And can an electret mic be used in place of a condenser mic and vice versa? The only thing that is different is a wider frequency range of the electret?Generally, yes
I want to know if i can use EITHER an electret capsule or a condenser capsule for a hearing aid device that uses a transistor to preamplify or to buffer (?) a signal for a NJM2073 IC mono amplifier (mono in BTW). I want to be able to use both capsules (electret and condenser) for the same circuit.Not really. Electrets capsules usually have a bulit-in jfet transistor, usually meant to operate at a few miliamps current. Condenser studio mikes have their own amplifier built in, usually meant to operate with 48V bias voltage. Condenser capsules should have none of that and be just a two plates in mid air.
It would be better if you showed what you want to replace with what and then talk about if the replacement is possible.
How can you tell that is tailored for an electret? Sorry, but i still lack the knowledge to conclude it.Can you post the datasheet of your condenser capsule? The circuit looks like to be tailored to electret mikes.
Electret-microphones are very small and need a low voltage supply.
3 volts here.
View attachment 103329
So all electret mics need a low voltage to operate, while condenser mics need bigger voltage?Electret-microphones commonly use jfet input and condenser mics use a 48 volt "phantom" supply.
what do you mean by saying electrical circuits software? To do what thing? For example simulation, pcb design....?can u suggest me electrical circuits software
What do you mean? Software to do what? Simulate, design pcb, or what?can u suggest me electrical circuits software
I want to know if i can use EITHER an electret capsule or a condenser capsule for a hearing aid device that uses a transistor to preamplify or to buffer (?) a signal for a NJM2073 IC mono amplifier (mono in BTW). I want to be able to use both capsules (electret and condenser) for the same circuit.
The schematic i use is here. I will replace thought the TDA2822M with its contemporary equivalent NJM2073, which shows better proporties.
Thanks everyone!