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From: Lawrence Statton NK1G <lawrence@senguio.mx>
Newsgroups: alt.folklore.computers,comp.sys.raspberry-pi
Subject: Re: self-modifying code, Is it a lost cause?
Date: Mon, 04 Jul 2016 16:28:41 -0500
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Bob Eager <news0006@eager.cx> writes:
>> Either transistors or DTL--I'm seeing two versions of the story.
>

The R-series modules the original 8 was built with were discrete (or
thick-film hybrid for some revs) transistors implementing DTL gates.

Later 8s used TTL logic in standard packages of the day.