Re: Unusual Apple // card

[dempson@actrix.gen.nz (David Empson)]

Chris Smolinski <cps@blackcatsystems.com> wrote:

> 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.

Quite possible.  The picture isn't clear enough to read the digits
beyond 'MC14..9B', with the middle two potentially being anything with a
curve on the bottom of the digit (0, 6, 8, 9).

-- 
David Empson
dempson@actrix.gen.nz