac was knowledgeable and top notch !!
There are currently three different brands of "new" DHT coming out of Prague that I know of:Kron, Emission Labs and EAT all claim to have nothing to do with each other, but all also claim to have dug up (from driving cabs etc) the meisters and top staff from the original Prague Tesla factory that closed after the wall came down.
Never been to look myself, but seems all three use the same building and share supplies - and also all seem to make pretty much the same thing. Vaic was the original prime mover of this new growth industry, but apparently was a serious alcoholic and a hopeless production engineer, and none of the three acknowledge any current connection with him.
Caveat Emptor...
Allen,Kron has a seperate place altogether. EML and EAT have the same desiger and construction place, though I doudt they would admit that.
I think Korn is at the old Tesla labratory. The Tesla Plant is something like 20 blocks large. Making everything from dishwashers to light bulbs.
Anyway... this is my personal account of the history.
Alesa Vaic was selling repo tubes of the early radio types and Ricardo Kron took interest in him. Vaic Valve was formed and they worked together. Vaic and Kron were always fighting because early units have a pretty high failure rate so they split up. Kron moved into the Tesla Lab and Vaic somewhere else in the Chec republic. Anyways Alesa was terrible at paying bills and was evicted out of his place. Several of the people working for him went off on their own (EML & EAT). Alesa did produce for a couple of years but I have not heard anything for about 2 years.
Allen,to complement Gordon's history... if I remember right Mr. Schoenfeld of EML was a former production engineer from the beginning with Vaic.
To answer your question for using in production... I do not. The tubes are not reproduction of the original, for example 300B. As well a 2A3 is not a new repro of the original 2A3, it's a derive of the "300B" the companies manufacture. Have a look at the data sheets, in reality mostly the filament current differs.
Customers like to get original tubes or original style repros!
Yes, and I like to use tubes designed by the real masters proven over time!
... would you use for production?
I have used both the KR [Kron] PX25 and KR 300BXLS and have had nothing but positive things to say about them.
You mentioned Tesla - is related to Tesla/JJ (or is it just JJ now)?It's too bad that these sources are so shakey - the product specifications look fantastic on paper. I'm not sure I want to risk spending $350 - $650.
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