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Telefunken Ela-M 251 question
Old 20th March 2009 | Show parent
  #31
Lives for gear
 
jjblair's Avatar
 
🎧 15 years
Quote:
Originally Posted by The Studio RI ➡️
I'm still boggled by the fact that it is so diffucult to make an exact replica of this capsule. I mean, really... with all the CAD programs and such manufacturing tools we have today, not only should we be able to build an exact replica, but we should be able to send the specs to china and mass produce the suckers! (and don't bore me with the QC argument... you can get great QC and still maintain low cost if you hire a reputable manufacturer).
Replicating the capsule is one thing. Tuning it is another. Gefell M7s are machined the exact same way as they have been for decades, but the new crop don't sound as good. Its all in the tuning.
Old 20th March 2009 | Show parent
  #32
Gear Maniac
 
T- Funk Ian's Avatar
 
🎧 10 years
Quote:
Originally Posted by jjblair ➡️
Ian, check with Toni on that. I recall it being called the TK12 at its inception.
Nope, they've always been called the CK12. Even if I look at old company literature from 2003, it's called the CK12.
Old 22nd March 2009 | Show parent
  #33
Gear Nut
 
jlaber's Avatar
 
🎧 10 years
Quote:
Originally Posted by jjblair ➡️
The green GE 6072a tubes are considered the worst of the GE 6072 lot. Their rejection rate for microphone specs was very high, and the AKG engineers were very aware to steer clear of them. If you go though a bunch, you can find some good ones, but the five star, triple mica, square getter GE is pretty much considered the cream of the crop. Pretty much everybody knows to stay away from the green paint GEs for mics.
Thanks for the input on such a "green" question.

I was wondering if I just didn't "get it" when I tried the one I have. It's good to know that I'm not alone in my opinion. I found a GE document on the 5-Star line and it indicated gold-plated grid wires, high-reliability and rigorous testing, designed specially from the ground-up, not just "selected premiums" from ordinary runs.
Old 13th June 2011 | Show parent
  #34
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TanTan's Avatar
 
🎧 15 years
Quote:
Originally Posted by 3phase ➡️
they use an ecc81 as mic valve? and they produce in china under the name of a **** company to fake classical mikes?
ok.. i hope they are reasonable cheap than.
They don't make the Ela M251 in China.. and as far as i know Telefunken was established pretty long before the ****s.
Old 13th June 2011 | Show parent
  #35
Gear Nut
 
🎧 10 years
Quote:
Originally Posted by TanTan ➡️
They don't make the Ela M251 in China.. and as far as i know Telefunken was established pretty long before the ****s.
May 27th, 1903. About 11 years before the first world war and long before the ****'s.
Old 13th June 2011 | Show parent
  #36
member no 666
 
Fletcher's Avatar
 
🎧 15 years
TELEFUNKEN [round 1] was indeed established long before the National Socialist German Workers Party... for the interested, click this for a link to the Wikipedia page that outlines the history.

In more modern times - Telefunken USA started building recreations of old Telefunken microphones in South Windsor, CT [about 1/2 a world away from China... in the north east corner of the United States of America]. In 2009 global rights to the iconic brand were settled, and TELEFUNKEN Elektroakustik was "reborn" [the factory is still in South Windsor, Connecticut - USA].

The tubes used in the current iteration of the microphone changes from time to time as only NOS [New Old Stock] tubes are employed. I just called over to the factory and the current tubes that are being used are R-F-T ECC-81's [Made In Germany] as they were the quietest tubes found.

From time to time Mullards are used, Sylvanias are used, RCA's, TELEFUNKEN, etc... the current batch that passed testing is from R-F-T. Tube selection all depends on what tubes are located in batches on the NOS tube market. Once the tubes are acquired they are tested for noise, microphonics, etc. -- if the tests say they are good enough for the mics they're used... if the tests say they're not good enough for the mics then they're tossed [it gets expensive to say the least].

At the end of the day 6072a's and ECC-81 are pretty similar... but the ECC-81 [also known as the 12AT7] has a lower impedance output than the 6072a does... which gives the microphone's internal preamplifier an extended frequency response when driving the same [German made T-14] transformer.

I hope this sheds some clarity.

Peace
Old 13th June 2011 | Show parent
  #37
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jindrich's Avatar
 
🎧 15 years
Don't feed the Troll.

Report and demand him to be banned forever.
Old 13th June 2011 | Show parent
  #38
Gear Head
 
🎧 10 years
Quote:
Originally Posted by jindrich ➡️
Don't feed the Troll.

Report and demand him to be banned forever.

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