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Preparation for Use
Sonata
Place your
amplifier on a flat surface.
Sonata
Your
amplifier is delivered with two matched pairs of EL34 output tubes. It is
important to follow markings on the tube boxes and insert them into appropriate
Sonata
sockets. Your
amplifier utilizes auto-biasing circuitry, so you never need to be
concerned with the inconveniences of biasing the tubes.
Before inserting the tubes, inspect them for cracks and physical damage. Make sure that
the pins are straight. If you need to straighten the pins, be very careful as that may cause
the glass envelope to break, causing the tube to lose the vacuum and fail as soon as the
amplifier is powered on. Carefully align the pins with the socket and gently insert the
tube fully into the socket. Never force a tube into a socket.
Controls and their Functions
Front Panel
Selector Switch – The three-position selector switch is used to select the active audio
source.
Volume control – This control is used to adjust the output sound level. Turning the
control knob clockwise increases the sound level and turning it counterclockwise
decreases the sound level.
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