MITS/Pertec Icom Attache

From: Rich Beaudry <r_beaudry_at_hotmail.com>
Date: Thu Nov 16 15:02:06 2000

Hello all,

Recently I acquired an ICOM Attache (the one on eBay right now is NOT
mine!). I had some questions, and posted in com.os.cpm, since I figured
someone would know, even though it was off-topic (sorry :-) ).

Since then, through other sources, I got my questions answered, and even
found two places to get manuals for this beast (shameless plug: Herb
Johnson -- http://pluto.njcc.com/~hjohnson and Steve Shepard --
http://home.earthlink.net/~steveshepard/MITSmanuals/MANUAL.htm).

However, since this machine is basically an Altair 8800b Turnkey with a
Keyboard and Video Card, I thought I'd share the information here... I will
be completely documenting this, and adding it to my web site, but I don't
know when that will be...

>From the back panel label:

PCC Microsystems Division
Model #: 600
Part #: 200801
Serial #: 100-000032
115V / 60Hz

The backplane is a 10-slot MITS S-100 backplane. The power supply is what
appears to be a standard S-100 supply.

The cards inside:

- MITS 88-VI (RTC), 1975
- MITS 16MCS Static, 1977
- MITS Altair 8800b Turnkey Module, 1976 (contains two 1702A EPROMs --
TURMON and MBL)
- MITS 88-4 PIO, contains two MC6820 chips, dated 7646
- MITS 88 UIO, 1977, contains an AY-5-1013A (UART?), and a MC6850 -- Also
cables to what is labeled a cassette interface on the back panel.
- MITS A/D D/A Converter, 1976
- MITS 8800b CPU Board, contains AMD 8080A dated 7636
- another MITS 16MCS Static, 1977
- Two boards bolted together, labeled "Video Bd. 1" and "Video Bd. 2".
Board "2" has a coax cable attached that ends in a BNC connector on the back
panel (composite video out?) The internal keyboard also connects via ribbon
cable to this assembly, as does the Turnkey Module.

Boards and backplane are very clean, no heat spots, no damage that I can
tell. Power supply also very clean, and no visible damage.

Back Panel contains:

3 25-pin "D" connectors labeled "Analog I/O", "No. 1 I/O", and "No. 2 I/O"
3 jacks labeled "Cassette" and "In", "Out", and "Rem." (remote?)
Another 25-pin "D" connector labeled "SIO Port 30"
A momentary reset switch, a power switch, power cord receptacle.
A BNC connector

Rich B.

(I subscribe to the digest, so I can't reply instantly...)
Received on Thu Nov 16 2000 - 15:02:06 GMT

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