6
Before operating the Reference 150 SE
Your Reference 150 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 two matched quads of KT150
output tubes, and four 6H30 dual triodes
used in the input stage. Proceed according
to the following instructions.
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.
V8
V6
V12
V10
V4
V2
V7
V5
V11
V9
V3
V1
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Installation
