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Author Topic: Gudeman caps M49 C5  (Read 337 times)

ratite

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Gudeman caps M49 C5
« on: January 30, 2021, 02:01:05 am »

I wondered,are Gudeman 1 microfarad/160V? caps as well regarded as the Bosch or Seimens/Halske?

Would I hear a difference if I swapped out the Gudeman in my M49b?

Was this an original part?

What are the preferred current manufacture PIO's for coupling caps,or is it preferable (soundwise,not for authenticity/resale) to hunt down the originals?
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Kai

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Re: Gudeman caps M49 C5
« Reply #1 on: January 30, 2021, 09:48:31 am »

I cannot comment on the audibility of capacitor differences, except with the really bad ceramic ones that are not suited for audio anyway.

I can measure capacitor distortions down to -155 dB, and there are very few that are below this line.
Paper/oil types (the ones that are relevant for this posting) have distortions widespread in the range around -120 dB.

Every type and model of capacitor is different, and there are large unit to unit variations within a batch of the same model.

When historic mics where built, the manufacturers chose what was available and suited for the job.
Had their choice been a “lucky punch” or doesn’t it matter?
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klaus

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Re: Gudeman caps M49 C5
« Reply #2 on: January 30, 2021, 01:23:36 pm »

Please share with forum readers those capacitor types and brands that are at the lower end of distortion and how using them would affect performance.
Thanks!
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Klaus Heyne
German Masterworks®
www.GermanMasterworks.com

RuudNL

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Re: Gudeman caps M49 C5
« Reply #3 on: January 31, 2021, 04:47:03 pm »

Of course one can question how important distortion below -120 dB (0.0001%) is...
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ratite

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Re: Gudeman caps M49 C5
« Reply #4 on: February 01, 2021, 09:51:26 am »

Any thoughts on the original questions?
If you are restoring an M49 what cap do you choose?
Is the Gudeman likely original?
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RadarDoug2

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Re: Gudeman caps M49 C5
« Reply #5 on: February 01, 2021, 03:51:15 pm »

So Kai, can you hear distortion products at -120 in the presence of signal? Thems some super ears!
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