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INPUT TUBE INFORMATION
The SE84TS is designed to use your choice of
three different input (or signal) tubes.
12AX7 - Most Gain
12AT7 - Medium Gain
12AU7 - Low Gain
Each of these tubes will lend a different signa-
ture to the overall sound of the amplifier. If
you are using a standard 2 volt source like a CD
player with NO preamp, you will probably find
the 12AU7 to have not enough gain. With a
preamp, it could become your favorite tube.
RECTIFIER TUBE INFORMATION
The SE84TS is designed around the 5Y3GT rec-
tifier tube. It is however, compatible with the
following alternatives - each having a subtle ef-
fect on the overall sound characteristics of the
amp.
◊
5U4
◊
5AR4
◊
GZ34
◊
274B
The different ratings and efficiencies of these
rectifiers will effect the operating voltage points
throughout the amplifier which is why they can
have an effect on the sound. You will find that
even different brands of the same tube will
sound different. This is true with any vacuum
tube.
Lucide mode is active
when the switch is point-
ing to the right.
Standard mode is the
switch pointing to the left.
WHERE EVERYTHING GOES
Below are the tube locations, input jack con-
figuration and power switch location.
The input switch, one for each channel,
changes between direct and variable inputs.
It always points to the active jack. For ex-
ample on the left side of the amp, moving
the input switch to the right would select the
variable input for that channel. Variable in-
put means the signal goes through the vol-
ume control located at the front of the
SE84TS.
LEFT
INPUT
DIRECT
LEFT
INPUT
LUCID
VARIABLE
MODE
SWITCH
RECTIFIER
OUTPUT TUBES
INPUT TUBE
POWER SWITCH
RIGHT
INPUT
RIGHT
DIRECT
INPUT
VARIABLE
MASTER
VOLUME
CONTROL
6
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