Diagrams - Cary Audio Design CAD 211 AE Owner's Manual

Diagrams_________________________________________________

Insert the ¼" bias meter plug into the bias jack on the back of the amplifier chassis. Connect the bias cable red
alligator clip to the positive (+) connection on your meter. Connect the bias cable black alligator clip to the
negative (-) connection on your meter. Check the 845 tube bias current reading and adjust for a 100 mA reading
on the Volt Ohm Meter (VOM) or DC current meter if the reading is different than 100 mA DC current. Check
and readjust to 100 mA again after the CAD 211 amplifier is warmed up for 10 minutes. Remove the ¼" plug from
the bias jack and enjoy the music!
Note: Bias is factory preset to 100 mA. Bias should be reset when installing a new
replacement 845 tube.
The LARGE pair of 300B tube pins should be installed toward the front of the CAD 211 AE amplifier tube socket.
Look carefully at the tube pins to be sure that you insert them correctly. It is possible to force the tube pins into
the socket the wrong way if you are not careful! If you install the tube wrong you will probably damage the
amplifier and the tube. This damage will not be covered by the manufacturers warranty for a new amplifier. If you
have any doubts about this, have the 300B tube installed by your dealer.
300B Tube Pin Layout
The LARGE pair of 300B tube pins should be installed toward the front of the CAD 211 AE amplifier 300B tube
sockets. LOOK CAREFULLY at the tube pins to be sure that you insert them correctly. It is possible to force the
Set the 845 tube
bias to 100 mA DC
Current
¼" bias plug
10