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Sudden gain loss from tube mic (sontronics omega)
Old 9th August 2017
  #1
Here for the gear
Sudden gain loss from tube mic (sontronics omega)

Hi everyone,
I got this Sontronics Omega tube mic two months ago, a good used deal
Worked perfectly since yesterday, when it suddenly lost circa 10dB of gain and, as I can perceive, a bit of definition
This is my first mic, so I'm guessing if it's time to change the tube, but I didn't find, searching on the net, if gain loss is related with the tube getting old. Instead I found that tube mic usually get noisy, and crackling while recording, with no mention on a gain loss.
So here I am asking you if changing the tube would be a solution, or if I should worry about something else as a cause of this...
Of course I checked all the gain stages (which are simply my interface preamp gain - and I checked also with another interface - and the volume in my DAW, comparing with old recordings )

Thanks to all
Old 9th August 2017
  #2
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chrismeraz's Avatar
 

For me, every time something goes wrong with a tube (which is all the damn time), the symptoms are completely different. I don't worry about it anymore - if something is wrong and I've already done my basic troubleshooting steps, I'll just get another tube. Not cheap but works 99% of the time.
Old 21st September 2017
  #3
Here for the gear
 

Hi-This NOT the tube!
there is something happening in our atmosphere that is not being reported. Pro builders will not report this- due to
'vulnerability' issues and ego. I lost 10 db in my world class M49 with teflon caps and a monster psu..no warning!
There is only 3-4 volts on the secondary of a BV11 before the tube preamp..what I believe is happening is current induction.
We have a NUMBER of brown dwarfs in the solar system causing havoc with our climate. 41 volcanoes erupting and a steady rise of global quakes from 4500 avg. per year to 118,400 in 2014- when they closed down the USGS geosurvey legacy listing.
As they connect via that black hole you see on them, plasma encircles magnetic field lines forming a close loop with huge coronal holes. This changing magnetic field induces current in our core and mantle! Power station transformers are being blown out left and right.
Key? With 2 plasma field or solar winds colliding and ionizing helium3/4 by their presence in our atmosphere, a Fission Cascade results
or Triple Alpha process where electrons rain down on us at 50 -150 MeV(100MeV is a cosmic ray!) and this constitutes an xray background which is heating our oceans from the top(weather changes..). These electrons are ATTRACTED to magnetic fields in tube transformers. I think- due to the presence of resistance in our transformer secondaries, some current is being induced by Farady's Law of electromagnetic induction and this results in VOLTAGE- which could create MORE resistance or opposition to our current going to the next stage. A client of mine is having the SAME problem with his pultec clone right now!! Give me more info.. and I may be able to help you. I've changed tubes and capsules- checked everything. NO Change...
* Just use the 46-50 db setting on your REDD 47 and play HARDER - you will win this!
Old 21st September 2017
  #4
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spambot_2's Avatar
It's most likely the tube.
You may open the mic and see if anything is evidently broken/blown up, you may want to check if all of the resistors and caps are allright using a multimeter, but I'm confident you'll solve the problem by changing the tube.
Old 21st September 2017
  #5
Lives for gear
 

Quote:
Originally Posted by devon haas View Post
Hi-This NOT the tube!
there is something happening in our atmosphere that is not being reported. Pro builders will not report this- due to
'vulnerability' issues and ego. I lost 10 db in my world class M49 with teflon caps and a monster psu..no warning!
There is only 3-4 volts on the secondary of a BV11 before the tube preamp..what I believe is happening is current induction.
We have a NUMBER of brown dwarfs in the solar system causing havoc with our climate. 41 volcanoes erupting and a steady rise of global quakes from 4500 avg. per year to 118,400 in 2014- when they closed down the USGS geosurvey legacy listing.
As they connect via that black hole you see on them, plasma encircles magnetic field lines forming a close loop with huge coronal holes. This changing magnetic field induces current in our core and mantle! Power station transformers are being blown out left and right.
Key? With 2 plasma field or solar winds colliding and ionizing helium3/4 by their presence in our atmosphere, a Fission Cascade results
or Triple Alpha process where electrons rain down on us at 50 -150 MeV(100MeV is a cosmic ray!) and this constitutes an xray background which is heating our oceans from the top(weather changes..). These electrons are ATTRACTED to magnetic fields in tube transformers. I think- due to the presence of resistance in our transformer secondaries, some current is being induced by Farady's Law of electromagnetic induction and this results in VOLTAGE- which could create MORE resistance or opposition to our current going to the next stage. A client of mine is having the SAME problem with his pultec clone right now!! Give me more info.. and I may be able to help you. I've changed tubes and capsules- checked everything. NO Change...
* Just use the 46-50 db setting on your REDD 47 and play HARDER - you will win this!
Seriously, that is one hell of a first post...
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