SBL#3 DIY microphone preamp for lower noise recording with onboard soundcard
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- Опубликовано: 29 авг 2024
- In this video I have designed, build and test two mic preamp circuits. I also briefly describe the circuit diagram I have come up with. Comment below if you spot any possible improvements :-)
Susah nak dapat video macam ni dpd malaysia..i love it!!
Terima kasih atas sokongan ☺️
you are a legend keep up !
I love it good
Keep uploading videos like this
Thanks a lot for supporting! ☺️
I love you my guy
You're the best
Very nice!
Sir... this video is really interesting.... sir may know which spice software you have used for the circuit simulation?
Hi, thanks a lot for the interest! I used NI Multisim 10. *EhemmCrackedEhemm*
Mantap sekali bapak terima kasih banyak!!
I don't understand the purpose of the four 1n4148 diodes. Please explain. Thank you.
Hi, thanks for your interest! The four diodes are rudimentary output voltage clamp protection. They limits output voltage swing to about +-1.2V peak to peak. Should be plenty for microphone input of recording device.
Can i use piezo pickup??
Hi! Thanks for your interest ☺️ I am not familiar with piezo pickup, but it may have quite small signal with high impedance, you can try the dynamic mic circuit. But wouldn't surprise if some tweak needed.
Hello, I want to prevent the noise of a CNC machine. Will this circuit work? Please help.
I want to know if you can help me with this
Hi, good day to you! What kind of noise? Need more description. Is it high pitch noise when the motors are idling?
yes , sir it has @@solderbridgelab4003
I want a 5-axis CNC machine to run quietly, so I'm trying to build a circuit with an opamp, like yours, to prevent noise by sending a signal opposite to the frequency it receives.
@@solderbridgelab4003
What type of capacitor you use for c1,c2,c6 and c7 ?
Hi, I assume for electret mic circuit. For C1 and C2, best to use non-polarized caps at higher capacity for better low freq response. For example MLCC or even electrolytic cap ( there are non polarized ones). C6 and C7 are supply bypass caps so MLCC should suffice. Thanks for the interest 😄
@@solderbridgelab4003 thank you so much for your reply🥰