Waow..thats amazing audioguru..I've got something to really aim for now. I love seeing stuff like that, really inspirational. Is there anythng different about the function of your stethoscope?
Questions:
1.) A power darlington transistor. Is their only one type? Would I use this for both 2N3904 "and" 2N3906? I assume it has the same pin configuration, i.e. C B E?
2.) The darlington transister is used becuase the 2n3904/06 can't drive the lumiled load?
3.) The "current limiting resistor" which you say needs changing, is this the one that would be connected to the LED (lumiled)?
4.) "The dimming voltage would be wrong, but that can be changed by adjusting the power supply voltage" Would that be the power supply into pins 3, 6, 10 and 13? If yes, I assume the voltage would need to increase.
5.) What about the capacitors. Wouldn't they need to be bigger??
(sorry so many questions)
6.) Heat shrink for a darlington transistor.... what is it,, a piece of metal???? can you recommend something via
www.rswww.com......?
Just thought - Why did you build a stethoscope?
Thanks audioguru
Timbo