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New Old Stock Hercules, MDA, CGA 8 Bit Graphics Adapter

Junk Junkie

Member
Joined
Jan 7, 2012
Messages
30
Location
East Tennessee
I've got a few of these available. They are new old stock Graphics adapters. I have tested this card in an IBM PC 5150 with IBM 5151 Display. Works Great. Includes Instructions and jumper settings.

These are the specs:

Mono/Color Graphics and Printer Adapter Model MCGP-5
Compatible with Hercules, MDA and CGA
Color Emulation on MDA Monitor
Support Composite Standard with adapter
Auto Screen Sleep after 8 minutes (can be disabled)
LPT Port (can be disabled)

$15 plus $3 first class shipping in US. International please contact me for a quote. PM if you are interested.

cga1.jpgcga2.jpg



Gary Fletcher
 

Junk Junkie

Member
Joined
Jan 7, 2012
Messages
30
Location
East Tennessee
I still have two of these cards left if anyone is interested. If anyone is interested in a trade I need an 8 bit mfm controller for an XT.



Gary Fletcher
 

Chuck(G)

25k Member
Joined
Jan 11, 2007
Messages
39,125
Location
Pacific Northwest, USA
Weird Chinese manufacturing--oodles of discrete resistors instead of resistor packs! Manual assembly, perhaps?

Any idea of what the empty sockets are for? Can they be used for anything?
 

GottaLottaStuff

Veteran Member
Joined
Apr 6, 2011
Messages
637
Location
Central Virginia, USA
"Any idea of what the empty sockets are for?"

I had something similar years ago. If I remember correctly, some versions had serial ports as well, on a separate slot cover.
 

Chuck(G)

25k Member
Joined
Jan 11, 2007
Messages
39,125
Location
Pacific Northwest, USA
Looking carefully at the PCB traces, I'm going to guess that the pair of 18-pin DIPs are just alternates to the SMT RAM at the top (something like 4416 DRAMs?).

I suspect that the large 28 pin DIP and the 20 pin dip next to it are for alternate fonts.
 
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