Re: Help identifying IC

2018-01-22 Thread Josh Dersch via cctalk
Thanks, all! I'll start digging into clock ICs and see if anything looks like it matches what's in there. - Josh On Sat, Jan 20, 2018 at 11:03 PM, Ethan Dicks wrote: > On Sat, Jan 20, 2018 at 9:06 PM, Josh Dersch via cctalk > wrote: > > Hi all

Re: Help identifying IC

2018-01-20 Thread Ethan Dicks via cctalk
On Sat, Jan 20, 2018 at 9:06 PM, Josh Dersch via cctalk wrote: > Hi all -- > > I picked up this little toy at VCF West last summer: > > https://1drv.ms/i/s!Aqb36sqnCIfMouYd0HV0ZThE3FnE_Q Cute! > As far as I can tell, it's supposed to be a clock Sure looks like one. >

Re: Help identifying IC

2018-01-20 Thread Brent Hilpert via cctalk
The mid-70s saw a plethora of dedicated-logic LSI TOD clock chips in 24-28 and sometimes 40 pin packages. Most prevalent IME were those made by National, Mostek and Fairchild. Going by the labelling for the other two chips, fair chance the ID of the big chip is staring right at us: MPS 7123.

Help identifying IC

2018-01-20 Thread Josh Dersch via cctalk
Hi all -- I picked up this little toy at VCF West last summer: https://1drv.ms/i/s!Aqb36sqnCIfMouYd0HV0ZThE3FnE_Q As far as I can tell, it's supposed to be a clock and I assume it was a kit -- this one was definitely hand-assembled.  It's powered by two AA's (apparently, there are no