WOW! �� MICROPHONE from the TRANSFORMER!

Microphone from a transformer ?!? What are you doing??!  But as it turns out - after I had collected a very sensitive amplifier of IC https://youtu.be/B9wzapxh0NM had to get freaky with the resistance setting of the frequency clock generator of the IC - it depends heavily on the volume and quality of sound, but my version is 20 kω for 3 V power I decided to do some long-planned experiments - to test how they behave as a microphone, miscellaneous Electronic Components.

Well, everyone has heard about Speakers and Squeakers - this is not interesting, but Relays, reed Switches, Transformers as a microphone - this will be more interesting.