EXHIBIT 31.1

                                 CERTIFICATION

I, Michael R. Mulcahy, President and Co-Chief Executive Officer of Trans-Lux
Corporation, certify that:

1.  I have reviewed this Report on Form 10-Q (the "Report") of Trans-Lux
    Corporation;

2.  Based on my knowledge, this Report does not contain any untrue statement of
    a material fact or omit to state a material fact necessary to make the
    statements made, in light of the circumstances under which such statements
    were made, not misleading with respect to the period covered by this Report;

3.  Based on my knowledge, the financial statements, and other financial
    information included in this Report, fairly present in all material respects
    the financial condition, results of operations and cash flows of the
    Registrant as of, and for, the periods presented in this Report;

4.  The Registrant's other certifying officers and I are responsible for
    establishing and maintaining disclosure controls and procedures (as defined
    in Exchange Act Rules 13a-15 (e) and 15d-15(e)) for the Registrant and have;

         a)   designed such disclosure controls and procedures, or caused such
              disclosure controls and procedures to be designed under our
              supervision, to ensure that material information relating to the
              Registrant, including its consolidated subsidiaries, is made known
              to us by others within those entities, particularly during the
              period in which this Report is being prepared;

         b)   evaluated the effectiveness of the Registrant's disclosure
              controls and procedures and presented in this Report our
              conclusions about the effectiveness of the disclosure controls and
              procedures, as of the end of the period covered by this Report
              based on such evaluation; and

         c)   disclosed in this Report any change in the Registrant's internal
              control over financial reporting that occurred during the
              Registrant's most recent fiscal quarter that has materially
              affected, or is reasonably likely to materially affect, the
              Registrant's internal control over financial reporting.

5.  The Registrant's other certifying officers and I have disclosed, based on
    our most recent evaluation of internal control over financial reporting, to
    the Registrant's auditors and the audit committee of the Registrant's board
    of directors:

         a)   all significant deficiencies and material weaknesses in the design
              or operation of internal control over financial reporting which
              are reasonably likely to adversely affect the Registrant's ability
              to record, process, summarize and report financial information;
              and

         b)   any fraud, whether or not material, that involves management or
              other employees who have a significant role in the Registrant's
              internal control over financial reporting.



                                        /s/ Michael R. Mulcahy
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Date:  August 15, 2005                  Michael R. Mulcahy
                                        President and Co-Chief Executive Officer