Hello

I want to wire up an electret microphone. I found such a device on the following website.
https://sayal.com/store4/prodetails.php?SKU=245202. The device does not come with a
schematic.

Any help would be appreciated.

Juan

 

You should connect it as follows:


You will have to experiment to find which lead is ground.

In my limited experience the load resistor (RL)should be between 3.3k and 4.7k. Just make sure than when everything is connected and powered-up that there is at least 500 millivolts across RL.

Vs should be 12 volts or below. It would be better if you could buy one with specifications available, but these are not so hard to use.

 

You should connect it as follows:
View attachment 332205

You will have to experiment to find which lead is ground.

In my limited experience the load resistor (RL)should be between 3.3k and 4.7k. Just make sure than when everything is connected and powered-up that there is at least 500 millivolts across RL.

Vs should be 12 volts or below. It would be better if you could buy one with specifications available, but these are not so hard to use.

If you look carefully at the pcb to which the pins attach, then there are usually some tracks which make contact with the case. That side is ground.

 

If you look carefully at the pcb to which the pins attach, then there are usually some tracks which make contact with the case. That side is ground.

 

I want to wire up an electret microphone.

Why?
To what?
To answer your question, we need to know more about what you are trying to do.
What power sources to you have for the circuit?
What is the mic signal used for?

ak

 

Hello,

Have a look at the following page about electret measurement microphone use:
https://sound-au.com/project93.htm
fig 8 shows the modification of a cheap electret mic.

Bertus