Any interest in "newer" hardware, software?

[Brent Hilpert]

On 2020-Jul-28, at 4:48 PM, Carlos E Murillo-Sanchez via cctalk wrote:
> 
> So, what would two chips marked
> 
> F  U6A7709393
>      7043

F   : Fairchild

U   : monolithic device (as opposed to e.g. hybrid)
6A  : package, DIP (6), 14-pin (A)
7709: circuit/function code. As Jay suggests, a 709 op amp.
39  : temp range, 0::+70C for linear types
3   : I don't know, in 1966 this was a reserved-for-future-use digit position.

7043: date code of course.

I've seen other analog ICs from Fairchild similarly labeled, e.g. U5B7741393 for a 741 op amp.


> and
> 
> F   7306
>  7-6987

My guess is a house number 7-6987, with a 7306 date code, made by Fairchild.