Before Operating The Reference Phono 3 - Audio Research Reference Phono 3 Manual

Before operating the Reference Phono 3

Your Reference Phono 3 preamplifier 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 phono
preamplifier. 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
V6 V4 V2
V5 V3 V1
V8
V7
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 the top cover on the
phono preamplifier.
6