Document:

Exhibit 10.6

 

CONVERTIBLE PROMISSORY NOTE

 

	US $500,000	October 18th, 2016

 

For good and valuable consideration,
Amarantus BioScience Holdings, Inc., a Navadacorporation, (“Maker”), hereby makes and delivers this Convertible
Promissory Note (this “Note”) in favor of Dominick & Dickerman, LLC, (“Holder”),
and hereby agree as follows:

 

1.          Principal
Obligation and Interest. For value received, Maker promises to pay to Holder, in currently available funds of the
United States, the principal sum of Five Hundred Thousand United States Dollars ($500,000). Maker’s obligation under
this Note shall be non-interest bearing.

 

2.          Payment
Terms.

 

a.       All
principal then outstanding shall be due and payable by the Maker to the Holder on or before 12 months (365) Days from the
date of issuance of this Note.

 

b.       Maker
shall have the right to prepay all or any part of the principal under this Note without penalty upon not less than ten (10) days
prior written notice to Holder.

 

c.       Holder
may, upon not less than five (5) days written notice to Maker, convert all or part of the then unpaid principal balance due of
this Note into common stock of the Maker pursuant to the terms set forth herein.

 

3.         Conversion. Terms of Conversion:“Mandatory
Conversion”: The Notes will be converted on April 18, 2017 ( the “Conversion Date”) into the Company’s
common stock in fully registered, unrestricted and fully tradeable form (the “Shares”) in the amount of a) US$500,000
(“Principal Amount") using the price per share of $0.025/share (the “Conversion Price”) to determine
the number of shares to be delivered.

 

No fraction of a share or scrip
representing a fraction of a share will be issued on conversion, but the number of shares issuable shall be rounded to the nearest
whole share. The date on which Notice of Conversion is given (the “Conversion Date”) shall be deemed to be the date
on which the Holder faxes the Notice of Conversion duly executed to the Maker. Facsimile delivery of the Notice of Conversion shall
be accepted by the Maker at facsimile number (415) 688-4484 Attn.: Gerald Commissiong. Certificates representing Common
Stock upon conversion will be delivered to the Holder within five (5) trading days from the date the Notice of Conversion is delivered
to the Maker. Delivery of shares upon conversion shall be made to the address specified by the Holder or its assigns in the Notice
of Conversion.

 

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4.          Conversion
Price. Upon any conversion of this Note, the conversion price shall be $0.025 per share, subject to adjustment from time
to time upon the happening of certain events (the “Conversion Price”) as set forth below.

 

a.       Stock
Splits, etc. In case the Maker shall: (i) pay a dividend in shares of Common Stock or make a distribution in shares of Common
Stock to holders of its outstanding Common Stock, (ii) subdivide its outstanding shares of Common Stock into a greater number of
shares of Common Stock, (iii) combine its outstanding shares of Common Stock into a smaller number of shares of Common Stock, or
(iv) issue any shares of its capital stock in a reclassification of the Common Stock, then the number of shares of Common Stock
issuable upon conversion of this Note immediately prior thereto shall be adjusted so that the holder of this Note shall be entitled
to receive the kind and number of shares of Common Stock which he would have owned or have been entitled to receive had such Note
been converted in advance thereof. An adjustment made pursuant to this paragraph shall become effective immediately after the effective
date of such event retroactive to the record date, if any, for such event.

 

b.       Reorganization,
Reclassification, Merger, Consolidation or Disposition of Assets. In case the Maker shall reorganize its capital, reclassify
its capital stock, consolidate or merge with or into another corporation (where the Maker is not the surviving corporation or where
there is a change in or distribution with respect to the Common Stock of the Maker), or sell, transfer or otherwise dispose of
all or substantially all its property, assets or business to another corporation and, pursuant to the terms of such reorganization,
reclassification, merger, consolidation or disposition of assets, shares of common stock of the successor or acquiring corporation,
or any cash, shares of stock or other securities or property of any nature whatsoever (including warrants or other subscription
or purchase rights) in addition to or in lieu of common stock of the successor or acquiring corporation (“Other Property”),
are to be received by or distributed to the holders of Common Stock of the Maker, then Holder shall have the right thereafter to
receive, upon conversion of this Note, the number of shares of common stock of the successor or acquiring corporation or of the
Maker, if it is the surviving corporation, and Other Property receivable upon or as a result of such reorganization, reclassification,
merger, consolidation or disposition of assets by a holder of the number of shares of Common Stock into which this Note is convertible
immediately prior to such event. In case of any such reorganization, reclassification, merger, consolidation or disposition of
assets, the successor or acquiring corporation (if other than the Maker) shall expressly assume the due and punctual observance
and performance of each and every covenant and condition of this Note to be performed and observed by the Maker and all the obligations
and liabilities hereunder, subject to such modifications as may be deemed appropriate (as determined in good faith by resolution
of the Board of Directors of the Maker) in order to provide for adjustments of the number of shares of common stock into which
this Note is convertible which shall be as nearly equivalent as practicable to the adjustments provided for in this Section 2.4(b).
For purposes of this Section 2.4(b), “common stock of the successor or acquiring corporation” shall include stock of
such corporation of any class which is not preferred as to dividends or assets over any other class of stock of such corporation
and which is not subject to redemption and shall also include any evidences of indebtedness, shares of stock or other securities
which are convertible into or exchangeable for any such stock, either immediately or upon the arrival of a specified date or the
happening of a specified event and any warrants or other rights to subscribe for or purchase any such stock. The foregoing provisions
of this Section 2.4(b) shall similarly apply to successive reorganizations, reclassifications, mergers, consolidations or disposition
of assets.

 

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c.        Notice
of Adjustment. Whenever the number of shares of Common Stock or number or kind of securities or other property issuable upon
the conversion of this Note or the Conversion Price is adjusted, as herein provided, the Maker shall promptly mail by registered
or certified mail, return receipt requested, to the Holder of this Note notice of such adjustment or adjustments setting forth
the number of shares of Common Stock (and other securities or property) issuable upon the conversion of this Note and the Conversion
Price of such shares of Common Stock (and other securities or property) after such adjustment, setting forth a brief statement
of the facts requiring such adjustment and setting forth the computation by which such adjustment was made. Such notice, in the
absence of manifest error, shall be conclusive evidence of the correctness of such adjustment.

 

5.          Representations
and Warranties of Maker. Maker hereby represents and warrants the following to Holder:

 

a.       Maker
and those executing this Note on its behalf have the full right, power, and authority to execute, deliver and perform the Obligations
under this Note, which are not prohibited or restricted under the articles of incorporation or bylaws of Maker. This Note has been
duly executed and delivered by an authorized officer of Maker and constitutes a valid and legally binding obligation of Maker enforceable
in accordance with its terms.

 

b.       The
execution of this Note and Maker’s compliance with the terms, conditions and provisions hereof does not conflict with or
violate any provision of any agreement, contract, lease, deed of trust, indenture, or instrument to which Maker is a party or by
which Maker is bound, or constitute a default thereunder.

 

6.          Defaults.
The following events shall be defaults under this Note:

 

a.        Maker’s
failure to remit any payment under this Note on before the date due, if such failure is not cured in full within ten (10) days
of written notice of default;

 

b.        Maker’s
failure to perform or breach of any non-monetary obligation or covenant set forth in this Note or in the Agreement if such failure
is not cured in full within ten (10) days following delivery of written notice thereof from Holder to Maker;

 

c.        If
Maker is dissolved, whether pursuant to any applicable articles of incorporation or bylaws, and/or any applicable laws, or otherwise;

 

d.        The
entry of a decree or order by a court having jurisdiction in the premises adjudging the Maker bankrupt or insolvent, or approving
as properly filed a petition seeking reorganization, arrangement, adjustment or composition of or in respect of the Maker under
the federal Bankruptcy code or any other applicable federal or state law, or appointing a receiver, liquidator, assignee or trustee
of the Maker, or any substantial part if its property, or ordering the winding up or liquidation of its affairs, and the continuance
of any such decree or order unstayed and in effect for a period of twenty (20) days; or

 

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g.
       Maker’s institution of proceedings to be adjudicated a bankrupt or insolvent, or
the consent by it to the institution of bankruptcy or insolvency proceedings against it, or its filing of a petition or answer
or consent seeking reorganization or relief under the federal Bankruptcy Code or any other applicable federal or state law, or
its consent to the filing of any such petition or to the appointment of a receiver, liquidator, assignee or trustee of the company,
or of any substantial part of its property, or its making of an assignment for the benefit of creditors or the admission by it
in writing of its inability to pay its debts generally as they become due, or the taking of corporate action by the Maker in furtherance
of any such action.

 

h.       The
failure by Maker to timely file with the United States Securities and Exchange Commission (“SEC”) all reports
and other documents required of the Maker under the Securities Act of 1933 (“Securities Act”) and the Securities Exchange
Act of 1934 (“Exchange Act”).

 

7.          Interest
To Accrue Upon Default. Upon the occurrence of an event of default by Maker under this Note, the balance then owing under
the terms of this Note shall accrue interest at the rate of Ten Percent percent (10.0%) per annum from the date of default
until Holder is satisfied in full.

 

8.         Change of Control:If
an acquisition or similar change of control transaction occurs prior to the Conversion Date, then upon the closing of such transaction,
the Notes will, at the election of the Note Holder, become

 

a)       payable
upon demand as of the closing of such transaction; or

 

b)       redeemable
for a payment equal to the amount each Note Holder would have received had the Note converted immediately prior to the
transaction to be paid in the same form of consideration (e.g. a mix of cash and stock) received by the other equity holders
in the transaction.

 

9.          Choice
of Laws. This Note shall be constructed and construed in accordance with the internal substantive laws of the State of
Nevada, without regard to the choice of law principles of said State.

 

10.        Costs
of Collection. Should the indebtedness represented by this Note, or any part hereof, be collected at law, in equity, or
in any bankruptcy, receivership or other court proceeding, or this Note be placed in the hands of any attorney for collection after
default, Maker agrees to pay, in addition to the principal and interest due hereon, all reasonable attorneys’ fees, plus
all other costs and expenses of collection and enforcement, including any fees incurred in connection with such proceedings or
collection of the Note.

 

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11.        Miscellaneous.

 

a.        This
Note shall be binding upon Maker and shall inure to the benefit of Holder and its successors, assigns, heirs, and legal representatives.

 

b.        Any
failure or delay by Holder to insist upon the strict performance of any term, condition, covenant or agreement of this Note, or
to exercise any right, power or remedy hereunder shall not constitute a waiver of any such term, condition, covenant, agreement,
right, power or remedy.

 

c.        Any
provision of this Note that is unenforceable shall be severed from this Note to the extent reasonably possible without invalidating
or affecting the intent, validity or enforceability of any other provision of this Note.

 

d.        This
Note may not be modified or amended in any respect except in a writing executed by the party to be charged.

 

e.        Time
is of the essence.

 

12.       Notices.
All notices required to be given under this Note shall be given as follows or at such other address as a party may designate by
written notice to the other parties:

 

To Maker:

 

	 	Amarantus Bioscience Holdings, Inc.	 
	 	Attn: Gerald Commissiong	 
	 	655 Montgomery St	 
	 	San Francisco, CA 94111	 

 

To Holder:

 

	 	Dominick
& Dickerman, LLC	 
	 	570 Lexington Ave	 
	 	42nd Floor	 
	 	New York, NY 10022	 

 

Notices may be transmitted by facsimile,
certified mail, private delivery, or any other commercially reasonable means, and shall be deemed given upon receipt by the Party
to whom they are addressed.

 

13.       Waiver
of Certain Formalities. All parties to this Note hereby waive presentment, dishonor,
notice of dishonor and protest. All parties hereto consent to, and Holder is hereby expressly authorized to make, without notice,
any and all renewals, extensions, modifications or waivers of the time for or the terms of payment of any sum or sums due hereunder,
or under any documents or instruments relating to or securing this Note, or of the performance of any covenants, conditions or
agreements hereof or thereof. Any such action taken by Holder shall not discharge the liability of any party to this Note.

 

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IN WITNESS WHEREOF, this Note has been executed
effective the date and place first written above.

 

	Amarantus Bioscience Holdings Inc. “Maker”:	 
	 	 	 
	By: 	        	 
	 	 	 
	Its: 	 	 

 

	Print Name:	 	 

 

	Date: 	        	 
	 	 	 
	Dominick & Dickerman, LLC “Holder”:	 
	 	 	 
	By: 	            	 
	 	 	 
	Its: 	 	 

 

	Print Name:	 	 

 

	Date:	 	 

 

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EXHIBIT 1

 

CONVERSION NOTICE

 

 

(To be executed by the Holder in order to Convert the
Note)

 

TO:

  

The undersigned hereby irrevocably elects to convert
US$______________ of the Principal Amount of the above Note into Shares of Common Stock of Amarantus BioScience Holdings, Inc.,
according to the conditions stated therein, as of the Conversion Date written below. If shares are to be issued in the name of
a person other than the undersigned, the undersigned will pay all transfer taxes payable with respect thereto and is delivering
herewith such certificates and opinions as reasonably requested by the Maker in accordance therewith. No fee will be charged to
the Holder for any conversion, except for such transfer taxes, if any.

 

Conversion Date: ___________________________________________

 

Applicable Conversion Price: $____________

  

	Signature:	 	 
	 	 	 
	Name:	 	 
	 	 	 
	Address:	 	 
	 	 	 
	 	 	 
	 	 	 
	Tax I.D. or Soc. Sec. No:	 	 

 

Principal Amount to be converted:

US$________________________________________

 

Amount of Note unconverted:

US$________________________________________

 

Number of shares of Common Stock to be issued: ________________________

 

Page 7 of 7Exhibit 10.2

 

Amendment
to Purchase Agreement

ACQUSITION OF DYNAMAC’S PROPRIETARY LINE OF

RF AND MICROWAVE TEST & MEASUREMENT
PRODUCTS

  

This
Amendment to Purchase Agreement (this “Amendment”) is entered into as of November 2, 2016 by and among Microphase
Instruments, LLC, a Delaware limited liability company with offices at 100 Trap Falls Road Extension, Suite 400, Shelton, CT 06484
(the “Purchaser”), Dynamac, Inc., an Illinois corporation with offices at 1229 Capitol Drive, Addison, IL 60101(the
“Seller”) and Microphase Corporation, a Connecticut corporation with offices at 100 Trap Falls Road Extension, Suite
400, Shelton, CT 06484 (“Parent”). The Purchaser, the Seller and Parent are also each hereinafter referred to individually
as “a Party” and together as “the Parties”.

 

RECITALS

 

WHEREAS, the Purchaser
and the Seller entered into that certain purchase agreement dated as of January 21, 2016, pursuant to which the Purchaser agreed
to purchase and the Seller agreed to sell, for good and valuable consideration, Dynamac’s entire line of proprietary radio
frequency (“RF”) and microwave test and measurement products, all associated accessories, all housings, cases and packaging
designs and materials and all intellectual property rights (the “Original Agreement”);

 

WHEREAS, Purchaser
is a subsidiary of Parent;

 

WHEREAS, the Parties
desire to amend the Original Agreement to revise the terms of the Purchaser’s payment to Seller, among other things;

 

WHEREAS, the Parties
desire that, as of the date hereof, each and every other agreement or understanding, oral or written, between the Parties relating
to the purchase, acquisition, strategic partnership, or joint venture involving test & measurement products of the Seller is
hereby amended and superseded with this Agreement.

  

NOW THEREFORE, for
good and valuable consideration, the receipt of which is hereby acknowledged, the Parties hereby agree as follows:

 

		1.	Closing Date. The Closing of the transaction contemplated in this Agreement (the “Closing”)
is to take place contemporaneously with the first to occur of (i) delivery of the Offering Payment (defined below) or (ii) the
final Installment Payment (defined below).

 

		2.	Amendments. The Original Agreement shall be amended as follows:

 

		a.	References to this “Agreement” shall mean the Original Agreement as amended by this
Amendment.

 

     

     

    

 

		b.	Section 1(a) of the Original Agreement shall be modified as follows:

 

“Subject to the terms and
conditions set forth herein, after payment in full of all amounts due to the Seller under this Agreement, the Seller shall sell,
assign, transfer, convey and deliver to the Purchaser, and the Purchaser shall purchase from the Seller, free and clear of any
Encumbrances, all of the Seller’s right, title and interest in, to and under the Assets as defined in this Agreement. The
Seller shall not transfer or assign to the Purchaser, and the Purchaser shall not accept, any liabilities and obligations arising
from or relating to Assets and all such obligations and liabilities shall remain with the Seller.”

 

		c.	A Section 1(e) shall be added with the following:

 

“Payment in the amount of
$559,000 shall be due and payable on November 22, 2016, in satisfaction of the $550,000 payment originally due on August 22, 2016,
together with a total of $9,000 in late fees.”

 

		d.	A Section 1(f) shall be added with the following:

 

“As additional consideration
for the Seller’s agreement to further extend the payment due on August 22, 2016 until November 22, 2016, Parent will issue
to the Seller 300,000 shares of restricted common stock of Parent within 5 days from the execution of this Agreement. Such stock
will be issued in the form of six certificates for 50,000 shares each.”

 

		e.	Section 1(d) shall be amended by deleting “$2,000,000” and replacing it with “$1,500,000.”

 

		f.	Section 1(d)(i) shall be deleted in its entirety and replaced with the following:

 

“The remaining balance due
of $1,500,000 shall be due and payable to the Seller within 10 days of the closing of an initial public offering (“IPO”)
of common stock of Parent (the “Offering Payment”). If the IPO is delayed or does not close, Parent shall continue
to make the payments according to the payment schedule outlined in Section 1(d)(ii) below.”

 

		g.	Section 1(d)(ii) shall be amended by deleting:

	$550,000	August 22, 2016

 

		h.	Section 3(a) shall be deleted in its entirety and replaced with the following:

“If the Purchaser fails to
make payments as set forth in this agreement, the Purchaser shall be considered in continued default (“Continued Default”).

 

		i.	Section 3(b) shall be deleted and replaced with the following:

 

     

     

    

 

“Upon a Continued Default,
the Seller in order to protect its interests, shall provide a written “Foreclosure Notice” to the Purchaser.

 

		j.	Section 3(e) shall be deleted in its entirety.

 

		k.	Section 5(a) shall be deleted in its entirety and replaced with the following:

 

“The Closing of the transaction
contemplated in this Agreement (the “Closing”) is to take place contemporaneously with the first to occur of delivery
of the Offering Payment or the final installment payment due and payable pursuant to Section 1(d)(i) hereof.”

 

		l.	Section 5(b) shall be deleted in its entirety.

 

		3.	Further Assurances. Following the execution and delivery hereof, each of the parties hereto
shall, and shall cause their respective Affiliates to, execute and deliver such additional documents, instruments, conveyances
and assurances and take such further actions as may be reasonably required to carry out the provisions hereof and give effect to
the transactions contemplated by this Amendment.

 

		4.	Governing Law; Jurisdiction. This Agreement shall be governed by and construed in accordance
with the internal laws of the State of Connecticut without giving effect to any choice or conflict of law provision or rule (whether
of the State of Connecticut or any other jurisdiction). Any legal proceeding arising out of or based upon this Agreement shall
be instituted in the federal courts or the courts of the state of Connecticut in each case located in Fairfield County, and each
party irrevocably submits to the exclusive jurisdiction of such courts in any such proceeding.

 

		5.	Counterparts. This Agreement may be executed in several counterparts, each of which shall
be deemed to be an original copy and all of which together shall constitute one agreement binding on all parties hereto, notwithstanding
that all the parties shall not have signed the same counterpart.

 

     

     

    

 

IN WITNESS WHEREOF,
each of the undersigned hereby (a) executes this Agreement; (b) confirms its agreement with the provisions and covenants herein
provided; and (c) agrees to be bound by this Agreement. 

 

	SELLER	 	PURCHASER	 
	 	 	 	 	 
	DYNAMAC, INC.	 	MICROPHASE INSTRUMENTS, LLC	 
	 	 	 	 	 	 
	By:	/s/ Kent Higgins	 	By:	/s/ Michael Ghadaksaz	 
	 	 	 	 	 	 
	Name:	Kent Higgins	 	Name:	Michael Ghadaksaz	 
	Title:	President	 	Title:	Manager	 
	 	 	 	 	 	 
	PARENT	 	 	 
	 	 	 	 	 
	MICROPHASE CORPORATION.	 	 	 
	 	 	 	 	 	 
	 	 	 	 	 	 
	By:	/s/ Necdet Ergul	 	 	 	 
	 	 	 	 	 	 
	Name:	 Necdet Ergul	 	 	 	 
	Title:	Chief Executive Officer

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