6
Before operating the Reference 6
Your Reference 6 preamplier is shipped
with the vacuum tubes packed in a
separate foam-lined carton. These must
be unpacked and installed before you
attempt to operate the preamplier.
Included are six 6H30 tubes for the
analog stage, and a 6H30 and 6550WE
used in the power supply. 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 tube carton with other packing
materials for possible future use.
Refasten top cover on the preamplier.
V6 V4 V2
V5 V3 V1
V7
V8
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