Re: 250466 PCB curiousness

From: silverdr_at_wfmh.org.pl
Date: Sun, 7 Jul 2019 22:52:42 +0200
Message-Id: <67634C50-7F3D-4E2B-92A8-6FE9975B2EA6_at_wfmh.org.pl>
> On 2019-07-07, at 21:43, Jim Brain <brain_at_jbrain.com> wrote:
> 
> Memory in a 250466 PCB went flaky, so I tried my hand at repair.  The PCB is the 3 ROM version, but with 4164 DRAMs.  After desoldering the DRAMs, socketing, and installing some new DRAMs (all working now), I decided to see if I could switch the unit over to SRAM.  It appears I and some other folks had similar ideas,

I recall Gerrit to be among those who successfully did it before (several) others…

-- 
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Received on 2020-05-29 21:47:45

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