Rogue Audio Vacuum Tube Preamplifier - Manual (Page 6)

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Cartridge Loading can be changed using switches SW1, SW2, SW3, and SW4, as
shown in Figure 3. The values are printed on the printed circuit board are listed in
the table below
Switch Parameter A B C D
SW1,SW2 Capacitance (UP) 150 pF (Down) 0 pF NA NA
SW3,SW4 Resistance 100 ohm 300 ohm 1000 ohm 47K ohm
The gain of the phono section can be changed using SW5 and SW6 as shown in
Figure 3. The switch settings are printed on the printed circuit board. The two
setting are mm (XXX dB) and mc (YYY).
Preamplifier Location:
The Perseus is an open tube design and depends on natural convection flow
patterns for proper cooling. To ensure proper cooling, the unit should be located
in a position so that the airflow is not impeded. In addition, the unit should have a
minimum of 2 inches of free space above it.
OPERATION OF THE PREAMPLIFIER
Powering up the System:
After all proper connections have been made, you are now ready to turn the
Perseus preamplifier on. The power on/off switch is on the front of the amp.
After approximately ten seconds, the high voltage supply will turn on. After and
additional ten seconds, the outputs will disconnect from ground and the preamp is
ready. After turning on the preamplifier, turn on the power amplifier and source
material and you are ready for listening.
NOTE - This unit will not play for approximately 20 seconds after
power on while the tubes warm up.