7 Dec
2006
7 Dec
'06
8:59 a.m.
Thanks Dave, that info is consistent with the fragmentary identification I found. Oh well,
looks like I won't be building a shift-register memory device with these!
Jack
Dave McGuire <mcguire at neurotica.com> wrote: On Dec 6, 2006, at 10:35 PM, Jack
Rubin wrote:
I've come across a few old ICs and haven't
been able to find out much
about them - lots of places on the 'net are willing to sell them but I
couldn't find a data sheet - only one clue that they _might_ be dual
op-amps. They are small cans (TO-??) with eight leads protruding from
the bottom, marked SG 1458T with a 1976 date code. Any help
identifying
them would be appreciated. Kind of hoping they're really some sort of
shift register ...
1458 is the "base" number for a frequently second-sourced dual op-
amp. It is basically a dual 741. That package is most like a TO-99.
-Dave
--
Dave McGuire
Cape Coral, FL