Q1: Does the Meade #607 power cord work with a 8\ Lx200R?"
A: Yes, the Meade #607 DC Power Cord will work with the LX200R.
Q2: Hi I need to know if this power cord is compatible with the MEADE DS-2114 telescope, thank you
A: i am sorry but no. meade does not have the DS series scopes set up to recieve power from a DC adapter. the only adapter that will work with the DS series scopes is the #546 AC Adapter.
Q3: Hi, I have a Celestron 12 vdc power supply for my other scope which has the inner conductor as +12 volt and the outer conductor is -12 volt. Is this the same polarity as needed for the LX90 8\ SCT?"
A: it is not quite the same for the LX90 Meade only has a DC adapter #607 Power Cord available otherwise it uses C cell batteries.
Q4: i have a etx-125. will the 607 dc pwr cord work with a 12v dc automotive jumpstarter - dc power source?
A: The Meade #607 Power Cord will work with any 12-Volt DC source that has a cigarette lighter socket.
Q5: Is this cord Compatible with the Meade ETX-70?
A: i am sorry but no this will not work for the ETX-70 there actually is not a DC adapter available for it.