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2025-12-29: I have restored the wiki to a backup from the end of November. Starting in September 2025, accesses went form the 800MB-1.2GB range per month to 26GB in September, 42GB in October, and 70GB in November with most accesses originating from China. As soon as I realized what was causing all the access problems in November, I shut it down (it had reached 36GB by then) behind a password/login screen. The database had gotten corrupted, and I tried a restore from just before the spike in access but that didn't work. Thus, end of November. I still have the other daily backups so if there were any important additions in December, let me know and maybe they can be recovered. - Allen H.
CoCo 3 RGB to CGA/EGA Adapter
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Home / Hardware - CoCo 3 RGB to CGA/EGA Adapter
How to make a CoCo3 to CGA/EGA adapter
List of materials:
1) an old PC serial cable (the one that goes from
the motherboard to the back of the case DB9M)
2) a DB9F socket to replace the DB9M (I used an
EGA card since my CoCo is repacked)
Instructions:
Cut the DB9M connector off of the serial cable and
solder the wires to the DB9F using the following
pinout. Note that both pins 1 and 2 of the CoCo
end go to pin 1 of the DB9F. CoCo Pin 7 should only
be connected to a monitors audio input (if present)
or you may run it to an external amplifier.
__________
|[][][][][]| <--Looking at the bottom of the CoCo3
|[][] [][]|
TTTTTTTTTT
|||||||||�<--red wire=pin 1 (both ends)
|||||||||�
x|7|x|4|1�
.6 x 5 3 1 <--connect toDB9 pin# (x=no connection)
___________
( 5 4 3 2 1 )
\ 6 7 8 9 / <--DB9F (facing the socket side)
���������