Found a rail of these things around in DIP-8 package. Date code 1981
Anyone have an old Signetics catalog around from that era? Can't find anything on the net.
Thanks and best regards,
Best regards, Spehro Pefhany
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Neither Signetics' 1976 nor 1989 linear catalogs show any promise. No part numbers contain '2003'.
Sorry.
Of parts in that DIP-8 package, the 1979 book lists: 80% op-amps and pre-amps, NE555 timer, NE592 video amp, their NE561-7 PLL series, MC1496 multiplier, a couple ULN-series ICs, e.g. the ULN2008 gain block.
That's about it.
James Arthur
OK, thanks, it must be house numbered or something.
Looks sort of like a single op-amp from measuring the diode drops (pin
4 is the substrate, pin 7 has the lowest diode drop and pins 2&3 have the highest).Maybe it's an 8-pin version of the 25120:
Best regards, Spehro Pefhany
S20xx were static shift registers in metal 10pin TO-100.
An analog delay line?
RL
Ah so, I remember those..
Quite possible! .. it was in with some audio stuff including some obsolete 8 x 2 -channel mixer ICs.
Best regards, Spehro Pefhany
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