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Instructions for Form I-539A
Each Form I-539A must include the signature of the individual applicant. If you are under 14 years of age, your parent or legal guardian may sign the
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Form I-539A, Supplemental Information for Application to
Aug 28, 2024 Each co-applicant must complete a separate Form I-539A. Do not submit a Form I-539A for the person named in Form I-539. Date of Birth (mm/dd
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Altec M49, M50, M51, and M52 condenser microphone
539A Power Supply. The 539A Power Supply is an ac operated power supply. It is identical to the 540A in size, but does not have the meter or the power switch
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