Tubes Installation - CANARY AUDIO CA-339 Owner's Manual

TUBES INSTALLATION

Be sure the amplifier is OFF before installing any tubes.
Avoid touching the tubes with bare hands to prevent skin oils from depositing on
the glass surface of the tubes.
Insert each tube in the corresponding socket. Refer to Diagram 1.1 for further
clarification.
The 6SN7 tubes are inserted into sockets designated as V5 and V6. Align the
center key of the tube base with the slot in the center of the socket. Carefully push
down the tube into the socket with a gentle rocking motion until it is firmly seated.
The 5U4GB tubes are inserted into sockets designated as V7 and V8. Align the
center key of the tube base with the slot in the center of the socket. Carefully push
down the tube into the socket with a gentle rocking motion until it is firmly seated.
The 300B tubes are inserted into sockets designated as V1 to V4. Pay extra
attention to the tube pins and socket holes for these tubes. Identify the two
larger pins and align the pins with the two larger holes on the socket. Carefully
push down the tube into the socket with a gentle rocking motion until it is
firmly seated.
V2 V6
V1 V5
V7
Diagram 1.1 Overview of CA-339
V4
V3
V8