<PAGE>
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 13D
Under the Securities Exchange Act of 1934
(Amendment No. 8)
HYTEK MICROSYSTEMS, INC.
(Name of Issuer)
Common Stock, no par value
(Title of Class of Securities)
0004491801
(CUSIP Number)
Gaetano J. Casillo
Allen & Company Incorporated
711 Fifth Avenue, New York, New York 10022, (212) 830-8300
(Name, Address and Telephone Number of Person Authorized
to Receive Notices and Communications)
July 15, 1998
(Date of Event which Requires Filing of this Statement)
If the filing person has previously filed a statement on Schedule 13G to
report the acquisition which is the subject of this Schedule 13D, and is
filing this schedule because of Section 240. 13d-1(e), 240.13d-1)(f) or
240.13d-1(g), check the following box [ ].
Note: Schedules filed in paper format shall include a signed original and five
copies of the Schedule, including all exhibits. See 240.13d-7(b) for other
parties to whom copies are to be sent.
* The remainder of this cover page shall be filled out for a reporting
person's initial filing on this form with respect to the subject class of
securities, and for any subsequent amendment containing information which
would alter disclosures provided in a prior cover page.
The information required on the remainder of this cover page shall not be
deemed to be "filed" for the purposes of Section 18 of the Securities Exchange
Act of 1934 ("Act") or otherwise subject to the liabilities of that section of
the Act but shall be subject to all other provisions of the Act (however, see
the Notes).
Page 1 of 6 Pages
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<PAGE>
SCHEDULE 13D
- ---------------------- ------------------
CUSIP No. 0004491801 Page 2 of 6 pages
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1 NAME OF REPORTING PERSON - S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE
PERSON
Allen Holding Inc. - 13-3311050
- -----------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ]
(b) [x]
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3 SEC USE ONLY
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4 SOURCE OF FUNDS*
Not Applicable
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5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
PURSUANT TO ITEMS 2(d) or 2(E) [ ]
- -----------------------------------------------------------------------------
6 CITIZENSHIP OR PLACE OF ORGANIZATION
Delaware
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NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH
- -----------------------------------------------------------------------------
7 SOLE VOTING POWER
0
- -----------------------------------------------------------------------------
8 SHARED VOTING POWER
0
- -----------------------------------------------------------------------------
9 SOLE DISPOSITIVE POWER
0
- -----------------------------------------------------------------------------
10 SHARED DISPOSITIVE POWER
0
- -----------------------------------------------------------------------------
11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
360,000
- -----------------------------------------------------------------------------
12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
CERTAIN SHARES* [ ]
- -----------------------------------------------------------------------------
13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
12.06%
- -----------------------------------------------------------------------------
14 TYPE OF REPORTING PERSON*
HC
==============================================================================
*SEE INSTRUCTIONS BELOW BEFORE FILLING OUT!
SEC 1746 (9-88)<PAGE>
<PAGE>
SCHEDULE 13D
- --------------------- ------------------
CUSIP No. 0004491801 Page 3 of 6 pages
- --------------------- ------------------
==============================================================================
1 NAME OF REPORTING PERSON - S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE
PERSON
Allen & Company Incorporated - 13-6176976
- -----------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ]
(b) [x]
- -----------------------------------------------------------------------------
3 SEC USE ONLY
- -----------------------------------------------------------------------------
4 SOURCE OF FUNDS*
Not Applicable
- -----------------------------------------------------------------------------
5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
PURSUANT TO ITEMS 2(d) or 2(E) [ ]
- -----------------------------------------------------------------------------
6 CITIZENSHIP OR PLACE OF ORGANIZATION
New York
- ------------------------------------------------------------------------------
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH
- ------------------------------------------------------------------------------
7 SOLE VOTING POWER
360,000
- -----------------------------------------------------------------------------
8 SHARED VOTING POWER
0
- -----------------------------------------------------------------------------
9 SOLE DISPOSITIVE POWER
360,000
- -----------------------------------------------------------------------------
10 SHARED DISPOSITIVE POWER
0
- -----------------------------------------------------------------------------
11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
360,000
- -----------------------------------------------------------------------------
12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
CERTAIN SHARES* [ ]
- -----------------------------------------------------------------------------
13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
12.06%
- -----------------------------------------------------------------------------
14 TYPE OF REPORTING PERSON*
CO, BD
==============================================================================
*SEE INSTRUCTIONS BELOW BEFORE FILLING OUT!
SEC 1746 (9-88)
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<PAGE> Page 4 of 6 pages
AMENDMENT NO. 8
TO THE
SCHEDULE 13D
Items 5(a), 5(c) and 7 of this Schedule 13D filed by the Reporting
Persons referred to herein are hereby amended as follows:
Item 5. Interest in Securities of the Issuer
(a) As of the close of business on July 24, 1998, the Reporting
Persons named in Item 2 of this Schedule beneficially owned the following
aggregate numbers and percentages of the Issuer's Common Stock (based upon the
number of shares of Issuer's outstanding Common Stock of 2,984,758 reported in
the Issuer's Form 10-QSB for the quarter ended April 4, 1998).
<TABLE>
<CAPTION>
==============================================================================
Name Shares of Common Stock Percentage
- -----------------------------------------------------------------------------
<S> <C> <C>
Allen Holding Inc. 360,000 12.06%
- -----------------------------------------------------------------------------
Allen & Company Incorporated 360,000 12.06%
==============================================================================
</TABLE>
(c) The following table sets forth trades made by ACI since the
last Schedule 13D, dated July 13, 1998, was filed.
<TABLE>
<CAPTION>
==============================================================================
Price Per Buy (B) or
Trade Date Share ($) ACI Sell (S)
- -----------------------------------------------------------------------------
<S> <C> <C> <C>
7/15/98 4.625 15,000 S
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7/15/98 4.6875 17,500 S
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7/15/98 4.75 22,500 S
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7/16/98 4.8125 5,000 S
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7/17/98 4.75 2,500 S
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7/17/98 4.8125 5,000 S
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7/20/98 4.8125 6,500 S
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7/22/98 4.8125 8,000 S
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7/24/98 4.8125 15,500 S
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7/27/98 4.8125 13,000 S
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7/28/98 4.8125 5,000 S
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==============================================================================
</TABLE>
<PAGE>
<PAGE> Page 5 of 6 pages
Item 7. Material to be filed as Exhibits
List of Officers and Directors of Allen Holding Inc. and Allen
and Company Incorporated has not changed since last amendment, filed
on 7/14/98.
<PAGE>
<PAGE> Page 6 of 6 pages
After reasonable inquiry and to the best of our knowledge and
belief, we certify that the information set forth in this statement is true,
complete and correct.
Dated: July 29, 1998
ALLEN HOLDING INC.
By: /s/ Gaetano J. Casillo
------------------------------
Gaetano J. Casillo
Vice President
ALLEN & COMPANY INCORPORATED
By: /s/ Gaetano J. Casillo
------------------------------
Gaetano J. Casillo
Vice President
123782
