Audio Research Reference 250 SE, Руководство пользователя

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Before operating the Reference 250 SE
Your Reference 250 SE amplifier is shipped
with the vacuum tubes packed in foam
blocks. These must be unpacked and
installed before you attempt to operate
the amplifier. Included are a matched
sextet of KT150 output tubes, a matched
pair of KT150 driver tubes, 2 6H30 dual
triode used in the input and regulator
stages, and a 6550WE for the power
supply regulator. Proceed according
to the following instructions.
Installation
Remove all screws fastening the top cover.
Carefully remove each vacuum tube
from its protective foam and match its
location ‘V’ number (written on the base
of the tube) to the ‘V’ number printed
next to each socket. Firmly seat each
tube in its matching socket, taking care
to ‘key’ the tube pins to the socket holes.
Retain the foam blocks with other packing
materials for possible future use.
Refasten top cover on amplifier.
V1 V2
V3 V4
V11
FRONT
REAR
TUBE LOCATIONS
TOP VIEW
V5 V6
V7 V8
V10
V9
output
tubes
driver
tubes
power
supply
tubes