Hey all, I've started a new project. I'm making a small microphone, and decided to stick with the basic schematic. Keep it simple, ya know?
Here's the schematic. It's also attached for those who don't want to load another site - http://www.linkwitzlab.com/images/photos/mic-amp.jpg
So, here are my questions:
1) The OPA134 is rated at 18V absolute max. If I'm reading this schematic correctly, the two 9Vs are wired in series which would send 18V into the opamp. Wouldn't this be risky? I'm new to ICs, so I'm not sure if I'm missing something.
2) I'd like to add an LED on-light for this, because I hate accidentally leaving this stuff on. Would the LED go between the battery and the opamp? Also, if that's where it goes, the resistor should be 1600 ohms correct?
Thanks for the help! If anyone has suggestions for audio opamp tutorials (starting from the beginning!) that would be great too! I've been reading Rod Elliot's page but more would be great for the learning process.
Here's the schematic. It's also attached for those who don't want to load another site - http://www.linkwitzlab.com/images/photos/mic-amp.jpg
So, here are my questions:
1) The OPA134 is rated at 18V absolute max. If I'm reading this schematic correctly, the two 9Vs are wired in series which would send 18V into the opamp. Wouldn't this be risky? I'm new to ICs, so I'm not sure if I'm missing something.
2) I'd like to add an LED on-light for this, because I hate accidentally leaving this stuff on. Would the LED go between the battery and the opamp? Also, if that's where it goes, the resistor should be 1600 ohms correct?
Thanks for the help! If anyone has suggestions for audio opamp tutorials (starting from the beginning!) that would be great too! I've been reading Rod Elliot's page but more would be great for the learning process.
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