CTR-73  (140-1053/A)           Power Supply             Faxback Doc. # 7729

You can operate the CTR-73 using any of these power sources:

    Household AC
    Four Alkaline C Batteries
    12V automotive battery (with an optional DC adapter)

INSTALLING BATTERIES

1.  Press down on the battery compartment cover, and slide it in the
    direction of the arrow.

2.  Insert four C batteries, Radio Shack Cat. No. 23-551 or the
    equivalent.  Position the batteries as illustrated.

3.  Replace the compartment cover.

CHECKING THE BATTERY CONDITION

1.  Press the PLAY, REWIND, or FAST-F key.

2.  If the RECORD/BATTERY indicator lights continuously, replace all four
    batteries at the same time.

USING HOUSEHOLD AC

Connect the small plug of the supplied AC cord to the AC POWER jack on the
unit.  Insert the other end of the cord into a standard household AC
outlet.

NOTE:  When you connect the AC cord, the CTR-73 automatically disconnects
       the internal batteries.

WARNING:  Never leave the power cord connected to an AC outlet when the
          other end is removed from the AC jack on the unit.  This
          presents a serious shock hazard.

USING AN AUTOMOTIVE BATTERY

You can operate the CTR-73 in a car that has a 12 Volt DC, negative-ground
electrical system using a DC adapter (Cat. No. 14-844D)

1.  Set the switch on the adapter to 6V.

2.  Insert the adapter plug into the DC 6V jack on the recorder.  Plug the
    other end of the adapter into the cigarette lighter socket of the
    vehicle.

When you connect the vehicle adapter, the CTR-73 automatically disconnects
the internal batteries.

CAUTION:  Do not let the adapter's plug contact any metal parts of the
          vehicle while the adapter is plugged into the cigarette lighter
          socket.  A harmful short can occur that can damage the adapter
          or the vehicle's electrical system.


(ALL-9/27/94)