early (pre-1971) edge-triggered D flip-flop ICs

Ethan Dicks ethan.dicks at gmail.com
Thu Jul 20 13:08:48 CDT 2017


On Thu, Jul 20, 2017 at 11:35 AM, Norman Jaffe via cctech
<cctech at classiccmp.org> wrote:
> Or, in today's dollars - $58. Ouch.

Wow!  That's many dollars per flip and or flop!

> On Wed, Jul 19, 2017 at 11:29 PM, Ethan Dicks <ethan.dicks at gmail.com> wrote:
>> I have no datasheet, but I have examples on DEC M-series FLIP-CHIP
>> modules from my PDP-8/L, c. 1968.
>>
>> I am pretty sure I have examples with 1968 date codes and possibly
>> 1967 date codes.
>
> Thanks! Also, the 1967 Allied catalog lists the SN7474 (flat pack) and
> SN7474N (plastic DIP), priced at $8.00.


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