I kept the RGB cable from my M1438S when I was forced to ditch it.*
I intended building my own Amiga<->VGA adaptor (even bought the Sub D15) but never got round to it - to my own shame I got a ready made one from AmigaKit** - what a lazy get !
*it was the right thing to do. it was starting to get a bit 'dodgy'. but still :-(
**to amigakits credit, its really good for the faster linerates AGA can do! I just wish I had got the dosh for a scandoubler instead...