I think you'd have more luck posting this on an electronics list.
Perhaps:
http://groups.yahoo.com/group/Advanced_Electronicshttp://groups.yahoo.com/group/Electronics_101Steve
--- In Homebrew_PCBs@yahoogroups.com, dg140@f... wrote:
> I forget if I posted this question here. I am redoing a PCB, and I
must
> replace the quad 3467 and 3468 transistors array chips. They have
the DH
> prefix. I am looking at replacing them with either the 2N2907 or
the
> 2N3905 discreet transistor. I cannot access those pesky pdf files,
and
> off-hand I can't see the differences between the 2N2907 and
> 2N3905 transistors. Can someone let me know what the differences
are?
>
> Also, I know that a 2907 quad transistor array chip exists, but is
there
> something like this for the 2N3905? I find a 5-transistor array,
but not
> a quad.
>
> Thanks,
> Charles