AL-800H Instruction Manual
ii
Unpacking Instructions
Remove the 3CX800A7 tubes from their shipping cartons. Carefully unwrap the tubes and inspect them for
visible damage. look for dented anode coolers and broken or bent pins. Roll the tubes over slowly and
listen 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 Philips screwdriver. Save the screws to resecure the
cover. carefully lift the rear of the cover while sliding the cover back.
TheAL-800H is shipped with the
rubber chimneys, fusses, and fuse caps packed inside the amplifier.
Additional screws will be included
in the fuse pack if they are required.
WARNING: 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 the tubes
and the sockets. Two of the pins are separated by a large space. Carefully observe the pin alignment to be
sure the tube pins are centered on the socket's metal contacts. Firmly press each tube into a socket.
Do
NOT twist or force the tubes into the sockets.
Install the rubber chimneys over the tubes. The seam of the chimneys must face the fiber panel. The
bottom of the chimney has notches that must fit over the grid connectors near the base of the tube.
Remove the tape holding the anode connectors to the center panel. Install the anode spring clip connectors
on the tube's anode caps by pushing straight down on the clips.
The top cover should now be installed with the side ventilation holes positioned on the lift (front view).
The vent 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 screw's first. Install all the screws loosely until every screw is in place.
Tighten the screws after they have all been installed.
Install the fuses and fuse caps on the back of the amplifier. This amplifier uses two 15A fuses for standard
240 Vac operation. If you wish to operate the amplifier on a line voltage other than 240 Vac, the jumpers
on the power transformer primary windings must be changed. If the line voltage wiring is changed, the
correct fuses must be installed. See the TRANSFORMER CONNECTIONS section on page 13 for more
information.
CAUTION: Always use fast-blow fuses rated at 250 volts or higher. NEVER use standard
automotive fuses or slow-blow fuses.
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.
