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R/E/P => Klaus Heyne's Mic Lab => Topic started by: afterlifestudios on May 03, 2020, 05:53:16 PM

Title: VF14 "beating up"
Post by: afterlifestudios on May 03, 2020, 05:53:16 PM
I usually don't "beat" mine up for even a few seconds!

(Thought this typo on the warning card inside my U47 case would bring some amusement...)


Title: Re: VF14 "beating up"
Post by: klaus on May 03, 2020, 09:25:55 PM
It also underlines Neumann's recommendation that is often treated with skepticism: yes, you can record with close to full fidelity after just one minute of heating up the mic!
Title: Re: VF14 "beating up"
Post by: afterlifestudios on May 04, 2020, 12:13:14 AM
Yes, it always amazes me how quickly they are ready for action.  Sometimes I’ll gain up the mic pre and pull up the fader during warm up to listen to the “tinkling” of the filaments(?) heating up.  I’m assuming it’s the sound of expanding metal, as it reminds me of a miniature version of a baseboard heater warming up.  I haven’t gotten the stopwatch out, but there may be a latent “ping” or two after the 60 second mark...

Or was that warning put in there to ease people’s worries about having “no audio” at all while the tube is heating before the mic “comes to life”? 
As in: “Don’t worry if you don’t hear anything for the first minute.”
Not: “Perfectly stable for use after 1 minute”.
Title: Re: VF14 "beating up"
Post by: David Satz on May 13, 2020, 02:36:40 PM
Actually, in the German it says that the warmup period can last _up to_ a minute. So it really does imply that after a minute, it should be "good to go".

Nice typo, though.