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Re: Unusual Apple // card
In article <1f9lqno.i6ku96eynkjkN%dempson@actrix.gen.nz>, David Empson
<dempson@actrix.gen.nz> wrote:
> John L <jlogo@zip.com.au> wrote:
>
> > On Sat, 23 Mar 2002 01:21:42 +1200, dempson@actrix.gen.nz (David
> > Empson) wrote:
> >
> > >Do any of the small ICs have numbers which _don't_ start with 74LS? I
> > >see what look like two 8 pin chips. What are their part numbers?
> >
> > Ok, looking at the board closely I see MC14669B CA3140E DM7408N.
> > The rest are largely 74LS series chips. The EPROM has a blue jumper
> > sitting next to it. One can also see a three pin connector next to
> > the EPROM (see picture #3).
>
> I haven't been able to track down the MC14669B. It is too old to be
> listed in any of the obvious Motorola reference books we have at work.
I don't believe such a part exists. How about MC14069? That's a simple
inverter, CMOS.
--
Chris Smolinski
Black Cat Systems
http://www.blackcatsystems.com/
Macintosh Softwware - Specializing in audio, educational, and amateur radio