29 May
2018
29 May
'18
12:07 a.m.
On Fri, May 25, 2018 at 1:58 PM, Adrian Graham via cctalk <
cctalk at classiccmp.org> wrote:
Hi folks,
A friend of mine has said ADM-3A and is baffled by the tiny board it
contains, not the usual ?covering entire base? discrete logic board they
normally have. Centre of this board is the Nat Semi NS405 ?display
processor on a chip? which is obviously why the board is so small but
neither of us have seen this before in a 3A.
Anyone else? Pic at http://www.binarydinosaurs.co.uk/tonyADM3a.jpg <
http://www.binarydinosaurs.co.uk/tonyADM3a.jpg>
That's the Zentec ADM3 retrofit:
http://bitsavers.trailing-edge.com/pdf/zentec/Zentec_ADM3_Retrofit/
