Re: CBM's CP/M, Z-80 carts for the 64

From: Gerrit Heitsch <>
Date: Mon, 24 Dec 2012 09:52:03 +0100
Message-ID: <>
On 12/24/2012 06:41 AM, Bil Herd wrote:
> I tried to use some of the CBM versions of LS but sadly none met my
> real-need timing requirements that I remember except for some real slow OC
> stuff.  One time I found Russian 7406/7's in one of my designs in the
> Tokyo office which I had a hard time with politically at the time. (I had
> been brainwashed by the US Army that anything that supports their tech at
> the time supported their war machine) I found that their version was like
> 1 or 2 ns slower in one direction and so wrote it off the vendor list for
> that reason.   I had two rules after that as weird as it sounds; don't
> feed me whale, and don't put my "cold war enemy's" chips in my computers.
> The cold war was in full swing in my defense :(

They did it anyway... I have seen lots Commodore systems that used 
EL7406, EL74LS14 and others. Those have no makers logo, come in a brown 
casing instead of the usual black and are, as far as I know, russian in 

As far as the MOS77xx are concerned... I have a C16 with a 7714 in it, 
that's a replacement for a 74LS02. Still works.


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Received on 2012-12-24 09:00:04

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