User Manual

FRONT PANEL 
Controls 
[1] Channel A attenuator
Attenuates the voltage level present at IN A. The behaviour of the knob depends on the position
of the corresponding polarity switch. The attenuation amount is linear.
[2] Channel A polarity switch
This is a 2-position switch that sets the polarity of the OUT A signal.
UNI: With the switch in the left UNI position, the channel functions as a standard attenuator. The
full value of the channel’s input voltage is passed through to the output when the attenuator
knob is fully clockwise . None of the input voltage passes through to the output when the
attenuator knob is fully counterclockwise ; and half the voltage passes through to the output
when the knob is at the 12:00 (straight up) position.
-/+: With the switch in the right -/+ position, the channel acts as a bipolar attenuverter. The full
value of the channel’s input voltage is passed through to the output when the attenuator knob is
fully clockwise . The inverse of the input voltage is sent to the output when the knob is fully
counterclockwise ; and none of the input voltage passes through to the output when the knob is
at the 12:00 (straight up) position.
[3] Channel B attenuator
Behaves the same as the Channel A attenuator but for channel B.
[4] Channel B polarity switch
Behaves the same as the Channel A polarity switch but for channel B.
Quadratt 1U Manual 8