RedPlate RedStar Operations Guide
3
Bias adjustment and bias test point
– Allows external access for bias adjustment (see bias
procedure in the
Maintenance
section).
LINE OUT
– A line level signal jack derived from the speaker output which contains the whole
tone of the amplifier.
Speaker Jacks
– The MAIN and EXT jacks are wired in parallel. The MAIN jack must be used
first because it has a protection device. ALWAYS HAVE A SPEAKER CONNECTED TO AVOID
PERMANENT AMPLIFIER AND OUTPUT TUBE DAMAGE.
Impedance
Selector Ω
- Set this to the total impedance of all attached speakers.
SEND and RETURN Jacks
– The send jack connects to the input of an external effects device
and the return jack connects to the output of an external effects device. The return jack interrupts
the signal path so the external effects unit must mix the wet and dry signals.
POWER ON/OFF PROCEDURE
1. Check the Standby switch to make sure it is toggled downward for Standby operation.
2. Toggle the main power switch to the up position (this switch is located at the top of the IEC
input module). The front panel pilot light should be lit.
3. Wait one minute and then toggle the Standby switch upwards to the Operate position.
4. POWER OFF
– Toggle the main power switch downward, there is no need to go into
standby first although it will not hurt anything.
MAINTENANCE SECTION
Your RedStar amp has been designed for years of trouble free operation. The vacuum tubes
will need to be replaced over time. We recommend new output tubes every 160 - 240 hours and
new preamp tubes every 320 - 480 hours.
The front and rear panels have a protective finish that can be easily scratched with abrasives
so always use a damp soft cloth to clean them (never use paper towels). The cabinetry can be
cleaned with our super secret tolex cleaner (on a paper towel - 2 squirts of WD-40 and 4 squirts
window cleaner).
TUBE LAYOUT
All tube brands are acceptable, a long plate is preferred in the V6 (Phase Inverter) position.