PRESONUS TubePre V2 Owner's Manual page 19

Owner's Manual
4.1.1 How to Replace the Tube
Vacuum Tube Care and Maintenance
1. Unplug the unit. Proceed with caution,
as the tube could be hot.
2. There is one screw on the top and one screw
on the bottom of the chassis that connect
the left side panel (as viewed from the front
of the unit). Remove these two screws.
3. Remove the left side panel.
4. Grip the tube and pull outward to
remove it from the socket.
5. Align the pins of the new tube and place it in
the socket. The pins align with the large pin
spacing located at the bottom. Make sure that
the tube is completely seated in the receptacle.
6. Replace the left side panel and screws.
Resources 4
4.1
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