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5.2.3 Life Span
Power tubes last 1 to 3 years, depending on care, volume and frequency of
use ofthe amplifier. If you use your amp only once a month, then the tubes
will lastmuch longer. Really. We have heard tubes that are over 10 years old,
but it wasnot a good thing. Tubes age very slowly; slow enough for the artist
to get used tothe changing tone. To keep things fresh, and to keep your tube
dealer in business,we recommend re-tubing, cleaning and biasing once a year
if the amp is usedfrequently.
Chapter Six: Layout of Controls
6.1 Manual Channel Selection
The 2 channels of the Einstein can be selected manually by activating the
selectswitch for either channel. Alternatively, a foot switch can be connected
toremotely control the channel selection.
6.2 Master 2 On/Off
Master 2 can be used for all channels, and can also be remotely controlled via
theincluded foot switch. This allows instant volume boost, or cut, without
fiddlingwith the amp. Once adjusted to suit your needs for the gig, it's a thing
of purebeauty. You can select the Master 2 function via the Diezel 2-button
foot switch.Actually, you can also use a readily available single button foot
switch with a 1/4"connector.
6.3 Channels
• Channel One
Control perimeters include Gain, Volume, Treble, Mid, and Bass. A 3-
positiontoggle switch selects preset gain modes.
• Channel Two
Control perimeters include Gain, Volume, Treble, Mid, and Bass. This
channelcan be selected via the toggle switch, or via the Diezel 2-button foot
switch.
6.4 Effects Mix control Rear panelThis control determines the amount of effect signal
in the parallel loop
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