Hi,
I thought this was one to watch out for in second-hand gear, from the Andrews Comms website
"
EQ5C dual axis motor drive kit on special...only $199.00 AUD!
Includes an 8 x "D" cell battery tray (total voltage = 12Vdc ).
This motor drive also fits Saxon EQ5(C) type equatorial mounts!
Note! External DC power supply operation is
not recommended for this motor drive controller or
any similar motor drive controllers from China or Taiwan - even if the power supply is well-regulated! Use batteries only!
Such operation may void warranty conditions as virtually all of these controllers have no DC voltage protection or regulation fitted. "
Batteries only on an EQ5 drive
Cheers