Hey all! I'm an older guy working my way into electronics for kicks.
I'm having a heck of a time with my Transistors I bought from Radio Shack.
How do I know the "right" voltage to turn it fully "on"?
Transistor: 2n3904 (
Datasheet)
It seems that voltage is running through from the Collector to the Emitter without the Base having power being applied to it.
Any reason why this would be?
Also, I want to be able to run a siren with a 12V DC supply with this same transistor - is that possible?
Sorry for the noob questions...
darrin
**broken link removed**