The following computers can be connected to the usual Amstrad CTM644 (or the unusual CTM640/CM14) monitors:
- Tatung Einstein (through resistors to lower the R-G-B signals' voltage; pins must be reasigned; and horizontal focus position must be realigned)
- BBC Model B (may need resistors? I think the signal is too much strong, but it seems to work ok...)
- BBC Master (may need resistors? I think the signal is too much strong, but it seems to work ok...
- Spectrum +3 (through resistors to lower the R-G-B signals' voltage; pins must be reassigned)
- Spectrum +2A (through resistors to lower the R-G-B signals' voltage; pins must be reassigned)
- Sinclair QL (through resistors to lower the R-G-B signals' voltage; pins must be reassigned)
- RFT Kc-compact (pins must be reassigned)
- Patisonic Aleste 520EX (pins must be reassigned)
- Camputers Lynx 48k (pins must be reassigned, and horizontal focus position must be realigned)
- Oric 48k/Atmos (pins must be reassigned)
- Enterprise 64/128 (pins must be reassigned, and R-G-B brightness must be re-set for each colour)
- Exeltel Exelvision (pins must be reassigned)
- Amiga range computers
- Atari ST computer range (with adaptor cable)
As a general rule, you will be able to connect computers with RGB video output *and composite sync*. Therefore, it is possible that the following computers can be connected to an Amstrad monitor:
- Thomson MO5 (probably)
- Didaktik M48
- Radofin Aquarius with SCART connector (french Aquarius)
- MGT Sam Coupé (probably)
- MSX Computers (probably)
- French Sega SC-3000x computers
- Acorn Electron
- French Mattel Intellivision with SCART output
- French CBS Colecovision with SCART output
- French Atari 7800 with SCART output
A classical way to get other computers running on a CPC monitor is to use the scart/Peritel port from a MP-3 TV tuner.
Amstrad's CPC monitors were basically cheap TV screens lacking the tuner... So any machine able to run on a TV could be used on those.