Exhibit 1.10


           AMENDED FINANCIAL ADVISORY AND INVESTMENT BANKING AGREEMENT
           -----------------------------------------------------------

     This  Agreement  is made and entered  into as of the day of , 1998  between
Andrew Alexander Wise & Company,  Inc., a New York  corporation  ("Consultant"),
and ProtoSource, a corporation organized under the laws of the (the "Company").

     In  consideration of the mutual promises made herein and for other good and
valuable  consideration,   the  receipt  and  sufficiency  of  which  is  hereby
acknowledged, the parties hereto agree as follows:

     1. Purpose: The Company hereby engages Consultant for the term specified in
Paragraph  2 hereof to render  advice to the  Company  as an  investment  banker
relating to  financial  and similar  matters upon the terms and  conditions  set
forth herein.

     2.  Term:  Except as  otherwise  specified  in  Paragraph  4  hereof,  this
Agreement shall be effective from _________, 1998 to _________________, 1999.

     3.  Duties of  Consultant:  During the term of this  Agreement,  Consultant
shall,  upon the request of the  Company,  provide the  Company  with  corporate
finance  and  related  financial  advisory  services,  advice  with  respect  to
potential  acquisitions and other business  transactions and advice with respect
to stockholder  relations matters.  All obligations of the Consultant  contained
herein  shall be  subject  to the  Consultant's  availability  to  perform  such
services  and the amount of notice  received  from the Company.  The  Consultant
shall devote such time and effort to the performance of its duties  hereunder as
the Consultant shall determine is reasonably necessary.  The Consultant may look
to  such  others  for  such  factual  information,  investment  recommendations,
economic  advice and/or  research,  upon which to base its advice to the Company
hereunder, as it shall deem appropriate. The Company recognizes that Consultant


                                                   





now renders and may continue to render financial and other advisory  services to
other  companies  which  may or may not have  policies  and  conduct  activities
similar to those of the Company,  and acknowledges that Consultant shall be free
to render advice and to perform those services for such other companies.

     4.  Compensation:  In consideration for the services rendered by Consultant
to the Company  pursuant  to this  Agreement  (and in  addition to the  expenses
provided  for in  Paragraph  5  hereof),  the  Company  shall pay  Consultant  a
non-refundable  fee of $60,000,  payable in advance,  upon the execution of this
Agreement.  In addition, if any Transaction (as defined below) occurs during the
term of this Agreement or within twelve months thereafter, the Company shall pay
fees to Consultant as follows:

          Consideration                               Fee

       First $1,000,000                       5% of First $1,000,000
       Second $1,000,000                      4% of Second $1,000,000
       Third $1,000,000                       3% of Third $1,000,000
       Fourth $1,000,000                      2% of Fourth $1,000,000
       Consideration in excess of
       the fourth $1,000,000                  1% of Consideration in excess
                                              of the fourth $1,000,000

For  the  purposes  of  this  Agreement,  a  "Transaction"  shall  mean  (i) any
transaction originated by Consultant, other than in the ordinary course of trade
or business of the Company,  whereby,  directly or indirectly,  control of, or a
material interest in, the Company and its subsidiaries or the business or assets
of the Company and its subsidiaries,  is transferred for Consideration,  or (ii)
any transaction  originated by Consultant whereby the Company acquires any other
company, or the assets of any other company or an interest in any other company;

                                        2




and "Consideration"  shall mean the total market value on the day of the closing
of stock,  cash,  assets and all other property (real or personal)  exchanged or
received,  directly or indirectly by the Company or any of its security  holders
in connection with any Transaction.  Any co-broker  retained by Consultant shall
be  paid by  Consultant.  All  Transaction  fees  to be  paid  pursuant  to this
Agreement,  except as otherwise specified,  are due and payable to Consultant in
cash at the  closing  or  closings  of a  Transaction.  In the  event  that this
Agreement shall not be renewed or is terminated for any reason,  notwithstanding
any such non-renewal or termination,  Consultant shall be entitled to the entire
fee provided in this Paragraph 4, for any  Transaction for which the discussions
were initiated during the term of this Agreement and which is consummated within
a period of twelve months after  non-renewal or  termination of this  Agreement.
Nothing  herein shall impose any  obligation on the part of the Company to enter
into any Transaction.

     5. Expenses of  Consultant:  In addition to the fees payable  hereunder and
regardless of whether any  Transaction is proposed or  consummated,  the Company
shall  reimburse  Consultant  for  the  reasonable  fees  and  disbursements  of
Consultant's  counsel  and  Consultant's  reasonable  travel  and  out-of-pocket
expenses  incurred in  connection  with the  services  performed  by  Consultant
pursuant to this Agreement and at the request of the Company,  including without
limitation,  hotels,  food and associated  expenses and long-distance  telephone
calls.

     6. Liability of Consultant:

          (a) In furnishing the Company with advice and other services as herein
provided, neither Consultant nor any officer, director or agent thereof shall be
liable to the Company or its  creditors  for errors of judgment or for anything,
except for the Consultant's intentional or willful misconduct in the performance
of its duties under this Agreement.

                                        3



          (b) It is further  understood and agreed that Consultant may rely upon
information  furnished to it reasonably believed to be accurate and reliable and
that,  except as herein  provided,  Consultant  shall not be accountable for any
loss  suffered by the Company by reason of the  Company's  action or inaction on
the basis of any advice, recommendation or approval of Consultant, its partners,
employees or agents. 

          (c) The Company  acknowledges that all opinions and advice (written or
oral)  given by  Consultant  to the  Company  in  connection  with  Consultant's
engagement  are  intended  solely  for the  benefit  and use of the  Company  in
considering the transaction to which they relate, and the Company agrees that no
person or entity other than the Company shall be entitled to make use of or rely
upon the advice of  Consultant  to be given  hereunder,  and no such  opinion or
advice shall be used for any other purpose or reproduced,  disseminated,  quoted
or  referred  to at any  time,  in any  manner or for any  purpose,  nor may the
Company make any public  references to Consultant,  or use Consultant's  name in
any annual  reports or any other  reports or  releases  of the  Company  without
Consultant's prior written consent.

          (d) The  Company  acknowledges  that  Consultant  makes no  commitment
whatsoever as to making a market in the Company's  securities or to recommending
or advising its clients to purchase the Company's  securities.  Research reports
or corporate  finance reports that may be prepared by Consultant  will, when and
if prepared,  be done solely on the merits  based upon an analysis  performed by
Consultant and its corporate finance personnel.

     7. Company Information:

                                        4




     (a) The Company  shall  furnish to the  Consultant  all data,  material and
other  information  relevant  to  the  performance  by  the  Consultant  of  its
obligations  under  this  Agreement,  or  particular  projects  as to which  the
Consultant  is acting as advisor,  which will permit the  Consultant to know all
facts  material to the advice to be rendered,  and all  material or  information
reasonably requested by the Consultant. The Company acknowledges and agrees that
in performing its services under this  engagement,  Consultant may rely upon the
data,   material  and  other   information   supplied  by  the  Company  without
independently  verifying the accuracy,  completeness or veracity of same. In the
event that the Company  fails or refuses to furnish  any such data,  material or
information reasonably requested by the Consultant, and thus prevents or impedes
the  Consultant's  performance  hereunder,  any  inability of the  Consultant to
perform shall not be a breach of its obligations hereunder.

     (b) Except as contemplated by the terms hereof or as required by applicable
law, Consultant shall keep confidential all non-public  information  provided to
it by the Company and shall not  disclose  such  information  to any third party
without the Company's prior written consent, other than to such of its employees
and advisors as  Consultant  determines in its sole judgment need to have access
thereto.  Notwithstanding the foregoing, the Consultant shall not be required to
maintain  confidentiality  with respect to  information  (i) which is or becomes
part of the public domain;  (ii) of which it had independent  knowledge prior to
disclosure;  (iii)  which comes into the  possession  of the  Consultant  or its
employees or agents in the normal and routine  course of its own  business  from
and through independent  non-confidential  sources; or (iv) which is required to
be disclosed by the Consultant  pursuant to legal process or in accordance  with
governmental  or  regulatory  requirements.  If the  Consultant  is requested or
required  (by oral  questions,  interrogatories,  requests  for  information  or


                                        5





document subpoenas, civil investigative demands, or similar process) to disclose
any confidential  information supplied to it by the Company, or the existence of
other  negotiations  in the  course  of its  dealings  with the  Company  or its
representatives, the Consultant shall, unless prohibited by law, promptly notify
the  Company of such  request(s)  so that the  Company  may seek an  appropriate
protective order.

     8.  Indemnification:  The Company agrees to indemnify and hold harmless the
Consultant,  its partners,  employees,  agents,  representatives and controlling
persons (and the officers,  directors,  employees,  agents,  representatives and
controlling  persons  of each of them)  from  and  against  any and all  losses,
claims,  damages,  liabilities,  costs and  expenses  (and all  actions,  suits,
proceedings  or claims in respect  thereof)  and any legal or other  expenses in
giving testimony or furnishing  documents in response to a subpoena or otherwise
(including,  without  limitation,  the  costs  of  investigating,  preparing  or
defending  any  such  action,  suit,  proceeding  or  claim,  whether  or not in
connection with any action, suit, proceeding or claim in which the Consultant is
a party), as and when incurred, directly or indirectly,  caused by, relating to,
based  upon  or  arising  out of  the  Consultant's  service  pursuant  to  this
Agreement.  The  Company  further  agrees  that the  Consultant  shall  incur no
liability to the Company or any other party on account of this  Agreement or any
acts or  omissions  arising out of or related to the  actions of the  Consultant
relating to this Agreement or the performance or failure to perform any services
under  this  Agreement,  except  for the  Consultant's  intentional  or  willful
misconduct.  The  obligations of the Company under the Section shall survive the
termination of this  Agreement.  

     9. Independent Contractor:  Consultant shall perform its services hereunder
as an  independent  contractor  and  not as an  employee  of the  Company  or an
affiliate thereof. It is expressly

                                        6





understood  and agreed to by the parties  hereto that  Consultant  shall have no
authority to act for,  represent or bind the Company or any affiliate thereof in
any manner,  except as may be agreed to expressly by the Company in writing from
time to time.

     10. Miscellaneous:

          (a) This Agreement between the Company and Consultant  constitutes the
entire agreement and  understanding of the parties hereto and supersedes any and
all previous agreements and understandings, whether oral or written, between the
parties with respect to the matters set forth herein.

          (b) Any notice or communication  permitted or required hereunder shall
be in writing and shall be deemed  sufficiently  given if hand-delivered or sent
(i) postage prepaid by registered  mail,  return receipt  requested,  or (ii) by
facsimile,  to the  respective  parties  as set forth  below,  or to such  other
address as either party may notify the other in writing:

If to the Company, to:          ProtoSource Corporation
                                2300 Tulare Street
                                Suite 210
                                Fresno, CA 93721
                                (209) 486-8638
                                Fax: (209) 490-8630

         with a copy to:        Gary Agron, Esq.
                                5445 DTC Parkway
                                Denver, Colorado 80111

If to Consultant:               Andrew Alexander Wise & Company
                                17 State Street
                                4th Floor
                                New York, New York 10004
                                Attn: Andreas Zigouras
                                (212) 809-7300
                                Fax: (212) 809-7383

                                        7





         with a copy to:         Snow Becker Krauss P.C.
                                 605 Third Avenue
                                 New York, New York 10158
                                 Attn: Charles Snow
                                 (212) 687-3860
                                 Fax: (212) 949-7052

          (c) This  Agreement  shall be binding upon and inure to the benefit of
each  of  the   parties   hereto   and  their   respective   successors,   legal
representatives and assigns.

          (d) This Agreement may be executed in any number of counterparts, each
of which together shall constitute one and the same original document.

          (e) No provision of this Agreement may be amended, modified or waived,
except in a writing signed by all of the parties hereto.

          (f) This Agreement  shall be construed in accordance with and governed
by the laws of the State of New York,  without  giving effect to conflict of law
principles.  The parties  hereby agree that any dispute  which may arise between
them arising out of or in connection  with this  Agreement  shall be adjudicated
before a court located in New York City, and they hereby submit to the exclusive
jurisdiction  of the courts of the State of New York  located  in New York,  New
York and of the Federal  District  Court for the  Southern  District of New York
with respect to any action or legal proceeding  commenced by any party, and they
irrevocably  waive any objection  they now or hereafter may have  respecting the
venue of any such action or proceeding brought in such a court or respecting the
fact that such court is an  inconvenient  forum,  relating  to or arising out of
this  Agreement,  and  consent to the  service of process in any such  action or
legal  proceeding  by means of  registered  or certified  mail,  return  receipt
requested, in care of the address set forth in Section 10(b) hereof.

                                        8




          IN WITNESS  WHEREOF,  the parties hereto have caused this Agreement to
be duly executed, as of the day and year first above written.

                                           ANDREW ALEXANDER WISE & CO., INC.

                                           By:  
                                               --------------------------------
                                               Andreas Zigouras, President


                                           PROTOSOURCE CORPORATION


                                           By:    
                                                --------------------------------
                                                Raymond J. Meyers, President




                                        9