These were the colour monitors sold together with the classic CPC-computers.
The only difference between the CTM640 and CTM644 models is the additional 12V power supply for the CPC664/CPC6128's disk drive in the later model.
Technical Specs.
| Tube diameter: | 36cm/14" |
| Visible diameter: | 34cm/13.5" |
| Input voltage: | 220V~/50Hz |
Weblinks
Manual
The procedure of setting up the CPC with the CTM640/CTM644 monitors is described in the CPC's user manual.