28 Jul
2020
28 Jul
'20
8:55 p.m.
Jay Jaeger via cctalk wrote:
On 7/28/2020 6:48 PM, Carlos E Murillo-Sanchez via
cctalk wrote:
Thanks!? These chips were in a lot that had other digital chips that I
was able to identify, so I thought that they were also digital. The 709
might well be right, as it is a DIP14 package.? The other one, though,
is a DIP16 package, and from what I've seen the ua730 only came in 8-pin
cans, so it remains a mistery.
carlos.
So, what would two chips marked
F? U6A7709393
???? 7043
and
F?? 7306
?7-6987
be?
Carlos.
U6A seems likely to me to be referring to a linear chip, rather than a
digital one, though the 6 between the mu (U) and the A is not something
I am familiar with. I also don't get any hits in the catalog looking
for 770.
As a guess, it is might be a ua709 Operational amplifier.
730 might be uA730 - a differential amplifier.
Both were pretty common.
JRJ