Exhibit 4.2
     Form of 8%Convertible Debenture issued to Messrs. Howland and Hoops(1)

NEITHER THIS DEBENTURE NOR THE SHARES OF COMMON STOCK  ISSUABLE UPON  CONVERSION
OF THIS  DEBENTURE  HAS BEEN  REGISTERED  UNDER THE  SECURITIES  ACT OF 1933, AS
AMENDED,  OR ANY STATE  SECURITIES  LAW, AND SUCH  SECURITIES MAY NOT BE SOLD OR
OTHERWISE  TRANSFERRED  IN THE ABSENCE OF AN  EFFECTIVE  REGISTRATION  STATEMENT
UNDER SAID ACT OR STATE LAW OR AN OPINION OF COUNSEL THAT SUCH  REGISTRATION  IS
NOT REQUIRED.

NA-                                                           New York, New York
$     ,000                                                    January     , 1999


                             TECHNICAL VENTURES INC.

                  8% CONVERTIBLE DEBENTURE DUE JANUARY 31, 2002

     FOR VALUE RECEIVED,  Technical  Ventures Inc., a New York  corporation (the
"Company"),  hereby  promises to pay to the order of , the  principal  amount of
thousand dollars ($ ,000) on January 31, 2002.  Interest on this Debenture shall
be payable  quarterly,  on the last day of April,  July,  October and January of
each year to the  holder of record of this  Debenture  on the 15th day of April,
July, October and January,  respectively,  with the first interest payment being
due on April 15, 1999.  Interest  shall be payable at the rate of eight  percent
(8%) per annum,  computed  on the basis of a 360-day  year,  using the number of
days actually  elapsed.  Interest shall be payable,  to the extent  permitted by
law, at the rate equal to the lesser of (i) eighteen  percent (18%) per annum or
(ii) the maximum rate permitted by law, on the entire unpaid principal amount of
this  Debenture  from and after the time that such  principal  amount shall have
become due and payable  (whether at  maturity or by  acceleration).  In no event
shall the rate of interest exceed the maximum interest rate which may legally be
charged,  and any payments  which would result in an interest  payment  being in
excess of such legal  rate shall be treated  for all  purposes  as  payments  of
principal.  This Debenture is one of the Company's 8% Convertible Debentures due
January  31, 2002  (collectively,  the  "Debentures"),  which were issued in the
aggregate  maximum  principal  amount of two  hundred  thirty  thousand  dollars
($230,000).  The  Debentures  were issued  pursuant to  subscription  agreements
(collectively,   the   "Subscription   Agreements"  and  each,  a  "Subscription
Agreement").  As used in this Debenture,  the term "Closing Date" shall mean the
"First Closing Date," as defined in the Subscription Agreements.

                                    ARTICLE 1
                            Covenants of the Company

     Until the principal of and interest on the Debentures  shall have been paid
in full:

     (a)Continued  Organization;  Good Standing. Each of the Company and each of
its present or future  subsidiaries  (each,  a  "Subsidiary")  will continue its
corporate  existences  and  good  standing  in  the  state  or  province  of its
organization and in each other state or province in which it owns or leases real
property.



                                        1


     (b) Filings under the Securities Exchange Act of 1934. The Company's common
stock, par value $.01 per share ("Common Stock"),  has been registered  pursuant
to  Section  12(g) of the  Securities  Exchange  Act of 1934,  as  amended  (the
"Exchange  Act").  The Company shall file all reports  required by Section 12 of
the Exchange Act not later than the date that such reports are due.

     (c) Comply with Obligations under Subscription Agreement. The Company shall
comply with and perform in a timely  manner all of its  obligations  pursuant to
the Subscription Agreements.

                                    ARTICLE 2
                       Events of Default and Acceleration

     (a) Events of Default  Defined.  The entire unpaid principal amount of this
Debenture,  together with interest  thereon  shall,  at the option of the holder
this Debenture, exercised by written notice to the Company, forthwith become and
be due and payable if any one or more the following events ("Events of Default")
shall have occurred (for any reason  whatsoever and whether such happening shall
be  voluntary  or  involuntary  or be affected or come about by operation of law
pursuant to or in compliance with any judgment, decree, or order of any court or
any order, rule or regulation of any administrative or governmental body) and be
continuing. An Event of Default shall occur:

          (i) if failure  shall be made in the payment of the  principal of this
     Debenture when and as the same shall become due; or

          (ii) if failure  shall be made in the  payment of any  installment  of
     interest  on this  Debenture  when and as the  same  shall  become  due and
     payable  whether at maturity or otherwise and such failure  shall  continue
     for ten (10) days after the date such payment is due; or

          (iii) if the Company  shall violate or breach any of the covenants set
     forth in this  Debenture  and such  violation or breach shall  continue for
     fifteen (15) days thereafter; or

          (iv)  if  the   Company   shall   violate   or   breach   any  of  the
     representations,  warranties,  covenants or agreements  contained in any of
     the  Subscription  Agreements,  and such violation or breach shall continue
     for fifteen (15) days thereafter; or

          (v) if the Company or any Subsidiary  shall consent to the appointment
     of a receiver,  trustee or liquidator of itself or of a substantial part of
     its  property,  or shall  admit in writing its  inability  to pay its debts
     generally  as they become due, or shall make a general  assignment  for the
     benefit of creditors, or shall file a voluntary petition in bankruptcy,  or
     an answer seeking  reorganization  in a proceeding under any bankruptcy law
     (as now or  hereafter  in  effect)  or an  answer  admitting  the  material
     allegations of a petition filed against the Company or any  Subsidiary,  in
     any such  proceeding,  or shall by voluntary  petition,  answer or consent,
     seek  relief  under the  provisions  of any other  now  existing  or future
     bankruptcy or other similar law providing for the reorganization or winding
     up of corporations, or an arrangement, composition, extension or adjustment
     with its or their  creditors,  or shall, in a petition in bankruptcy  filed
     against  it or  them be  adjudicated  a  bankrupt,  or the  Company  or any
     Subsidiary or their directors or a majority of its


                                        2


          stockholders  shall vote to dissolve or  liquidate  the Company or any
     Subsidiary  other than a liquidation  involving a transfer of assets from a
     Subsidiary to the Company or another Subsidiary; or

          (vi) if an involuntary  petition shall be filed against the Company or
     any Subsidiary  seeking relief against the Company or any Subsidiary  under
     any now  existing or future  bankruptcy,  insolvency  or other  similar law
     providing  for the  reorganization  or  winding up of  corporations,  or an
     arrangement,  composition,  extension  or  adjustment  with  its  or  their
     creditors, and such petition shall not be vacated or set aside within sixty
     (60) days from the filing thereof; or

          (vii) if a court  of  competent  jurisdiction  shall  enter an  order,
     judgment  or decree  appointing,  without  consent  of the  Company  or any
     Subsidiary,  a  receiver,  trustee  or  liquidator  of the  Company  or any
     Subsidiary,  or of all or  any  substantial  part  of the  property  of the
     Company or any  Subsidiary,  or  approving  a petition  filed  against  the
     Company or any Subsidiary  seeking a  reorganization  or arrangement of the
     Company or any Subsidiary  under the Federal  bankruptcy  laws or any other
     applicable  law or  statute  of the  United  States of America or any State
     thereof,  or any  substantial  part of the  property  of the Company or any
     Subsidiary shall be sequestered;  and such order,  judgment or decree shall
     not be  vacated  or set aside  within  sixty (60) days from the date of the
     entry thereof, or

          (viii) if,  under the  provisions  of any law for the relief or aid of
     debtors,  any court of  competent  jurisdiction  shall  assume  custody  or
     control of the Company or any Subsidiary or of all or any substantial  part
     of the  property  of the  Company  or any  Subsidiary  and such  custody or
     control  shall not be  terminated  within  sixty (60) days from the date of
     assumption of such custody or control.

     (b)  Rights  of  Debenture  Holder.  Nothing  in this  Debenture  shall  be
construed  to modify,  amend or limit in any way the right of the holder of this
Debenture to bring an action against the Company.


                                    ARTICLE 3
                                   Conversion

     (a) Right of Conversion.

          (i)  At  any  time  on  or  after  the  Initial  Conversion  Date,  as
     hereinafter  defined, the holder of this Debenture shall have the right, in
     whole at any time and in part from time to time, to convert all or any part
     of the principal amount of this Debenture outstanding from time to time and
     any accrued interest and any accrued  Registration  Payment, as hereinafter
     defined,  into such number of shares of Common  Stock as is  determined  by
     dividing the amount of principal  and  interest  and  Registration  Payment
     being converted by the Conversion Price, as hereinafter defined;  provided,
     that the right to convert this Debenture  shall  terminate at 5:00 P.M. New
     York  City time on the  business  day  prior to the  maturity  date of this
     Debenture.

          (ii) The "Initial Conversion Date" shall mean the first to occur of:


                                        3


               (A) One year from the Closing Date, or

               (B)  The  effective  date  of  the  Registration   Statement,  as
          hereinafter defined.

     (b)  Exercise of  Conversion  Right.  In order to exercise  the  conversion
right, the holder of this Debenture shall surrender this Debenture at the office
of the Company together with written instructions  specifying the portion of the
principal  amount of and  accrued  interest  on this  Debenture  and any accrued
Registration Payment which the holder elects to convert and the registration and
delivery  of  certificates  for  shares  of  Common  Stock  issuable  upon  such
conversion.  The  shares  of  Common  Stock  issuable  upon  conversion  of this
Debenture are referred to as the  "Conversion  Shares." The number of Conversion
Shares shall be  determined  by dividing  the amount of  principal  and interest
being  converted  by the  Conversion  Price  in  effect  on  the  date  of  such
conversion,  which shall be the date this  Debenture is presented to the Company
for conversion. The holder shall thereupon be deemed the holder of the shares of
Common  Stock  so  issued  and  the  principal  amount  of and  interest  on the
Debenture,  to the  extent  so  converted,  shall be deemed to have been paid in
full. If this  Debenture  shall have been  converted in part, the holder of this
Debenture shall be entitled to a new Debenture representing the unpaid principal
balance of such Debenture  remaining after deducting the principal amount of the
Debenture converted.  Any accrued interest or Registration Payment not converted
into Common  Stock  pursuant to this  Paragraph 3 shall be paid to the holder in
cash at the time of conversion.

     (c) Conversion Price.

          (i) The Conversion Price shall be the lesser of the Maximum Conversion
     Price,  as  hereinafter  defined,  or  the  Current  Conversion  Price,  as
     hereinafter  defined,  which shall be subject to adjustment as  hereinafter
     provided.

          (ii) The Maximum  Conversion  Price shall mean 1 and /100 dollars ($ .
     ).

          (iii) The Current  Conversion  Price shall mean  seventy  five percent
     (75%) of the average closing bid price of the Common Stock for the ten (10)
     trading days prior to the date on which this  Debenture  is  presented  for
     conversion  on the principal  stock  exchange or market on which the Common
     Stock is traded.  If there is more than one  reported  closing bid price on
     any day,  the lowest  closing  bid price  shall be used for the closing bid
     price on such day. If this Debenture is being  converted in part only, then
     the Current  Conversion  Price shall relate to the  Debenture to the extent
     that principal and interest is converted,  and the Current Conversion Price
     for any subsequent  conversion  shall be determined in accordance with this
     Paragraph 3(c)(iii) at the time of such subsequent conversion.

          (iv) The date that this  Debenture  is  presented  to the  Company for
     conversion  shall  mean the date on which  this  Debenture  is  either  (A)
     physically  delivered  to  Company by the  holder  --------  1 The  Maximum
     Conversion  Price  shall be the  average of the  closing bid prices for the
     Company's  common  stock for the ten (10) trading days prior to the Closing
     Date.


                                        4


          of this  Debenture or such holder's  representative,  (B) deposited in
     the mail,  with  proper  postage  affixed  addressed  to the Company at its
     address  as  hereinafter  provided  or  (C)  delivered  to  a  domestic  or
     international,  as the case may be,  delivery  service  that  provides  for
     evidence of delivery.

          (v) The Maximum  Conversion  Price shall be subject to  adjustment  as
     follows:

               (A) If the Company shall, subsequent to the Closing Date, (A) pay
          a dividend  or make a  distribution  on its shares of Common  Stock in
          shares of Common Stock,  (B) subdivide or reclassify  its  outstanding
          Common  Stock  into a greater  number of  shares,  or (C)  combine  or
          reclassify  its  outstanding  Common  Stock  into a smaller  number of
          shares or otherwise  effect a reverse  split,  the Maximum  Conversion
          Price in effect at the time of the record  date for such  dividend  or
          distribution or of the effective date of such subdivision, combination
          or  reclassification  shall  be  proportionately  adjusted  upward  or
          downward,   as  the  case  may  be.  Such  adjustment  shall  be  made
          successively  whenever any event listed in this  Paragraph  3(c)(v)(A)
          shall occur.

               (B) In case the Company  shall,  subsequent  to the Closing Date,
          issue rights or warrants to all holders of its Common Stock  entitling
          them  to  subscribe  for  or  purchase  shares  of  Common  Stock  (or
          securities  convertible  into  Common  Stock) at a price (or  having a
          conversion  price per share) less than the current market price of the
          Common Stock (as defined in Paragraph 3(c)(v)(D) of this Debenture) on
          the record date mentioned below, the Maximum Conversion Price shall be
          adjusted  so that the Maximum  Conversion  Price shall equal the price
          determined  by  multiplying  the  Maximum  Conversion  Price in effect
          immediately  prior to the date of such  issuance  by a  fraction,  the
          numerator  of which  shall be the  number of  shares  of Common  Stock
          outstanding  on the  record  date  mentioned  below plus the number of
          additional  shares of Common Stock which the aggregate  offering price
          of the total  number of shares  of  Common  Stock so  offered  (or the
          aggregate  conversion price of the convertible  securities so offered)
          would  purchase at such  current  market price per share of the Common
          Stock,  and the  denominator of which shall be the number of shares of
          Common Stock  outstanding  on such record date plus the maximum number
          of  additional  shares of Common  Stock  offered for  subscription  or
          purchased  (or into which the  convertible  securities  so offered are
          convertible). Such adjustment shall be made successively whenever such
          rights or warrants are issued and shall become  effective  immediately
          after the record date for the  determination of stockholders  entitled
          to receive such rights or  warrants;  and to the extent that shares of
          Common  Stock or  securities  convertible  into  Common  Stock are not
          delivered after the expiration of such rights or warrants, the Maximum
          Conversion  Price shall be readjusted to the Maximum  Conversion Price
          which  would  then be in  effect  had the  adjustments  made  upon the
          issuance  of such  rights  or  warrants  been  made  upon the basis of
          delivery of only the number of shares of Common  Stock (or  securities
          convertible into Common Stock) actually delivered.

               (C) In case the Company  shall,  subsequent  to the Closing Date,
          distribute   to  all  holders  of  Common   Stock   evidences  of  its
          indebtedness or assets (excluding cash dividends or distributions paid
          out of current earnings and dividends or distributions  referred to in
          Paragraph  3(c)(v)(A)  of this  Debenture) or  subscription  rights or
          warrants (excluding those referred to in Paragraph  3(c)(v)(B) of this
          Debenture),  then in each such case the  Maximum  Conversion  Price in
          effect  thereafter  shall be  determined  by  multiplying  the Maximum
          Conversion Price in effect immediately prior thereto by a fraction, of
          which  the  numerator  shall be the  total  number of shares of Common
          Stock outstanding  multiplied by the current market price per share of
          Common Stock


                                        5


               (as defined in Paragraph 3(c)(v)(D) of this Debenture),  less the
          fair market value (as determined in good faith by the Company's  Board
          of  Directors)  of  said  assets  or  evidences  of   indebtedness  so
          distributed  or  of  such  rights  or  warrants,   and  of  which  the
          denominator  shall be the total  number  of  shares  of  Common  Stock
          outstanding  multiplied  by such  current  market  price  per share of
          Common Stock. Such adjustment shall be made successively whenever such
          a record date is fixed.  Such  adjustment  shall be made  whenever any
          such distribution is made and shall become effective immediately after
          the record  date for the  determination  of  stockholders  entitled to
          receive such distribution.

               (D)  For  the  purpose  of  any  computation   under   Paragraphs
          3(c)(v)(B)  and (C) of this  Debenture,  the current  market price per
          share of Common Stock at any date shall be deemed to be the average of
          the  daily  closing  prices  for ten  (10)  consecutive  trading  days
          commencing  twenty (20)  trading  days  before such date.  The closing
          price  for  each  day  shall  be the  reported  closing  price  on the
          principal national  securities  exchange or market on which the Common
          Stock is admitted  to trading or listed,  or if not listed or admitted
          to  trading  on any such  exchange  or such  market  or if there is no
          trading on any day in the  computation  period,  the  closing  low bid
          price as reported by the Nasdaq Stock Market ("Nasdaq"),  the National
          Quotation Bureau, Inc. or other similar  organization,  shall be used,
          or if  such  prices  are not  available,  the  fair  market  price  as
          determined in good faith by the Board of Directors.

          (vi) In the event that,  during any ten (10) trading day period during
     which a computation of the Current  Market Price is being made,  there is a
     record date for an event described in Paragraph  3(c)(v)(A),  (B) or (C) of
     this  Debenture,  the closing bid price of the Common Stock for each day in
     such  period  which is prior to such  record  date shall be adjusted in the
     same manner as the Maximum Conversion Price.

          (vii) No adjustment in the  Conversion  Price shall be made:  (A) upon
     the  issuance  or sale of shares  of  Common  Stock  upon the  exercise  of
     warrants and options  outstanding  as of the date  hereof;  or (B) upon the
     issuance of options granted prior to the date hereof pursuant to any of the
     Company's stock option plans (collectively,  the "Plans");  or (C) upon the
     issuance of warrants to purchase Common Stock, with an exercise price equal
     to not less than the fair market  value of the Common Stock on the date the
     options were granted pursuant to the Plans subsequent to the date hereof or
     the sale of any shares of Common Stock pursuant to the exercise of any such
     warrants;  or (D) upon the  issuance of any shares of capital  stock to the
     Company by any of its subsidiaries.

     (d)   Reclassification,   Reorganization   or   Merger.   In  case  of  any
reclassification,  capital  reorganization or other change of outstanding shares
of Common Stock of the Company, or in case of any consolidation or merger of the
Company with or into another  corporation (other than a merger with a Subsidiary
in which  merger the Company is the  continuing  corporation  and which does not
result  in any  reclassification,  capital  reorganization  or other  change  of
outstanding shares of Common Stock or the class issuable upon conversion of this
Debenture) or in case of any sale, lease or conveyance to another corporation of
the property of the Company as an entirety,  the Company  shall,  as a condition
precedent to such transaction, cause effective provisions to be made so that the
holder of this  Debenture  shall have the right  thereafter by  converting  this
Debenture,  to  purchase  the kind and  amount  of  shares  of stock  and  other
securities  and  property   receivable  upon  such   reclassification,   capital
reorganization and other change, consolidation,  merger, sale or conveyance by a
holder of the number of shares of Common Stock which might have been


                                        6


purchased  upon  conversion  of  this  Debenture   immediately   prior  to  such
reclassification,  change,  consolidation,  merger, sale or conveyance. Any such
provision  shall  include  provision  for  adjustments  which shall be as nearly
equivalent  as may  be  practicable  to the  adjustments  provided  for in  this
Debenture. The foregoing provisions of this Paragraph 3(d) shall similarly apply
to successive  reclassifications,  capital reorganizations and changes of shares
of Common Stock and to successive consolidations, mergers, sales or conveyances.
In the  event  that in  connection  with  any  such  capital  reorganization  or
reclassification,  consolidation,  merger, sale or conveyance, additional shares
of Common  Stock  shall be  issued  in  exchange,  conversion,  substitution  or
payment,  in whole in part,  for a security  of the  Company  other than  Common
Stock, such transaction shall be treated as a reclassification or reorganization
pursuant to this Paragraph 3(d).

     (e)  Fractional  Shares.  No  fractional  shares  or  script   representing
fractional  shares shall be issued upon the  conversion of any  Debentures.  If,
upon any full or partial conversion of this Debenture,  the holder would, except
for the provisions of this  Paragraph  3(e), be entitled to receive a fractional
share of Common Stock, then the number of shares of Common Stock to be issued on
such  conversion  shall be  rounded  up to the next  higher  integral  number of
shares.


                                    ARTICLE 4
     Filing of S-3 Registration Statement; Payment for Failure to Register.

     (a) As provided in the  Subscription  Agreement,  the Company  shall file a
registration  statement (the "Registration  Statement") under the Securities Act
of 1933, as amended (the "Securities  Act") on Form S-3 covering the sale of the
Conversion  Shares by the holders  thereof,  and the  Company  will use its best
efforts  to have  such  registration  statement  declared  effective  as soon as
possible  thereafter.  The  Company  shall  take such  steps to insure  that the
Registration  Statement  is current and  effective  until all of the  Conversion
Shares shall have been sold or until such time as all of the  Conversion  Shares
issuable upon all of the Debentures may be sold without registration pursuant to
Rule 144 of the Securities and Exchange  Commission  (the  "Commission")  or any
similar  subsequent  rule  without  regard  to  volume  limitations  and  filing
requirements.

     (b) The Company recognizes that its agreement to have the Conversion Shares
and the Warrant Shares,  as defined in the  Subscription  Agreement,  registered
pursuant  to the  Securities  Act in a timely  manner  (with  time  being of the
essence) was a material  inducement for the holder of this Debenture to purchase
this  Debenture,  and that the  failure of the  Company to have such  Conversion
Shares and Warrant Shares so registered would cause damage to the holder of this
Debenture.  Accordingly, if the Registration Statement is not declared effective
by the Commission by the Registration  Date, the Company shall pay the holder of
this Debenture, as liquidated damages for such failure and not as a penalty, the
Registration Payment, as hereinafter defined.

     (c) The  Registration  Payment  shall mean the  Applicable  Percentage,  as
hereinafter defined,  multiplied by the number of days between Registration Date
and the date on which the  Registration  Statement is declared  effective by the
Commission.  In making  such  computation,  the  Registration  Date shall not be
counted, and the date on which the Registration  Statement is declared effective
shall be counted.

     (d) The Registration  Date shall be the one hundred  twentieth  (120th) day
following the


                                        7


Closing Date.

     (e) The Applicable Percentage shall mean one-fifteenth of one percent (.066
2/3%) for each day after the Registration  Date that the Registration  Statement
has not been declared effective by the Commission.

     (f) Payment of the  Registration  Payment shall be made on the first day of
each calendar month following the Registration Date, based on the amount accrued
to the day prior to the date of such payment, except that the last payment shall
be  made  within  two  (2)  business  days  after  the  effective  date  of  the
Registration Statement.

     (g)  The  holder  of  this   Debenture  may  convert  any  portion  of  the
Registration Payment as provided in Paragraph 3(b) of this Debenture.


                                    ARTICLE 5
                                  Miscellaneous

     (a)  Transferability.  This Debenture shall not be transferred  except in a
transaction  exempt  from  registration  pursuant  to  the  Securities  Act  and
applicable  state  securities  law. The Company shall treat as the owner of this
Debenture the person shown as the owner on its books and records.

     (b) No Right of Prepayment. Without the prior written consent of the holder
of this  Debenture,  the  Company  shall have no right to prepay or redeem  this
Debenture.

     (c) WAIVER OF TRIAL BY JURY. IN ANY LEGAL  PROCEEDING TO ENFORCE PAYMENT OF
THIS  DEBENTURE,  THE  COMPANY  WAIVES  TRIAL BY JURY,  CLAIMS  FOR  OFFSET  AND
COUNTERCLAIMS, IF ANY.

     (d) Legal  Fees.  In the event  that the holder of this  Debenture  engages
counsel in connection with the  administration or enforcement of this Debenture,
the Company  shall pay all  reasonable  legal fees and expenses  incurred by the
holder, regardless of whether an action has been commenced.

     (e)  Governing  Law.  This  Debenture  shall be governed by the laws of the
State of New York  applicable to agreement  executed and to be performed  wholly
within such State without regard to principles of conflict of laws.

     (f) Court  Jurisdiction.  The Company  hereby (i) consents to the exclusive
jurisdiction  of the United States  District Court for the Southern  District of
New York and Supreme Court of the State of New York in the County of New York in
any action  relating to or arising out of this  Debenture,  (ii) agrees that any
process  in any such  action  may be served  upon it, in  addition  to any other
method of service  permitted  by law, by certified or  registered  mail,  return
receipt requested,  or by an overnight courier service which obtains evidence of
delivery, with the same full force and


                                        8


effect as if personally  served upon him in New York City,  and (iii) waives any
claim that the  jurisdiction of any such tribunal is not a convenient  forum for
any such action and any defense of lack of in personam jurisdiction with respect
thereto.

     (g)  Notices.  Notice to the Company  shall be given to the Company at 3411
McNicoll Avenue,  Unit 11,  Scarborough,  Ontario,  Canada, M1V 2V6,  telecopier
(416) 299-9545, Attention of Mr. Frank Mortimer,  President, or to the holder at
the address set forth on the Company's records,  or to such other address as the
Company or the holder may advise by hand delivery, certified or registered mail,
return  receipt  requested,  overnight  courier  service,  or by  telecopier  if
confirmation  of receipt is given or of  confirmation of transmission is sent by
mail as herein provided.

         IN WITNESS  WHEREOF,  the Company has executed this Agreement as of the
date and year first aforesaid.

                                                         TECHNICAL VENTURES INC.


                                                                             By:
                                                       Frank Mortimer, President




                                        9


                              NOTICE OF CONVERSION


                       [To be Signed Only Upon Conversion
                          of Part or All of Debentures]

                             TECHNICAL VENTURES INC.

     The undersigned,  the holder of the foregoing Debenture,  hereby surrenders
such Debenture for conversion into shares of Common Stock of IAS Communications,
Inc. to the extent of $ * unpaid  principal  amount of and  interest due on such
Debenture,  and requests that the  certificates for such shares be issued in the
name of , and delivered to , whose address is .



DATED:





     (Signature)

     (Signature  must  conform in all respects to name of holder as specified on
the face of the Debenture.)


*        Insert here the unpaid  principal  amount of the Debenture  (or, in the
         case of a  partial  conversion,  the  portion  thereof  as to which the
         Debenture is being converted).  In the case of a partial conversion,  a
         new  Debenture   will  be  issued  and  delivered,   representing   the
         unconverted  portion of the unpaid  principal amount of this Debenture,
         to or upon the order of the holder surrendering such Debenture.



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