Hello all!
I am just getting back into electronics, after taking a basic class 20 years ago. So it's like starting all over again.
I have a request for schematic advice:
The project I'm trying to design and build is a circuit that will flash an LED IN TIME with a snap of my finger, with a minimum of parts...and as miniturized as possible.
Can I take a electret mini-microphone and have it feed into the base of a single transister, and amplify that tiny signal enough to result in a coresponding flash of an led (based on a 4.5v circuit)? The trick is that I'm trying to build this whole unit (including the 3 button batteries) that will fit inside a micro-mag (single AA) flashlight housing. In other words, the entire assembly needs to be no larger than a AA battery type penlight housing...so I can't build a huge amplification circuit with many components.
So, (to sum it up) I'm trying to amplify a tiny microphone signal enough to light an LED, and use only a small number of components (that will fit inside a single AA cell flashlight).
Am I dreaming that this can be done with only one transister and a minimum of other components?
I want to have my (modified) "flashlight" sitting on my desk and "flash" at me when I snap my fingers (as if it was flashing at me to the snap of my fingers).
Thanks for any help or advice, folks!