Advanced Power Technology Inc Watch

from SC 13G/A 1 page Exhibit 1 Joint Filing Agreement in Accordance With Rule 13d-1 (F) Under the Securities Exchange Act of 1934, as Amended, the Undersigned Hereby Agree to the Joint Filing With All Other Reporting Entities (As Such Term Is Defined in the Schedule 13g) on Behalf of Each of Them of a Statement on Schedule 13g (Including Amendments Thereto) With Respect to the Common Stock, $.01 Par Value Per Share, of Advanced Power Technology Inc., Andthat This Agreement Be Included as an Exhibit to Such Joint Filing. This Agreement May Be Executed in Any Number of Counterparts All of Which Taken Together Shall Constitute One and the Same Instrument. in Witness Whereof, the Undersigned Hereby Execute This Agreement This 12th Day of August, 2002. Eqsf Advisers, Inc. By:/S/ Martin J. Whitman Martin J. Whitman Chairman and Chief Executive Officer M.J. Whitman Advisers, Inc. By:/S/ Martin J. Whitman Martin J. Whitman Chairman and Chief Executive Officer /S/ Martin J. Whitman Martin J. Whitman

from SC 13G/A 1 page Exhibit 1 Joint Filing Agreement in Accordance With Rule 13d-1 (F) Under the Securities Exchange Act of 1934, as Amended, the Undersigned Hereby Agree to the Joint Filing With All Other Reporting Entities (As Such Term Is Defined in the Schedule 13g) on Behalf of Each of Them of a Statement on Schedule 13g (Including Amendments Thereto) With Respect to the Common Stock, $.01 Par Value Per Share, of Advanced Power Technology Inc., Andthat This Agreement Be Included as an Exhibit to Such Joint Filing. This Agreement May Be Executed in Any Number of Counterparts All of Which Taken Together Shall Constitute One and the Same Instrument. in Witness Whereof, the Undersigned Hereby Execute This Agreement This 10th Day of January, 2002. Eqsf Advisers, Inc. By:/S/ Martin J. Whitman Martin J. Whitman Chairman and Chief Executive Officer M.J. Whitman Advisers, Inc. By:/S/ Martin J. Whitman Martin J. Whitman Chairman and Chief Executive Officer /S/ Martin J. Whitman Martin J. Whitman

from SC 13G 1 page Exhibit 1 Joint Filing Agreement in Accordance With Rule 13d-1 (F) Under the Securities Exchange Act of 1934, as Amended, the Undersigned Hereby Agree to the Joint Filing With All Other Reporting Entities (As Such Term Is Defined in the Schedule 13g) on Behalf of Each of Them of a Statement on Schedule 13g (Including Amendments Thereto) With Respect to the Common Stock, $.01 Par Value Per Share, of Advanced Power Technologies, and That This Agreement Be Included as an Exhibit to Such Joint Filing. This Agreement May Be Executed in Any Number of Counterparts All of Which Taken Together Shall Constitute One and the Same Instrument. in Witness Whereof, the Undersigned Hereby Execute This Agreement This 10th Day of December, 2001. Eqsf Advisers, Inc. By:/S/ Martin J. Whitman Martin J. Whitman Chairman and Chief Executive Officer

from S-1/A ~50 pages Underwriting agreement