Weird Lear-Siegler ADM-3A board

Eric Smith spacewar at
Tue May 29 02:10:14 CDT 2018

On Fri, May 25, 2018 at 3:30 PM, Adrian Graham via cctalk <
cctalk at> wrote:

> Wow, good spot! This one isn’t badged but we just assumed it had fallen
> off. Just as I’m typing this he’s messaged me to say it’s actually the
> ADM-3A ‘10th Anniversary edition’. The manual is on bitsavers:

It might have _started_ its life as an ADM-3A 10th Anniversary Edition, but
it isn't one any more. The PCB in the photo is the Zentec ADM3 Retrofit.

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