Hughes & Kettner TUBE CLOCK Mode D'emploi page 5

TUBE CLOCK-MANUAL 1.0
Operation
Before using for the first time
• The Tube Clock has a built-in wide-range power unit and
can be used all over the world. From the mains cables
supplied, please select the suitable cable for the mains
socket usual in your country.
• Before connecting the Tube Clock to the electricity mains,
make sure that the two toggle switches POWER and
STANDBY are pulled down (off), that the two knobs TUBES
and PANEL are in the middle position, and that the MODE
knob is set at either 12 H or 24 H.
• Ensure that air can flow freely through the cooling slits of
the device.
• Make sure that the device is placed on a stable, even
surface in a place that rules out external mechanical and
thermal influences that could jeopardise the reliable
operation of the device or the safety of people.
• The manufacturer accepts no liability for damage to the
device occurring due to incorrect operation.
N.B.: The internal clock of the Tube Clock is supplied with
electricity even when switched off. The Tube Clock cannot be
separated from the electricity mains by using the POWER
switch. To do this, it is always necessary to remove the mains
cable either from the device or from the mains socket! The
internal clock is equipped with a buffer for the eventuality of
a power failure, transportation, or other reasons that make it
necessary to separate the Tube Clock from the electricity
mains for a short period. If the clock is separated from the
mains for a longer period, it must be reset.
POWER Toggle Switch
The clock is switched on using the POWER switch. If you flip
the switch up, the red power LED and the blue panel lighting
lights up.
STANDBY Toggle Switch
As usual with the valve amps, the valves are activated
separately from the POWER switch via the switch STANDBY.
The valves only glow when POWER and STANDBY are
switched on (switches flipped up).
PANEL Knob
With this knob, you can adjust the brightness of the blue
panel-illumination and of the red Power-LED as you wish
from very dark in the position DARK to bright in the position
BRITE.
TUBES Knob
The brightness of the valves is adjusted by the TUBES knob.
PULL TO SET Knob
If you pull out this so-called pull-push poti, the clock stops,
and the seconds display flashes and shows zero. You can now
set the hours using the HOURS knob and the minutes using
the MINUTES knob. Pressing the potis starts the clock running
from the set time. The turning of this poti has no function.
HOURS and MINUTES Knob
After pulling out the PULL TO SET poti, you can set the hours
and minutes using these knobs. The seconds are not set in
this way, but instead begin at zero as soon as the Tube Clock
is started by pressing in the PULL TO SET poti.
MODE
With the MODE knob, you can chose from between a 24-
hour and a 12-hour display. The display-mode can be
switched during running operation without activating the
PULL TO SET poti. "PM" is displayed in the 12-hour-mode by
an illuminated point at the bottom right in the second valve
from the left.
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