Clarinet Linestage Kit Manual
12
4 Testing & Installation
Testing
Double-check all of your work before applying power. Wear safety glasses, turn on the
power and check for smoke. The LED should be red, and then switch to green after
about 20 seconds. This indicates both heater and high voltage circuits are working.
Measure power supply and plate voltages using a DVM. Voltages are marked on
circuit board and schematic. Due to tube variations, these voltages will range as
much as +/-10V.
Connect a 1kHz sinewave signal and observe output on oscilloscope. Insure all
controls are functional.
Turn off, remove power cord and install bottom cover.
Square wave performance at 10kHz and 1kHz residual distortion.
Connections
The Clarinet connects to your audio system just like any other linestage. Top RCA jacks
are left channel, bottom are right. Please note, the Clarinet inverts signal polarity. You
can compensate for this by swapping speaker terminals.
Listen. Roll tubes. Enjoy.
