antonyrajan
Newbie level 3
i need to know companies providing free samples of electret microphones
thanking you
thanking you
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I do not know any company offering electret microphones for free. You can find such good microphones in many discarded old tape recorders/players or in hands-free earphone-microphone sets for cell phones. Those microphones usually survive best of all other components. Do not forget they need to be fed by DC 3...12 V through a 12k...50k resistor on their output.
thank u for the replay...
i have one more doubt..can we use electret microphone with out inbuilt FET pre amplifier (Electret condenser cartridge) as a speaker ??
which type of speaker that we can use as a microphone where speaker size should be less than 4mm.