Ameritron AL-572 Instruction Manual
2
UNPACKING INSTRUCTIONS
Remove the AL-572B tubes from their shipping cartons. Carefully inspect each tube for visible
damage. Look for bent or broken pins. Roll each tube over slowly while listening and watching
for loose internal materials. Contact either your Ameritron dealer or Ameritron immediately if
any damage exists.
Carefully lift the amplifier from the shipping carton, and place it on a firm, level surface. Inspect
the amplifier for shipping damage. Contact either your Ameritron dealer or Ameritron
immediately if any damage exists. Remove the cover screws with a #2 Phillips screwdriver.
Save the screws to re-secure the cover. Carefully lift the rear of the cover while sliding the cover
back. The AL-572 is shipped with the fuses and fuse caps packed inside the amplifier.
Additional screws will be included in the fuse pack when required.
DANGER: Never remove the cover while this amplifier is connected
to the power mains! Contact with the voltages in this
amplifier can be fatal.
The tubes must be installed in their sockets prior to operation. Observe the pin configuration on
each tube and socket. Two of the of the four base pins are slightly larger in diameter. Carefully
observe the pin alignment to be sure correct tube pins are centered on the socket's holes. Firmly
press the tubes into the socket. Do NOT twist or force the tubes into their socket.
Install the anode connector on the tube's anode terminal.
Install the fuses and fuse caps on the back of the amplifier. This amplifier uses two 20A fuses for
standard 120 Vac operation (models B and BY) or two 12A fuses for 240 V operation (model BX
only). If you wish to operate the amplifier on a line voltage other than 120 volts, the jumpers on
the power transformer primary windings must be changed. If the primary wiring is changed, the
correct fuses must be installed. See the "T
RANSFORMER
C
ONNECTIONS
" section on page 15 for
more information.
CAUTION: Always use fast-blow fuses rated at 250 volts or
higher. NEVER use standard automotive glass fuses or
slow-blow fuses.
The top cover should now be installed with the ventilation holes on side of the cover positioned
near the electrolytics. The ventilation holes on the top of the cover should be on the right side of
the amplifier (front view). Secure the cover by installing the corner screws first. Install all the
screws loosely until every screw is in place.
Tighten the screws
after
they have all been
installed.
Note: Ameritron will NOT be responsible for shipping damage due to improper packing.
The packing materials used to ship this amplifier are specially designed to prevent damage. All
packing materials should be retained for future shipping. Replacement packing materials may be
purchased from Ameritron if original packing materials are unavailable.
(15 Seiten)
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