The system is enclosed by a plastic cover. The cover does not come with the
AS1 system, but is a good idea to prevent drafts from creating noise. The cover
can be purchased for $40 from:
E & A International
4801 Ellison Street #G NE
Albuquerque, NM 87109
Tel: 505-345-4101
Fax: 505-345-4101
Contact: Istvan Matyasi
Note Swiss army knife in foreground for scale.
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 All materials are aluminum except for the steel spring, steel damping bolt and
washer, magnet, and steel front bolt and washer (for extra mass). There
are three brass leveling screws threaded through the aluminum base. The
left end of the horizontal boom is sharpened and rests in a groove on the
vertical mast.
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