Always consult a professional knowledgeable hearing professional.
At your own risk. Always protect your ears and hearing. Damage can be irreversible.
This is for study.
Schematics (circuit diagrams) of descrete transistor including Behind the ear (BTE), electron tube (electronic valve) types can be found in the brilliant Philps Technical Review.
Many of these scientific papers are written by P. Blom.
Examples:
Electron tube hearing aid schematic and description:
http://www.extra.research.philips.com/hera/people/aarts/_Philips%20Bound%20Archive/PTechReview/PTechReview-15-1953_54-037.pdf
Transistor hearing aid schematic and description:
http://www.extra.research.philips.com/hera/people/aarts/_Philips%20Bound%20Archive/PTechReview/PTechReview-19-1957_58-130.pdf
Behind the ear hearing aid descrete transistor schematic and description:
http://www.extra.research.philips.com/hera/people/aarts/_Philips%20Bound%20Archive/PTechReview/PTechReview-27-1966_67-258.pdf
How would these brilliant few components designs in class A (electrons flowing all the time) sound like as recording studio quality microphone preamplifiers?
For example used with mic input transforms on world class omnidirectional Sennheiser microphones etc. Using an output transformer for low impedance balanced out etc...
No comments:
Post a Comment