No, electret mics have a buffer amp built in. You just need a few volts of DC bias to make them work. Plenty of info can be found on the internet.
73
-Jim
NU0C
On Tue, 07 Feb 2023 08:34:46 -0800
"Bill Leonard N0CU" <billincolo73@...> wrote:
The get an electret mic to work will I need to build an audio amp to increase the output level? If so, about how much gain is needed?
--
Bill N0CU
Jim Shorney