[Elecraft] OT: Difference between PN2222 and PN2222A?

[Alexandra Carter]

My understanding is the 2222A is the military spec version. Maybe I'm  
wrong, but it's got to be something like that, either that or a  
slightly later version...... you might try googling a bit, spec  
sheets for common parts can be pretty easy to find, I'm always  
looking up the simple stuff myself. 73 de Alex NS6Y.

On Jul 25, 2006, at 11:28 AM, Ben Hofmann KB1AHR wrote:

> What's the difference between a PN2222 and a PN2222A transistor?   
> When used as a switch, can a PN2222 be used as a substitute for the  
> PN2222A?  Thanks.
>
>   -Ben  K1NT
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