Document:

<PAGE>

Ex-10.43
Form of Warrant issued by the Company to Mark Weber dated July 1, 2000

                                  EXHIBIT 10.43

THE SECURITIES REPRESENTED HEREBY HAVE NOT BEEN REGISTERED UNDER THE SECURITIES
ACT OF 1933, AS AMENDED (THE "ACT") OR STATE SECURITIES OR BLUE SKY LAWS AND MAY
NOT BE OFFERED FOR SALE, SOLD OR OTHERWISE TRANSFERRED OR ASSIGNED FOR VALUE,
DIRECTLY OR INDIRECTLY, NOR MAY THE SECURITIES BE TRANSFERRED ON THE BOOKS OF
THE CORPORATION, WITHOUT REGISTRATION OF SUCH SECURITIES OR AN EXEMPTION FROM
SUCH REGISTRATION UNDER APPLICABLE STATE SECURITIES OR BLUE SKY LAWS.

                               TELEGEN CORPORATION

                         COMMON STOCK PURCHASE WARRANT

                             VOID AFTER JULY 1, 2003

1.      NUMBER AND PRICE OF SHARES SUBJECT TO WARRANT. Subject to the terms and
        conditions set forth herein, Mark Weber is entitled to purchase from
        TELEGEN CORPORATION, a California corporation (the "Company"), at any
        time after July 1, 2000, from the date of issuance hereof and on or
        before the date of termination of this Warrant provided for in Section 2
        hereof, up to 125,000 shares of fully paid and non-assessable Common
        Stock of the Company (the "Warrant Stock"), for a per-share purchase
        price of $1.75 (the "Warrant Price"). This Warrant is issued as
        consideration for the performance of services pursuant to an agreement
        between the Company and the holder hereof.

2.      TERMINATION. This Warrant (and the right to purchase securities upon
        exercise hereof) shall terminate upon the earliest of (i) THREE (3)
        years from the date of issuance hereof; or (ii) the closing of an
        acquisition of all or substantially all of the assets or capital stock
        of the Company by another entity for cash. The Company shall give the
        holder of this Warrant written notice of such sale, merger or
        consolidation at least TWENTY (20) and no more than NINETY (90) days
        prior to the closing of any such sale, merger or consolidation.

3.      NO ADJUSTMENTS. No adjustment on account of dividends or interest on
        Warrant Stock will be made upon the exercise hereof.

4.      NO FRACTIONAL SHARES. No fractional shares of Warrant Stock will be
        issued in connection with any subscription hereunder. In lieu of any
        fractional shares which would otherwise be issuable, the Company shall
        pay cash equal to the product of such fraction multiplied by the fair
        market value of one share of Warrant Stock on the date of exercise, as
        determined in good faith by the Company's Board of Directors.

5.      NO STOCKHOLDER. This Warrant shall not entitle its holder to any of the
        rights of a shareholder of the Company.

6.      RESERVATION OF STOCK. The Company covenants that during the period this
        Warrant is exercisable, the Company will reserve from its authorized and
        unissued Common Stock a sufficient number of shares to provide for the
        issuance of Warrant Stock upon the exercise of this Warrant. The Company
        agrees that its issuance of this Warrant shall constitute full authority
        to its officers who are charged with the duty of executing stock
        certificates to execute and issue the necessary certificates for shares
        of Warrant Stock upon the exercise of this Warrant.

                                      -1-
<PAGE>

7.      PROCEDURE FOR EXERCISE OF WARRANT. This Warrant may be exercised by the
        registered holder or its registered assigns, in whole or in part, by the
        surrender of this Warrant at the principal office of the Company,
        accompanied by payment in full of the Warrant Price in cash or by check.
        Upon partial exercise hereof, a new warrant or warrants containing the
        same date and provisions as this Warrant shall be issued by the Company
        to the registered holder for the number of shares of Warrant Stock with
        respect to which this Warrant shall not have been exercised. A Warrant
        shall be deemed to have been exercised immediately prior to the close of
        business on the date of its surrender for exercise as provided above,
        and the person entitled to receive the shares of Warrant Stock issuable
        upon such exercise shall be treated for all purposes as the holder of
        such shares of record as of the close of business on such date. As
        promptly as practicable on or after such date, the Company shall issue
        and deliver to the person or persons entitled to receive the same a
        certificate or certificates for the number of full shares of Warrant
        Stock issuable upon such exercise, together with cash in lieu of any
        fraction of a share as provided above.

8.      ADJUSTMENT OF WARRANT PRICE AND NUMBER OF SHARES. The number and kind of
        securities issuable upon the exercise of this Warrant shall be subject
        to adjustment from time to time and the Company agrees to provide notice
        upon the happening of certain events as follows:

(a)     ADJUSTMENT FOR RECLASSIFICATION OR REORGANIZATION. In case of any
        reclassification or change of the outstanding Common Stock of the
        Company or of any reorganization of the Company during the term of this
        Warrant (other than a merger of the Company with and into another
        corporation), then and in each such case the Company shall give the
        holder of this Warrant at least TWENTY (20) days notice of the proposed
        effective date of such transaction, and the holder of this Warrant, upon
        the exercise hereof at any time after the consummation of such
        reclassification, change or reorganization, shall be entitled to
        receive, in lieu of the Warrant Stock receivable upon the exercise
        hereof prior to such consummation, the stock or other securities or
        property to which such holder would have been entitled upon such
        consummation if such holder had exercised this Warrant immediately prior
        thereto, all subject to further adjustment as provided in this Section
        8. The terms of this Section 8 shall similarly apply to successive
        reclassifications, changes or reorganizations.

(b)     STOCK SPLITS AND REVERSE STOCK SPLITS. If at any time during the term of
        this Warrant the Company shall subdivide its outstanding shares of
        Common Stock into a greater number of shares, the Warrant Price in
        effect immediately prior to such subdivision shall thereby be
        proportionately reduced and the number of shares receivable upon
        exercise of the Warrant shall thereby be proportionately increased; and,
        conversely, if at any time on or after the date hereof the outstanding
        number of shares of Common Stock shall be combined into a smaller number
        of shares, the Warrant Price in effect immediately prior to such
        combination shall thereby be proportionately increased and the number of
        shares receivable upon exercise of this Warrant shall thereby be
        proportionately decreased.

9.      CERTIFICATE OF ADJUSTMENT. Whenever the Warrant Price or the number or
        type of securities issuable upon exercise of this Warrant is adjusted,
        as herein provided, the Company shall promptly deliver to the record
        holder of this Warrant a certificate of an officer of the Company
        setting forth the nature of such adjustment and a brief statement of the
        facts requiring such adjustment.

10.     NO DILUTION OR IMPAIRMENT. The Company covenants that it shall not, by
        amendment of its Articles of Incorporation or through any
        reorganization, consolidation, merger, transfer of assets, dissolution,
        issue or sale of securities or any other voluntary action, avoid or seek
        to avoid the observance or performance of any of the terms of this
        Warrant, but shall at all times in good faith assist in carrying out all
        those terms and in taking all actions necessary or appropriate to
        protect the rights of the holder of this Warrant against dilution or
        other impairment. Without limiting the generality of the above
        provision, the Company will take all necessary or appropriate action in
        order that the Company may validly and legally issue fully paid and
        nonassessable shares upon the exercise of this Warrant.

11.     TRANSFER OF WARRANT. This Warrant may not be transferred or assigned
        without the consent of the Company. The Warrant Stock may not be
        transferred or assigned, in whole or in part, by the holder hereof
        without

                                      -2-
<PAGE>

        compliance with applicable federal and state securities laws. The rights
        and obligations of the Company and the holders of this Warrant shall be
        binding upon and benefit the successors, assignors, heirs,
        administrators and transferees of the parties. Any transferee hereof
        agrees to be bound by the restrictions set forth herein.

12.     COMPLIANCE WITH SECURITIES LAWS.

(a)     The holder represents and agrees that this Warrant (and the Warrant
        Stock, if the Warrant is exercised), are purchased only for investment,
        for the holder's own account, and without any present intention to sell
        or distribute the Warrant or the Warrant Stock.

(b)     The holder of this Warrant acknowledges and agrees that this Warrant and
        the Warrant Stock issuable upon exercise of the Warrant and the shares
        of Common Stock issuable upon conversion of the Warrant (the
        "Securities") have not been registered under the Securities Act and
        accordingly will not be transferable except as permitted under the
        various exemptions contained in the Securities Act, or upon satisfaction
        of the registration requirements of the Securities Act. Therefore, the
        Securities must be held pursuant to Rule 144 of the Securities Act
        unless they are subsequently registered under the Securities Act or an
        exemption from such registration is available. Holder understands that
        the certificate evidencing the Securities will be imprinted with a
        legend which prohibits the transfer of the Securities unless they are
        registered or unless the Company receives an opinion of counsel
        reasonably satisfactory to the Company that such registration is not
        required. Holder is aware of the provisions of Rule 144 under the
        Securities Act. Holder understands that a stop transfer instruction will
        be in effect with respect to transfer of Securities consistent with the
        requirements of the securities laws.

13.     MISCELLANEOUS. This Warrant shall be governed by the laws of the State
        of California. The headings in this Warrant are for purposes of
        convenience and reference only, and shall not be deemed to constitute a
        part hereof. Neither this Warrant nor any term hereof may be changed,
        waived, discharged or terminated orally but only by an instrument in
        writing signed by the Company and the registered holder hereof. All
        notices and other communications from the Company to the holder of this
        Warrant shall be mailed by first-class registered or certified mail,
        postage prepaid, to the address furnished to the Company in writing by
        the last holder of this Warrant who shall have furnished an address to
        the Company in writing.

        ISSUED this 1st day of July 2000.
        TELEGEN CORPORATION

        By:

        /s/ JESSICA L. STEVENS

        Jessica L. Stevens
        President/CEO

                                      -3-<PAGE>

Ex-10.44
Regulation S Securities Purchase Agreement by and between
the Company and certain foreign investors

                                  EXHIBIT 10.44

                   REGULATION S SECURITIES PURCHASE AGREEMENT

        This Regulation S Securities Purchase Agreement (the "Agreement") is
entered into as of the date set forth below by and between the person whose name
is set forth on the signature page hereof (referred to herein as the "Investor")
and Telegen Corporation, a California corporation, (the "Company") whose address
is 1840 Gateway Drive, Suite 200, San Mateo, California 94404, in connection
with the purchase by Investor of the number of shares of common stock, no par
value, (the "Shares") of the Company set forth opposite the Investor's name on
the signature page of this Agreement. Up to 500,000 Shares of common stock of
the Company are being offered hereby to the Investor and other persons.

        The offer and sale of the Shares is being made in compliance with and in
reliance upon the provisions of Regulation S ("Regulation S") under the United
States Securities Act of 1933, as amended (the "Act"). The Company has retained
the services of Pacific West Securities, Inc. ("Pac West") as its agent to
assist the Company in this offering. Pac West is a "distributor" as that term is
defined in Regulation S.

        NOW THEREFORE, in consideration of the representations, warranties and
covenants contained herein and for other good and valuable consideration the
parties hereto agree as follows:

1.      ISSUANCE AND SALE OF THE SHARES.

        1.1     The Company hereby agrees to sell to the Investor and the
Investor agrees to purchase from the Company the number of Shares set forth on
the signature page of this Agreement (the "Signature Page") at the aggregate
purchase price (the "Purchase Price") also set forth on the Signature Page. The
Investor has previously agreed to purchase the Shares, has executed a
Subscription Agreement with respect thereto and has paid the Purchase Price. The
Purchase Price has been deposited in an escrow account maintained at Preferred
Bank, Los Angeles, California. The Purchase Price will not be released to the
Company and the purchase of the Shares will not be consummated until (1) the
confirmation of the Company's Plan of Reorganization ("Plan of Reorganization")
as filed with the U.S. Bankruptcy Court for the Northern District of California
(the "Court") on April 21, 2000 in the case entitled In Re Telegen Corporation
(Case No. 98-34876-DM-11) and (2) a registration statement covering all of the
Shares sold under this Agreement has been declared effective by the Securities
and Exchange Commission. The purpose of the Agreement is to ratify and confirm
the purchase of the Shares by the Investor on the terms and conditions set forth
herein and to restate and reconfirm the representations and warranties
previously made by the Company and the Investor.

        1.2     ADVISOR. The Investor hereby acknowledges that the Company has
retained the services of Pac West in connection with the offer and sale of the
Shares and that for its services in connection therewith Pac West will be paid
fees as set forth in the Disclosure Documents.

2.      REPRESENTATIONS AND WARRANTIES OF THE COMPANY. The Company hereby
        represents and warrants to the Investor as follows:

        2.1     BUSINESS OF THE COMPANY. The Company is a development stage
company which is engaged in the business described in the Private Placement
Memorandum of the Company dated March 30, 2000 and the Plan of Reorganization
filed April 21, 2000.

        The documents referred to in the previous paragraph (collectively the
"Disclosure Documents")

                                       1
<PAGE>

contain a complete description of the business of the Company, the management of
the Company, including compensation, the principal shareholders of the Company
and risk factors involved in the purchase of Shares.

        2.2     ORGANIZATION, QUALIFICATIONS AND CORPORATE POWER. The Company is
duly incorporated, validly existing and in good standing under the laws of the
state of California and has all requisite corporate power and authority to own,
operate and lease its properties and to carry on its business as the same is now
being conducted. The Company is duly qualified to do business as a foreign
corporation and is in good standing in each jurisdiction in which the character
of its properties or the nature of its activities make such qualification
necessary except where the failure to be so qualified and in good standing would
not have a material adverse effect on its business, operations or financial
condition. The Company has the requisite corporate power and authority to
execute, deliver and perform this Agreement and to sell, issue and deliver the
Shares.

        2.3     AUTHORIZATION OF AGREEMENT.

                (a)     The execution and delivery by the Company of this
Agreement, the performance of its obligations hereunder and the sale, issuance
and delivery of the Shares will, upon confirmation of the Plan of Reorganization
be duly authorized or ratified by all requisite corporate action of the Company
and will not violate any provision of United States law, any order of any court
or other agency of government, the Company's Articles of Incorporation or Bylaws
or any provision of any indenture, agreement or other instrument to which the
Company or any of its properties or assets is bound, or conflict with, result in
a breach of or constitute (with due notice or lapse of time or both) a default
under any such indenture, agreement or other instrument or result in the
creation or imposition of any lien, charge, restriction, claim or encumbrance of
any nature whatsoever upon any of the properties or assets of the Company.

                (b)     The Shares have been duly authorized and, when paid for
and issued in accordance with this Agreement and the Plan of Reorganization upon
its confirmation by the Court, will be validly issued, fully paid and
nonassessable shares of common stock of the Company free and clear of all liens,
charges, restrictions, claims and encumbrances imposed by or through the Company
and not subject to any pre-emptive right of stockholders of the Company or to
any right in favor of any person.

        2.4     VALIDITY. This Agreement has been executed and delivered by the
Company, subject to confirmation by the Court of the Plan of Reorganization and
constitutes the legal, valid and binding obligation of the Company enforceable
in accordance with its terms except as enforceability may be limited by
applicable bankruptcy, insolvency, reorganization, moratorium or similar laws
affecting creditors' rights generally and subject to general principles of
equity. No approval, consent, authorization, order of or filing with any court
or governmental authority is required in connection with the sale of the Shares
to the Investor except for confirmation of the Plan of Reorganization by the
Court, registration of the Shares under the Act and as may be required under the
Act and the jurisdictions in which the Shares are offered and sold.

3.      REPRESENTATIONS AND WARRANTIES OF THE INVESTOR. The Investor, knowing
        that the Company will rely thereon, represents to the Company that:

        3.1     RISK FACTORS. The Investor understands that the Shares offered
hereby are highly speculative and involve a high degree of risk. The Investor
acknowledges that he or she has carefully reviewed and considered, along with
other matters referred to herein, the risk factors set forth herein and in the
Disclosure Materials delivered to the Investor.

        3.2     OFFSHORE TRANSACTION. The Investor represents and warrants to
the Company that:

                (a)     the Investor is not a U.S. Person as that term is
defined in Rule 902(o) of Regulation S and is a resident of the jurisdiction set
forth on the Signature Page;

                (b)     the Shares were not offered to the Investor in the
United States;

                                       2
<PAGE>

                (c)     at the time of the execution of this Agreement and the
time of any offer to the Investor to purchase the Shares hereunder, the Investor
was physically outside the United States;

                (d)     the Investor is purchasing the Shares for his or her own
account and not on behalf of or for the benefit of any U.S. Person and the sale
and resale of the Shares have not been prearranged with any U.S. Person or buyer
in the United States; and

                (e)     the Investor is not an underwriter, dealer, distributor
or other person who is participating, pursuant to a contractual arrangement, in
the distribution of the Shares offered or sold in reliance on Regulation S.

        3.3     INDEPENDENT INVESTIGATION. The Investor in subscribing for the
Shares hereunder has relied solely upon an independent investigation made by the
Investor or his or her representatives, if any, and has, prior to the date
hereof been given access to and the opportunity to speak with and ask questions
of representatives of the Company and to examine all books, records and all
material contracts and documents of the Company. In making his or her investment
decision to purchase the Shares the Investor is not relying on any oral or
written representations or assurances from the Company or any other person other
than as set forth in this Agreement.

        3.4     ECONOMIC RISK. The Investor understands and acknowledges that an
investment in the Shares involves a high degree of risk, including, without
limitation, limitations on the liquidity of the Shares and the Investor is
willing the accept such investment risks. The Investor represents that the
Investor is able to bear the economic risk of an investment in the Shares
including a possible total loss of his or her investment. In making this
statement the Investor hereby represents and warrants to the Company that the
Investor has adequate means of providing for the Investor's current needs and
contingencies, can afford to hold the Shares for an indefinite period, and as of
the date of signing this Agreement has no present need for liquidity of the
Shares.

        3.5     NO GOVERNMENT RECOMMENDATION OR APPROVAL. The Investor
understands that no United States federal or state agency or similar agency of
any other country has reviewed, approved, passed upon or made any recommendation
or endorsement of the Company or the subscription for the Shares.

        3.6     NO DIRECTED SELLING EFFORTS IN REGARD TO THIS TRANSACTION. To
the knowledge of the Investor, without any independent investigation, neither
the Company nor any person acting for the Company has conducted any "directed
selling efforts" in the United States as such term is defined in Rule 902(b) of
Regulation S, which in general, means any activity taken for the purpose of, or
that could reasonably be expected to have the effect of, conditioning the market
in the United States for any of the Shares being offered in reliance on
Regulation S. Such activity includes, without limitation, the mailing of printed
material to Investors residing in the United States, the holding of promotional
seminars in the United States, and the placement of advertisements with radio or
television stations broadcasting in the United States or in publications for the
general circulation in the United States that refer to the offering of the
Shares in reliance on Regulation S.

        3.7     COMPANY'S RELIANCE ON REPRESENTATIONS OF THE INVESTOR. The
Investor understands that the Shares are being offered and sold to him or her in
reliance upon specific exemptions from the registration requirements of U.S.
securities laws and that the Company is relying upon the truth and accuracy of
the representations, warranties, agreements, acknowledgements and understandings
of the Investor set forth herein in order to determine the applicability of such
exemptions and the suitability of the Investor to acquire the Shares.

        3.8     SHARES REGISTERED UNDER THE ACT. The Investor understands that
the Shares will be registered under the Act within 180 days following
confirmation of the Plan of Reorganization.

        3.9     NO PUBLIC SOLICITATION. The Investor knows of no public
solicitation or advertisement of an offer in connection with the proposed
issuance and sale of the Shares.

        3.10    INVESTMENT INTENT. The Investor is acquiring the Shares for his
or her own account (or a trust account

                                       3
<PAGE>

if such Investor is a trustee) for investment and not as a nominee or with a
view to the resale or distribution thereof. The Investor represents and warrants
to the Company, as of the date of this Agreement, that the Investor has no
present plan or intention to sell the Shares in the United States at any
predetermined time and has made no predetermined arrangements to sell the
Shares.

        3.11    INVESTOR NOT TO SELL OR TRANSFER SHARES IN VIOLATION OF THE
SECURITIES LAWS. The Investor covenants that he, she or it will not knowingly
make any sale, transfer or other disposition of the Shares in violation of the
Act (including Regulation S), the Exchange Act, any applicable State Acts or the
rules and regulations of the Securities and Exchange Commission or of any state
securities commissions or similar state authorities promulgated under any of the
foregoing.

        3.12    INVESTOR'S POWER AND AUTHORITY. The Investor has the full power
and authority to execute, deliver and perform this Agreement. This Agreement
when executed and delivered by the Investor will constitute a valid and legally
binding obligation of the Investor enforceable in accordance with its terms.

        3.13    NO TAX ADVICE FROM COMPANY OR ITS AGENTS. The Investor has had
an opportunity to review the foreign, U.S. federal, state and local tax
consequences of this investment (and the transactions contemplated by this
Agreement) with his, her or its own tax advisor. The Investor is relying solely
on such advisors and not on any statements or representations of the Company or
any of its agents and understands that the Investor (and not the Company) shall
be responsible for the Investor's own tax liability that may arise as a result
of this investment or the transactions contemplated by this Agreement.

        3.14    NO LEGAL ADVICE FROM COMPANY OR ITS AGENTS. The Investor
acknowledges that he, she or it has had the opportunity to review this Agreement
(and the transactions contemplated by this Agreement) with his, her or its own
legal counsel. The Investor in relying solely on such counsel and not on any
statements or representations of the Company or any of its agents for legal
advice with respect to this investment or the transactions contemplated by this
Agreement except for the representations, warranties and covenants as set forth
herein.

        3.15    NO SHORT SALES OR HEDGING TRANSACTIONS DURING THE DISTRIBUTION
COMPLIANCE PERIOD (AS DEFINED IN REGULATION S). Neither the Investor nor any of
his, her or its affiliates will, directly or indirectly hold or maintain any
short position in or engage in hedging transactions with respect to the common
stock of the Company or any other securities of the Company.

4.      INDEMNIFICATION

        4.1     INDEMNITY OF INVESTOR. The Investor agrees to indemnify and hold
harmless the Company and its officers and directors from any and all losses
which arise as a result of (a) the inaccuracy or breach of any representation or
warranty made herein by such Investor, or (b) any breach or failure of the
Investor to perform any of the covenants or agreements set forth herein.

        4.2     INDEMNIFICATION PROCEDURE. Any indemnified party shall not be
liable under this indemnity agreement with respect to any claim made against an
indemnified party unless such indemnifying party shall be notified in writing of
the nature of the claim within a reasonable time after the assertion thereof.
The failure to so notify such indemnifying party shall not relieve it from any
liability which it may have otherwise then on account of this indemnity
agreement. An indemnifying party shall be entitled to participate at its own
expense in the defense of such claim or if it so elects within a reasonable time
after receipt such notice to assume the defense of such claim which defense
shall be conducted by counsel chosen by it and reasonably satisfactory to the
indemnified party, defendant or defendants in any suit so brought; provided,
however, the indemnifying party shall not be entitled to assume the defense of
such claim if such indemnified party reasonably objects to such assumption on
the ground that there may be legal defenses available to such indemnified party
different from or in addition to those available to such indemnifying party. In
the event that the indemnifying party elects to assume the defense of any such
suit and retains such counsel the indemnified party defendant or defendants
shall bear the fees and expenses of any additional counsel thereafter retained
by such indemnified party. However, in the event that the parties to any such
action (including impleaded parties) include the

                                       4
<PAGE>

Company or controlling persons thereof and the Investor and representation of
all parties would be inappropriate due to actual or potential differing
interests among them, then the Investor shall have the right to obtain separate
counsel and the Company shall reimburse the Investor for the reasonable fees and
expenses of such counsel.

5.      MISCELLANEOUS

        5.1     SURVIVAL OF AGREEMENTS. All covenants, agreements,
representations and warranties made herein shall survive the execution and
delivery hereof.

        5.2     PARTIES IN INTEREST. All representations, covenants and
agreements contained in this Agreement by or on behalf of any of the parties
hereto shall bind and inure to the benefit of the respective heirs, executors,
administrators, successors and assigns of the parties hereto. Except as
otherwise expressly provided herein, nothing in this Agreement is intended to
confer upon any other person any rights or remedies hereunder.

        5.3     NOTICES. All notices, requests, consents and other
communications hereunder shall be in writing and shall be delivered in person,
mailed by certified or registered mail, return receipt requested, or telexed or
faxed to the addresses or telephone numbers set forth on the Signature Page.

        5.4     GOVERNING LAW. This Agreement shall be governed by and construed
in accordance with the laws of the state of California.

        5.5     ENTIRE AGREEMENT. This Agreement constitutes the sole and entire
agreement of the parties with respect to the subject matter hereof.

        5.6     COUNTERPARTS. This Agreement may be executed in counterparts,
each of which shall be deemed an original, but taken together shall constitute
one and the same instrument.

        5.7     AMENDMENTS. This Agreement may be amended or modified, or any
provision hereof may be waived, only pursuant to a written instrument executed
by all of the parties hereto.

        5.8     SEVERABILITY. If any provision of this Agreement shall be
declared void or unenforceable by a judicial or administrative authority, the
validity of any other provision and of the entire Agreement shall not be
affected thereby.

IN WITNESS WHEREOF, the parties have executed this Agreement this     day of
                  , 2000.                                         ---
------------------
<TABLE>

<S>                                            <C>
Investor:  (if an individual)                    Investor (other than an individual investing for his own account)

------------------------------------             ------------------------------------
(Signature)                                      (Printed name of Investor)

------------------------------------
(Printed name of Investor)

                                               By:
------------------------------------             -----------------------------------
(Signature of joint holder, if applicable)       (Signature of authorized officer or other representative)

------------------------------------             ------------------------------------
(Printed name of joint holder, if applicable)    (Printed name and title of signatory)

</TABLE>

                                       5

<PAGE>

<TABLE>

<S>                                            <C>
Investor's Permanent Address:                  Investor's Telephone Number, including country code:

------------------------------------           ------------------------------------

------------------------------------

Investor's country of citizenship:             Investor's fax number, including country code:

------------------------------------           ------------------------------------

If this agreement is being executed
other than in the jurisdiction set forth
above, indicate such location:

------------------------------------

Number of Purchased Shares:

------------------------------------            TELEGEN CORPORATION

Total Purchase Price:

------------------------------------            By:
                                                   --------------------------------
</TABLE>

                                       6

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