19 Mar
2018
19 Mar
'18
12:01 p.m.
There is two different kinds of test. One is to give them a fixed dose and then check to
see if they are still operational. The other is to zap them until they fail, and then
diagnose the failure/s.
Dwight
________________________________
From: cctalk <cctalk-bounces at classiccmp.org> on behalf of Al Kossow via cctalk
<cctalk at classiccmp.org>
Sent: Monday, March 19, 2018 10:35:47 AM
To: cctalk at classiccmp.org
Subject: Re: Four Unibus boards from radiation dose measurement system.
On 3/19/18 8:57 AM, Lyle Bickley via cctalk wrote:
> 2914 chips. One board has some kind of dedicated
memory one board has
> 4 TRW chips which I think are AD converters.
>
It's a frame buffer, you can see the 10422 lookup tables behind the TRW video DACs