That's a lot cheaper than the first logic ICs I remember, the Fairchild µL
series RTL logic ICs. Two 2-input NOR gates, or a single JK flop, or 4?
inverters per package. 10-wire transistor cans.
paul
> On Jul 20, 2017, at 11:35 AM, Norman Jaffe via cctech <cct...@classiccmp.org>
> wrote:
>
> Or, in today's dollars - $58. Ouch.
>
> From: "General Discussion" <cct...@classiccmp.org>
> To: "cctalk" <cctalk@classiccmp.org>
> Sent: Thursday, July 20, 2017 1:35:47 AM
> Subject: Re: early (pre-1971) edge-triggered D flip-flop ICs
>
> On Wed, Jul 19, 2017 at 11:29 PM, Ethan Dicks <ethan.di...@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.
