2 AMP SLO-BLO FUSE
Standard fuse value must not be exceeded. If a fuse blows, replace and turn amp back on. Check
the bias on each output tube. If the bias on one tube has changed by a large margin or there is no
bias, then that tube is probably bad and should be replaced. If the output tubes appear to be okay,
then the cause of the fuse blowing may be due to poor system grounding, unstable preamp,
shorted speaker, etc. Interchanging the amps between channels will help localize the problem to
either the system or the amplifier.
TUBES
The 12AX7 and 12BH7 input tubes are chosen for their specific performance characteristics and
should last several years or many thousands of hours. We can only guarantee the performance of
this unit when used with input tubes supplied by Quicksilver.
Each Triode Amplifier is shipped with 2 matched KT88 output tubes. Best performance will result
when both tubes are A.C. and D.C. matched. The number on each KT88 box is the matching
number for that tube.
Output tubes
will
need to be replaced periodically. When a degradation in sound occurs or the
fuse blows repeatedly, it is time for new output tubes. We recommend purchasing tubes from
Quicksilver Audio or your dealer, and we recommend keeping an extra output tube on hand in
the event that one fails.
POWER SWITCH
shown in
"on" position
BLUE
INDICATOR
LIGHT
SPEAKER
TERMINALS
8 C 4
INPUT
CONNECTOR
100K
2 AMP
FUSE
IEC
OUTLET
12BH7
OUTPUT TUBES: MATCHED PAIRS OF EL34, 6L6, KT88, OR 6550
Bias Meter
Bias Adjustment
Push to read meter
