[sdiy] Making toast with chips

[Seb Francis]

KA4HJH wrote:

> >> >I notice the hotter ones generally (though not exclusively) have a P
> >> >suffix and are dual types while the cool ones are N suffix.
> >>
> >> <smartass mode>
> >>
> >> P = poor
> >> N = nice
> >>
> >> </smartass mode>
> >
> >BTW, I think the P suffix ones are Texas Instruments and the N suffix ones
> >are Phillips.  Could be other manufacturers using those letters too tho?
>
> P is ceramic, N is "plastic". This is *supposed* to be a standard.
> --

Hmm, not so for the TI NE5532P - they are plastic.  Still I guess standards (like) rules are there to be broken!