EMF generator from audio speaker

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SUMMARY

This discussion centers on the feasibility of using an audio speaker as an electromagnetic field (EMF) generator by removing the paper woofer and connecting it to a function generator and amplifier. The user aims to explore the effects of frequencies, particularly the Schumann resonance, which operates between 3 Hz and 60 Hz. However, it is concluded that the Schumann resonance does not have beneficial effects on the human body, categorizing the idea as pseudo-science and leading to the thread's closure.

PREREQUISITES
  • Understanding of electromagnetic fields and their generation
  • Familiarity with audio transducers and their components
  • Knowledge of function generators and amplifiers
  • Basic principles of sound frequency and resonance
NEXT STEPS
  • Research the principles of electromagnetic field generation
  • Learn about the functionality of audio transducers in EMF applications
  • Explore the scientific basis of Schumann resonance and its effects
  • Investigate the use of function generators and amplifiers in experimental setups
USEFUL FOR

Individuals interested in experimental physics, audio engineering, and those exploring the scientific validity of frequency-based therapies.

gaba
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Hello everybody, I am trying to figure out how to build an electro magnetic generator in order to stimulate my home and my brain with beneficial frequencies such as the Schumann resonance and doing perceptive experiments on all the surrounding frequencies.
I was wondering if an audio transducer such a speaker could act as a EMF generator, when the paper woofer is removed and the device connected to a function generator and an amplifier, in order to play the sound, with the magnet only.
Would it be the same thing?
 
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The Schumann resonance has to do with the ability of extremely low frequency EM waves between 3 Hz and 60 Hz to use the Earth's surface and the ionosphere as edges of a waveguide. Despite what you may have heard, it has no beneficial effects on the human body. Since the idea is pseudo-science, which is against PF rules, I am locking this thread.
 
Most likely this can only be answered by an "old timer". I am making measurements on an uA709 op amp (metal can). I would like to calculate the frequency rolloff curves (I can measure them). I assume the compensation is via the miller effect. To do the calculations I would need to know the gain of the transistors and the effective resistance seen at the compensation terminals, not including the values I put there. Anyone know those values?

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