Rogue Audio M-120 - Manual (Page 6)

4) Allign Tubes - Using a glove or a clean dry cloth, straighten any
tubes that may have tilted during shipment as shown in figure 3.
Ensure that tubes are fully seated in their ceramic sockets.
MAINTENANCE
The Rogue M-120 has been designed to provide many years of enjoyable
and reliable service. The greatest care has been taken to select vacuum tubes
that provide superior sound and ensure long life. However, at some point in
time, the tubes will wear out. The factory installed tubes should last
thousands of hours. Should it become necessary to replace a tube, follow
the instructions listed below.
Replace Tubes by :
1) Turn off power at switch.
2) Wait one hour for dangerous voltages to dissipate.
3) Unplug power cord from wall socket.
4) Remove the tube cage.
5) Using a glove or clean dry cloth, carefully remove the tubes from
their sockets - DO NOT TOUCH ANY OTHER ELECTRICAL
COMPONENTS.
6) Obtain and insert a new set of tubes. It is recommended that a
new set of tubes be obtained from Rogue. If tubes are obtained
from another source, follow the diagram in figure 3 for tube type.
7) Insert new tubes in sockets using a glove or cloth. See figure 3 for
locations.
No other items in the unit are designed to be user serviceable
.
WARNING - This amplifier uses voltages that could cause
injury or death. Never open the amplifier while it is
plugged in, and always wait at least one hour after turning
the unit off to unplug and open the unit. Lethal voltages
can remain in the electronics after the unit is unplugged.
Figure 3
Rogue M-120 Owners Manual 4 Rogue M-120 Owners Manual 9
Power Tubes
(KT88 or 6550)
Power Tubes
(KT88 or 6550)
12AU7 12AX7 12AU7