audible science
audible science
COBRA
DESIGN FEATURES
CONT.
THE VERTICAL BEARING MOTION cont.
Secondary Pivot – Azimuth Stabilized with a Hardened Steel
Inverted pivot resting on a man made Sapphire “Swash
Plate”. This secondary pivot plays a crucial role in the
stability of the arm allowing for optimum placement of the
counterweight thus removing inertial problems associated
with alternative stabiliser designs.
THE HORIZONTAL BEARING MOTION
Two precision matched ABEC 7 vertically opposed bearings
with internal damping. Minimises precessional effects in
rotational plane to close to zero.
THE AZIMUTH ADJUSTMENT
Azimuth is adjusted by means of fine threaded Sapphire
Bearing swash plate. This is adjustable with micrometer
accuracy indicated on a clock face engraved on the azimuth
adjuster. Please ensure stylus is at rest when you adjust
azimuth.
Do not attempt to adjust during playback.
It is recommended azimuth is adjusted with a test record
and purpose designed scope or meter.
PARTS OF
YOUR COBRA
page 14
