| Electronics > Beginners |
| Pre-amp to connect microphone to speakers |
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| Audioguru:
I think the electret mic preamp should be like this: |
| spec:
Hi AG, Fancy seeing you in these parts. :) Nice mods- I didn't do any optimization on that circuit, so it was really an outline. I would suggest changing the opamp to a TSX711 or OPA191 as part of the improvements. As you say the OPA134 is not all that happy with a low Vcc. |
| Audioguru:
Hi again, Spec. I goofed on making changes to the schematic, this one is best: |
| SoundFan:
Hello Thanks for all your great replies ! I'm sorry that I didn't reply until now, I've been quite busy these days with my studies and meetings as well as some research project. I will try to test out these circuits and use 9V instead of 5, maybe this will finally make my project work. |
| spec:
--- Quote from: Audioguru on November 25, 2018, 03:49:01 pm ---Hi again, Spec. I goofed on making changes to the schematic, this one is best: --- End quote --- :) I goof all the time |
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