PDP-8/L: multiple failed 7440's date code 7005

From: Rick Bensene <rickb_at_bensene.com>
Date: Sat Mar 1 22:34:00 2003

Charles wrote:

> All of them were labeled "DEC7440" with a date
> code of 7005!
>
> Seems like the chip
> manufacturer must have had a few specks of dust in the fab
> room that day in Apr. 1970...
>

Sorry I don't have anything to add about the apparently failing group
of 7440 IC's, but I do have a comment about date codes.

The date code of 7005 would actually be late January, 1970,
specifically,
somewhere during the week of Sun-25 through Sat-31.

The last two digits of the date code are the week, not the month, of the
year.

Rick Bensene
Received on Sat Mar 01 2003 - 22:34:00 GMT