SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 ---------------------------------- AMENDMENT NO. 1 ON FORM 10-K/A TO FORM 10-K (mark one) [ X ] Annual Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 for the fiscal year ended January 3, 1998 [ ] Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Commission file number 1-8002 THERMO ELECTRON CORPORATION (Exact name of Registrant as specified in its charter) Delaware 04-2209186 (State or other jurisdiction of (I.R.S. Employer incorporation or organization) Identification No.) 81 Wyman Street, P.O. Box 9046 Waltham, Massachusetts 02254-9046 (Address of principal executive offices) (Zip Code) Registrant's telephone number, including area code: (781) 622-1000 Securities registered pursuant to Section 12(b) of the Act: Title of each class Name of each exchange on which registered ------------------------------- ----------------------------------------- Common Stock, $1.00 par value New York Stock Exchange Preferred Stock Purchase Rights Securities registered pursuant to Section 12(g) of the Act: None Indicate by check mark whether the Registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months, and (2) has been subject to the filing requirements for at least the past 90 days. Yes [ X ] No [ ] Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of the Registrant's knowledge, in definitive proxy or information statements incorporated by reference into Part III of this Form 10-K or any amendment to this Form 10-K. [ X ] The aggregate market value of the voting stock held by nonaffiliates of the Registrant as of January 30, 1998, was approximately $6,089,611,000. As of January 30, 1998, the Registrant had 159,173,807 shares of Common Stock outstanding. DOCUMENTS INCORPORATED BY REFERENCE Portions of the Registrant's Annual Report to Shareholders for the year ended January 3, 1998, are incorporated by reference into Parts I and II. Portions of the Registrant's definitive Proxy Statement for the Annual Meeting of Shareholders to be held on June 2, 1998, are incorporated by reference into Part III. PAGE FORM 10-K/A THERMO ELECTRON CORPORATION Item 1. Business -------- (a) General Development of Business ------------------------------- See attached. (c) Description of Business ----------------------- (i) Principal Products and Services ------------------------------- See attached. Item 14. Exhibits, Financial Statement Schedules, and Reports on Form 8-K ---------------------------------------------------------------- (c) Exhibits -------- 13 Annual Report to Shareholders for the year ended January 3, 1998 (only those portions incorporated herein by reference). 23 Consent of Arthur Andersen LLP. 2PAGE FORM 10-K/A Item 1. Business -------- (a) General Development of Business ------------------------------- Thermo Electron Corporation and its subsidiaries (the Company or the Registrant) develop, manufacture, and market analytical and monitoring instruments; biomedical products including heart-assist devices, respiratory-care equipment, and mammography systems; paper recycling and papermaking equipment; alternative-energy systems; industrial process equipment; and other specialized products. The Company also provides a range of services that include industrial outsourcing, particularly in environmental-liability management, laboratory analysis, and metallurgical processing; and conducts advanced-technology research and development. The Company performs its business through divisions and wholly owned subsidiaries, as well as majority-owned subsidiaries that are partially owned by the public or by private investors. A key element in the Company's growth has been its ability to commercialize innovative products and services emanating from research and development activities conducted by the Company's various subsidiaries. The Company's strategy has been to identify business opportunities arising from social, economic, and regulatory issues, and to seek a leading market share through the application of proprietary technology. As part of this strategy, the Company continues to focus on the acquisition of complementary businesses that can be integrated into its existing core businesses to leverage access to new markets. The Company believes that maintaining an entrepreneurial atmosphere is essential to its continued growth and development. To preserve this atmosphere, the Company has adopted a strategy of spinning out certain of its businesses into separate subsidiaries and having these subsidiaries sell a minority interest to outside investors. The Company believes that this strategy provides additional motivation and incentives for the management of the subsidiaries through the establishment of subsidiary- level stock option incentive programs, as well as capital to support the subsidiaries' growth. The Company's wholly and majority-owned subsidiaries are provided with centralized corporate development, administrative, financial, and other services that would not be available to many independent companies of similar size. As of April 2, 1998, the Company had 28 subsidiaries that have sold minority equity interests, 23 of which are publicly traded and 5 of which are privately held. The Company is a Delaware corporation and was incorporated in 1956. The Company completed its initial public offering in 1967 and was listed on the New York Stock Exchange in 1980. Forward-looking Statements Forward-looking statements, within the meaning of Section 21E of the Securities Exchange Act of 1934, are made throughout this Annual Report on Form 10-K. For this purpose, any statements contained herein that are not statements of historical fact may be deemed to be forward-looking statements. Without limiting the foregoing, the words "believes," "anticipates," "plans," "expects," "seeks," "estimates," and similar 3PAGE FORM 10-K/A expressions are intended to identify forward-looking statements. There are a number of important factors that could cause the results of the Company to differ materially from those indicated by such forward-looking statements, including those detailed under the heading "Forward-looking Statements" in the Registrant's 1997 Annual Report to Shareholders, which statements are incorporated herein by reference. 4PAGE FORM 10-K/A Item 1. Business -------- (c) Description of Business ----------------------- (i) Principal Products and Services ------------------------------- Instruments The Company, through its Thermo Instrument Systems Inc. subsidiary, is a worldwide leader in the development, manufacture, and marketing of instruments used to identify complex chemical compounds, toxic metals, and other elements in a broad range of liquids, solids, and gases, as well as to analyze air pollution and radioactivity. Thermo Instrument also provides instruments that control, monitor, image, inspect, and measure various industrial processes and life sciences phenomena. Thermo Instrument historically has expanded both through the acquisition of companies and product lines and through the internal development of new products and technologies. During the past several years, Thermo Instrument has completed a number of complementary acquisitions that have provided additional technologies, specialized manufacturing or product-development expertise, and broader capabilities in marketing and distribution. For example, in March 1997, Thermo Instrument acquired 95% of Life Sciences International PLC, a London Stock Exchange-listed company. Subsequently, Thermo Instrument acquired the remaining shares of Life Sciences' capital stock. Life Sciences manufactures laboratory science equipment, appliances, instruments, consumables, and reagents for the research, clinical, and industrial markets. In March 1996, Thermo Instrument completed the acquisition of a substantial portion of the businesses constituting the Scientific Instruments Division of Fisons plc, a wholly owned subsidiary of Rhone-Poulenc Rorer Inc. These businesses substantially added to Thermo Instrument's research, development, manufacture, and sale of analytical instruments to industrial and research laboratories worldwide. Certain of the Fisons businesses were since sold by Thermo Instrument to a number of its public subsidiaries that have complementary technologies and markets. Thermo Instrument adopted the Company's spinout strategy in an effort to more clearly focus its many instrumentation technologies on specific niche markets. To date, Thermo Instrument has completed initial public offerings of ThermoSpectra Corporation, ThermoQuest Corporation, Thermo Optek Corporation, Thermo BioAnalysis Corporation, Metrika Systems Corporation, Thermo Vision Corporation, and ONIX Systems Inc. Thermo Instrument's subsidiaries are outlined below: ThermoSpectra develops, manufactures, and markets precision imaging and inspection, temperature-control, and test and measurement instruments. These instruments are generally combined with proprietary operations and analysis software to provide industrial and research customers with integrated systems that address their specific needs. 5PAGE FORM 10-K/A ThermoQuest is a leading provider of mass spectrometers, liquid chromatographs, and gas chromatographs for the pharmaceutical, environmental, and industrial marketplaces. These analytical instruments are used in the quantitative and qualitative chemical analysis of organic and inorganic compounds at ultratrace levels of detection. ThermoQuest also supplies scientific equipment for the preparation and preservation of chemical samples, and consumables for the chromatography industry. Thermo Optek is a worldwide leader in the development, manufacture, and marketing of analytical instruments that use a range of light- and energy-based techniques. Thermo Optek's instruments are used in the quantitative and qualitative chemical analysis of elements and molecular compounds in a variety of solids, liquids, and gases. Thermo BioAnalysis develops, manufactures, and markets instruments, consumables, and information-management systems used in biochemical research and production, as well as in clinical diagnostics. Thermo BioAnalysis focuses on three principal product areas: life sciences instrumentation and consumables, information-management systems, and health physics instrumentation. Metrika Systems manufactures process optimization systems that provide on-line, real-time analysis of the elemental composition of bulk raw materials in basic-materials production processes, including coal, cement, and minerals. In addition, Metrika Systems manufactures industrial gauging and process-control instruments and systems used principally by manufacturers of finished web materials, such as sheet metal, rubber, and plastic foils, to measure and control parameters such as thickness and coating weight of such materials. Thermo Vision, which became a public subsidiary of Thermo Instrument in December 1997, designs, manufactures, and markets a diverse array of photonics (light-based) products, including optical components, imaging sensors and systems, lasers, optically based instruments, opto- electronics, and fiber optics. These products are used in applications including medical diagnostics, semiconductor production, X-ray imaging, physics research, and telecommunications. ONIX Systems, which became a public subsidiary of Thermo Instrument in March 1998, designs, develops, markets, and services sophisticated field measurement instruments and on-line sensors for process-control industries, particularly oil and gas. Systems provide real-time data collection, analysis, and local control functions regarding the flow, level, density, or composition of a particular material. Thermo Instrument also has wholly owned businesses, including the Life Sciences Clinical Instrument Division, which provides an array of clinical laboratory equipment and consumables, and Thermo Monitoring Instruments, which produces instruments and complete systems for detecting and monitoring environmental pollutants from industrial and mobile sources, and for detecting radioactive contamination. 6PAGE FORM 10-K/A Alternative-energy Systems The Company's Alternative-energy Systems segment includes the operation of independent (non-utility) power plants that operate using environmentally sound fuels and technologies, the development of engineered clean fuels, and the manufacture and sale of biopesticides. This segment also includes the manufacture, sale, and servicing of intelligent traffic-control systems, industrial refrigeration equipment; natural gas engines; packaged cooling and cogeneration systems; and steam turbines and compressors. Through its Thermo Ecotek Corporation subsidiary, the Company designs, develops, owns, and operates independent (non-utility) electric power-generation facilities that use environmentally responsible fuels, including agricultural and wood wastes, referred to as "biomass." Thermo Ecotek currently operates seven biomass facilities. Its facilities are developed and operated through joint ventures or limited partnerships in which it has a majority interest, or through wholly owned subsidiaries. Thermo Ecotek intends to pursue development of biomass and other power-generation projects both in the U.S. and overseas. In 1996, Thermo Ecotek formed a joint venture in Italy to develop, own, and operate biomass-fueled electric power facilities, and in January 1997, announced a joint agreement to expand two district energy centers in the Czech Republic. In the U.S., where the Company believes that utility deregulation may present opportunities for updating aging plants, Thermo Ecotek signed a $9.5 million agreement in November 1997 to purchase two deregulated plants in southern California for possible refurbishing and repowering. Thermo Ecotek is expanding beyond power generation into other products and processes that protect the environment. In August 1995, Thermo Ecotek, through two wholly owned subsidiaries, entered into a Limited Partnership Agreement with KFx Wyoming, Inc., a subsidiary of KFx Inc., to develop, construct, and operate a coal-beneficiation plant in Gillette, Wyoming. The facility employs patented "clean coal" technology to remove excess moisture and increase energy from subbituminous coal extracted from Wyoming's Powder River Basin. In May 1996, Thermo Ecotek entered the biopesticide business by acquiring the assets, subject to certain liabilities, of the biopesticide division of W.R. Grace & Co. (renamed Thermo Trilogy), which develops, manufactures, and markets environmentally friendly products for agricultural pest control. In January 1997, Thermo Trilogy acquired the assets of biosys, inc., a producer of pheromone, neem/azadiractin, nematodes, and virus-based biopesticide products, as well as disease-resistant sugar cane, and in November 1997, purchased the Bt biopesticide product line of Novartis AG. The Company, through its Thermo Power Corporation subsidiary, manufactures, markets, and services intelligent traffic-control systems, industrial refrigeration equipment, engines for vehicular and stationary applications, natural gas-fueled commercial cooling and cogeneration systems, and, through its privately held ThermoLyte Corporation 7PAGE FORM 10-K/A subsidiary, is developing a line of gas-powered lighting products for commercialization. In November 1997, Thermo Power completed a cash tender offer for Peek plc, based in the U.K. Through Peek, the Company offers a range of intelligent traffic-control systems for urban traffic control, motorway management, and public transportation management in cities worldwide. Systems include traffic-signal synchronization systems to minimize congestion, variable message systems to advise drivers of accidents or construction, video systems to provide real-time analysis of traffic flows at intersections and on highways, as well as automatic toll-collection systems. Peek also has developed high-resolution video equipment to aid police officers in monitoring traffic violations. Through its industrial refrigeration business, Thermo Power supplies standard and custom-designed industrial refrigeration systems used primarily by the food-processing, petrochemical, and pharmaceutical industries. Thermo Power is also a supplier of both remanufactured and new commercial cooling equipment for sale or rental. The commercial cooling equipment is used primarily in institutions and commercial buildings, as well as by service contractors. Thermo Power also develops, manufactures, markets, and services gasoline engines for recreational boats, propane and gasoline engines for lift trucks, and natural gas engines for vehicles and stationary industrial applications; and designs, develops, markets, and services packaged cooling and cogeneration systems fueled principally by natural gas. The Company's Alternative-energy Systems segment also includes a U.K.-based manufacturer of steam turbines and compressors. Paper Recycling The Company designs, manufactures, and sells paper recycling and papermaking equipment and accessory products, and electroplating and aqueous cleaning systems. Through its Thermo Fibertek Inc. subsidiary, the Company is a leading designer and manufacturer of processing machinery, accessories, and water-management systems for the paper and paper recycling industries. Thermo Fibertek's custom-engineered systems remove debris, impurities, and ink from wastepaper, and process it into a fiber mix used to produce recycled paper. Thermo Fibertek's principal products include custom-engineered systems and equipment for the preparation of wastepaper for conversion into recycled paper, accessory equipment and related consumables important to the efficient operation of papermaking machines, and water-management systems essential for draining, purifying, and recycling process water. In May 1997, Thermo Fibertek acquired the majority of the assets, subject to certain liabilities, of the stock-preparation business of Black Clawson Company and certain of its affiliates. In August 1997, the Company acquired the remaining assets of the stock-preparation business 8PAGE FORM 10-K/A of Black Clawson Company and such affiliates. This business, renamed Thermo Black Clawson, is a leading supplier of recycling equipment used in processing fiber for the manufacture of "brown paper," such as that used for corrugated boxes. In September 1996, Thermo Fibergen Inc. became a majority-owned, public subsidiary of Thermo Fibertek. Thermo Fibergen is developing and commercializing equipment and systems to recover materials from papermaking sludge generated by plants that produce virgin and recycled pulp and paper. Thermo Fibergen's GranTek Inc. subsidiary uses a patented process to convert papermaking sludge into granules that are used for applications including carriers for agricultural chemicals, oil and grease absorption, and catbox filler. Through a wholly owned subsidiary, the Company also manufactures electroplating systems and related waste-treatment equipment and accessories, as well as aqueous systems for cleaning metal parts without using ozone-damaging solvents. Biomedical Products The Company's Biomedical Products segment comprises a number of diverse medical products businesses, both wholly and publicly owned, that supply a wide range of medical systems and devices for diagnostic imaging, cardiovascular support, respiratory care, neurodiagnostics, sleep analysis, wireless patient monitoring, and blood management. The Company's biomedical products are provided to hospitals, clinics, universities, private-practice medical offices, and medical research facilities. Its wholly owned Thermo Biomedical group includes Bear Medical Systems, the business of which was acquired from Allied Healthcare Products, Inc. in October 1997. Bear Medical designs, manufactures, and markets respiratory products, primarily ventilators. Also part of the Company's Thermo Biomedical group are SensorMedics Corporation, a leading provider of systems for pulmonary function diagnosis and a producer of respiratory gas analyzers, physiological testing equipment, and automated sleep-analysis systems; and Medical Data Electronics, a manufacturer of patient-monitoring systems. Both companies were acquired in 1996. Nicolet Biomedical Inc., another wholly owned subsidiary of the Company, is a leading manufacturer of biomedical instruments for assessing muscle, nerve, sleep, hearing, and brain blood-flow disorders, various neurologic disorders, and for related work in clinical neurophysiology. In September 1997, Nicolet acquired IMEX Medical Systems, Inc., a leading manufacturer of products used to evaluate peripheral vascular disease, as well as products to detect fetal heartbeat. This subsidiary is now called Nicolet Vascular Inc. Another wholly owned subsidiary, Bird Medical Technologies, Inc., develops, manufactures, and sells respiratory-care equipment and accessories and infection-control products to hospitals, subacute-care 9PAGE FORM 10-K/A facilities, outpatient surgical centers, doctors, dentists, the military, and to other manufacturers. Thermo Cardiosystems Inc., a public subsidiary of Thermedics Inc., has developed an implantable left ventricular-assist system (LVAS) called HeartMate(TM) that, when implanted alongside the natural heart, is designed to take over the pumping function of the left ventricle for patients whose hearts are too damaged or diseased to produce adequate blood flow. Thermo Cardiosystems has two versions of the LVAS: a pneumatic (or air-driven) system that can be controlled by either a bedside console or portable unit, and an electric system that features an internal electric motor powered by an external battery-pack worn by the patient. The air-driven HeartMate system has received both the European Conformity Mark and U.S. Food and Drug Administration (FDA) approval for commercial sale. The electric version of the LVAS, which also holds the CE Mark, is currently awaiting commercial approval by the FDA for use as a bridge to transplant. In Europe, the device is used both as a bridge to transplant and as an alternative to medical therapy. In December 1996, Thermo Cardiosystems acquired the business of Nimbus Medical, Inc., a research and development organization involved for more than 20 years in technology for ventricular-assist devices and total artificial hearts, including high-speed rotary blood pumps, which are relatively small and could potentially provide cardiac support in small adults and children. Also part of Thermo Cardiosystems is International Technidyne Corporation, a leading manufacturer of hemostasis-management products, including blood coagulation-monitoring instruments, and a supplier of skin-incision devices used to draw small blood samples precisely and with minimal discomfort. Trex Medical Corporation, a public subsidiary of ThermoTrex Corporation, designs, manufactures, and markets a range of medical imaging systems. It is the world's leading manufacturer of mammography equipment and minimally invasive digital breast-biopsy systems. Trex Medical also provides general-purpose and specialty radiographic systems, such as those used in the diagnosis and treatment of coronary artery disease and other vascular conditions. In early December, Trex Medical submitted a 510(k) application to the FDA seeking clearance to market its digital imaging system for mammography. The Company believes that an advantage of digital imaging is that radiologists can manipulate and enhance image quality to scrutinize subtle differences that may otherwise go undetected on film-based X-rays. If the FDA approves the digital imaging system for mammography applications, Trex Medical plans to develop its digital technology for use in certain of its other products. ThermoLase Corporation, also a public subsidiary of ThermoTrex, operates a network of spas that offer its patented SoftLight(R) hair-removal system, for which it received FDA clearance in April 1995. 10PAGE FORM 10-K/A The SoftLight system uses a low-energy dermatology laser in combination with a lotion to remove hair. ThermoLase submitted a 510(k) application for its laser-based skin-retexturing system, based on data from clinical trials. ThermoLase currently has 14 Spa Thira locations in the U.S., with 3 spas outside the U.S.: in Paris, France; Lugano, Switzerland; and Dubai, U.A.E. To complement its Spa Thira salons, ThermoLase has commenced a program to license the SoftLight hair-removal process to physicians for use in their practices. ThermoLase has established a number of joint ventures and other physician-licensing arrangements to market its SoftLight processes internationally. ThermoLase also manufactures and markets personal care products sold through department stores, salons, and spas, including the lotion that is used in the SoftLight hair-removal process. Trex Communications Corporation, a majority-owned, privately held subsidiary of ThermoTrex, is developing laser communications technology designed to transmit very large amounts of data quickly, and also designs and markets interactive information and voice-response systems, as well as automated calling equipment. Industrial Outsourcing Through its Thermo TerraTech Inc. subsidiary, the Company provides outsourcing services, primarily in environmental-liability management and infrastructure planning and design, with specialization in the areas of municipal and industrial water quality management, bridge and highway construction and reconstruction, and natural resource management. Thermo TerraTech also offers comprehensive environmental testing and analysis through a national network of laboratories serving the pharmaceutical, food, and environmental industries. Thermo Remediation Inc., a public subsidiary of Thermo TerraTech, is a national provider of outsourcing services for environmental management, including industrial, nuclear, and soil remediation, as well as waste-fluids recycling, primarily helping clients manage problems associated with environmental compliance, waste management, and the cleanup of sites contaminated with organic or toxic wastes. The Randers Group Incorporated, also a public subsidiary of Thermo TerraTech, provides comprehensive engineering and outsourcing services in such areas as water and wastewater treatment, highway and bridge projects, process engineering, construction management, and operational services. A privately held subsidiary of Thermo TerraTech, Thermo EuroTech N.V., provides remediation and recycling services in Europe. The Company treats oil-based contaminated soils and recycles waste oil and oily waste streams. In February 1998, Thermo EuroTech acquired a controlling interest in an Irish environmental services company that provides comprehensive in-plant waste management and recycling services to high-tech manufacturing firms in that country. 11PAGE FORM 10-K/A In addition, metallurgical heat-treating services are provided by a wholly owned subsidiary of the Company for customers in the automotive, aerospace, defense, and other industries. The Company also provides, through another wholly owned business, metallurgical fabrication services, principally on high-temperature materials, for customers in the aerospace, medical, electronics, and nuclear industries. Advanced Technologies The Company's Advanced Technologies segment includes basic and applied research and development, often sponsored by the U.S. government, that is conducted with a goal of identifying viable commercial opportunities for new ventures. A number of its subsidiaries also provide various instrument systems, developed primarily for product quality-assurance applications in industrial, food and beverage, pharmaceutical, and electronics markets. The Company's ThermoTrex subsidiary conducts sponsored research and development with the goal of commercializing new products based on advanced technologies developed in its laboratories. Sponsored research and development, conducted principally for the U.S. government, includes basic and applied research in communications, avionics, X-ray detection, signal processing, advanced-materials technology, and lasers. ThermoTrex is currently developing a number of additional technologies that it believes may have future commercial potential. These include a passive microwave camera intended to "see" through clouds and fog to enhance safety in aerial navigation, a space surveillance system designed to produce high-resolution images of low-earth-orbit satellites, a rapid optical beam steering laser radar system, and direct digital imaging systems for medical equipment to improve image quality for earlier and more accurate clinical diagnoses. The Company's Thermo Coleman Corporation subsidiary provides systems engineering, technology support and information-technology services and products. Thermo Coleman also provides defense- and environmental-systems engineering, integration and analysis services, and advanced technology research and development, primarily to the U.S. government. Using expertise gained from its government contract work, Thermo Coleman designs, develops, and commercializes services and products in areas such as information technology and sensor and measurement systems for customers in industries including healthcare, education, aircraft production, government, utilities, and entertainment. Thermo Sentron Inc., a public subsidiary of Thermedics, designs and manufactures high-speed precision-weighing and inspection equipment for packaging lines and industrial production. Thermo Sentron serves two principal markets, packaged goods and bulk materials, both of which use its products to meet quality and productivity objectives. Customers for Thermo Sentron's checkweighers are in the food-processing, pharmaceutical, mail-order, and other packaged-goods businesses. Thermo Sentron also sells metal detectors with a patented self-test feature that are used to inspect packaged products for metal contamination to 12PAGE FORM 10-K/A food-processing and pharmaceutical companies. Its bulk-materials product line includes conveyor-belt scales, solid level-measurement and conveyor-monitoring systems, and sampling systems, all sold to customers in the mining and material-processing industries, as well as to electric utilities, chemical, and other manufacturing companies. Thermedics Detection Inc., another public subsidiary of Thermedics, develops and manufactures high-speed on-line analysis systems used for product quality assurance in a variety of industrial processes, as well as for security. Thermedics Detection provides X-ray imaging systems that monitor a wide range of containers for fill volume, net volume, and package integrity, as well as systems that detect trace amounts of contaminants in refillable bottles, specifically for the beverage industry. For the beverage, food, cosmetic, and other industries, Thermedics Detection also makes instruments that use near-infrared spectroscopy to measure moisture and other product components, including fat, protein, solvents, and other substances in numerous consumer and industrial products. Thermedics Detection recently introduced an ultrahigh-speed gas chromatograph that permits manufacturers to conduct laboratory-quality analysis for near-on-line process-control applications. Thermo Voltek Corp., also a public subsidiary of Thermedics, designs, manufactures, and markets test instruments and a range of products related to power amplification, conversion, and quality. Thermo Voltek's power products are used in communications, broadcast, research, and medical imaging applications. Its test instruments allow manufacturers of electronic systems and integrated circuits to test for electromagnetic compatibility. On March 30, 1998, Thermedics approved a proposal to acquire, through a merger, all of the outstanding shares of common stock of Thermo Voltek that Thermedics does not own at a price of $7.00 per share in cash. The total transaction cost to Thermedics is estimated to be approximately $27 million, which includes approximately $5.25 million for the redemption of the outstanding Thermo Voltek 3 3/4 percent convertible subordinated debentures due 2000. The merger is contingent upon, among other things, the negotiation and execution of a definitive merger agreement; receipt by the Thermo Voltek board of directors of an opinion by an investment banking firm that Thermedics' offer is fair to Thermo Voltek shareholders (other than Thermedics and the Company) from a financial point of view; the approval of the Thermo Voltek board of directors upon recommendation of a special committee of its independent directors; and clearance by the Securities and Exchange Commission of the proxy materials regarding the proposed transaction. On March 31, 1998, two complaints naming the Company as a defendant, among others, regarding Thermedics' proposed acquisition of Thermo Voltek were filed in Delaware Chancery Court by two Thermo Voltek shareholders attempting to act on behalf of the other public shareholders of Thermo Voltek. The complaints allege, among other things, that the proposed price of $7.00 per share is unfair and grossly inadequate. Through a wholly owned subsidiary, Thermedics manufactures electrode-based chemical-measurement products used in the agricultural, biomedical research, food processing, pharmaceutical, sewage treatment, 13PAGE FORM 10-K/A and many other industries. In laboratories, manufacturing plants, and in the field, Thermedics' products permit these industries to determine the presence and amount of relevant chemicals. Thermedics also manufactures on-line process monitors used by power plants and semiconductor manufacturers to detect contaminants in high-purity water. 14 PAGE FORM 10-K/A THERMO ELECTRON CORPORATION SIGNATURES Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the Registrant has duly caused this Amendment No. 1 on Form 10-K/A to be signed on its behalf by the undersigned, thereunto duly authorized. Date: April 3, 1998 THERMO ELECTRON CORPORATION By: Paul F. Kelleher -------------------------------- Paul F. Kelleher Senior Vice President, Finance and Administration