Radio Shack 273-1687 Owner's Manual page 7

tip on the device's power jack is
negative, align (negative) to
–
TIP
If you use the special Dell plug,
align on the Dell plug with
TIP
marked on the output socket. ±
4. Insert the Adaptaplug into the
device to be powered, then insert
.
TIP
TIP –
±
"016'"
TIP
If the polarity symbol is
not displayed on the
device to be powered, it
might appear on an ID
plate on the computer
power supply or the
original power adapter
(see "Compatible
Computers" on
Page 11).
±
"
7