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EXHIBIT A
AGREEMENT
JOINT FILING OF SCHEDULE 13G
The undersigned hereby agree to jointly prepare and file with regulatory
authorities a Schedule 13G and any future amendments thereto reporting each of
the undersigned's ownership of securities of Advanced Photonix, Inc. and hereby
affirm that such Schedule 13G is being filed on behalf of each of the
undersigned.
Date: February 2, 1998
By: /s/ J. Xxxxxx Xxxxx
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J. Xxxxxx Xxxxx
Date: February 2, 1998
X.X. Xxxxx Investment Banking Corp.
By: /s/ Xxxxx Xxxxxxxx
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Xxxxx Xxxxxxxx
Treasurer
