8 Jun
2023
8 Jun
'23
10:12 a.m.
On Wed, Jun 7, 2023 at 2:26 PM Jonathan Katz via cctalk <
cctalk(a)classiccmp.org> wrote:
I have an IBM 6152 aka IBM RT system I rescued. (It
may be a 6151?)
I'm 90% sure it has colour graphics. The system does seem to POST
correctly (according to the LED on the front) but the CRT is dead. I'm
wondering if anyone has built an adapter to hook this to a VGA
monitor.
Do you have the Megapel adapter in your 6151 with the 3W3 connector? I
have one in my 6150 and I was able to connect it to a VGA monitor (NEC
Multisync) and I think I only created an adapter to go from 3W3 to Red,
Green and Blue RCA plugs (component) that then went into a simple RGB
component to VGA wired adapter (about 6 inches long) I already had. Part
of the magic might be in that multisync monitor though.
Here it is running AIX:
https://vintagecomputer.ca/wp-content/uploads/2023/06/IBM_PC_RT_running_AIX…
I got the 3W3 connector and parts from Digikey. Here's what that looks
like:
https://vintagecomputer.ca/wp-content/uploads/2023/06/IBM_RT_3W3_RGB-rotate…
Please forgive the crude construction. I didn't think it would work but it
did.
Here is the RGB component to VGA adapter I also used:
https://vintagecomputer.ca/wp-content/uploads/2023/06/RGB2VGAadapter.jpg
Hope this helps.
Santo
