Toshiba Tecra M3 - Manual (Page 58)

2-18 User’s Manual
The Grand Tour
Use only the AC adaptor that came with the computer or an equivalent
optional adaptor. Use of any other adaptors could damage your computer.
TOSHIBA assumes no liability for any damage in such case.
Use only the AC adaptor supplied as an accessory. Other AC adaptors
have different voltage and terminal polarities and use of them may produce
heat and smoke or even result in fire or rupture.