Tektronix
Tektronix, Inc., historically widely known as Tek, is an American company best known for manufacturing test and measurement devices such as oscilloscopes, logic analyzers, and video and mobile test protocol equipment. Originally an independent company, it is now a subsidiary of Ralliant, a spinoff from Fortive.
History
1946–1954
The company traces its roots to the electronics revolution that immediately followed World War II. It was founded in December 1945 as Tekrad. The name was similar to that of a California company, Techrad, so in 1946, the four partners, Howard Vollum, Jack Murdock and Miles Tippery, who had both served in the Coast Guard, and accountant Glenn McDowell, formed Tektronix, Inc. Each contributed an initial $2,600 for equal shares.Howard Vollum had graduated in 1936 from Reed College with a degree in physics and a keen interest in oscilloscopes, then worked as a radio technician at Jack Murdock's Murdock Radio and Appliance Company prior to the outbreak of war, during which he served in the Signal Corps. Following the founding of Tektronix, Vollum invented the world's first triggered oscilloscope in 1946, a significant technological breakthrough. This oscilloscope—refined and developed by Tektronix—was the model 511 produced from 1947 to 1953. The model 511 was a triggered-sweep oscilloscope. The first oscilloscope with a true time-base was the Tektronix Model 513.
The leading oscilloscope manufacturer at the time was DuMont Laboratories. DuMont pioneered the frequency-synch trigger and sweep. Allen DuMont personally tried the 511 at an electronics show and was impressed, but when he saw the price of $795, which was about twice as much as his equivalent model, he told Howard Vollum at the show that they would have a hard time selling many.
Tektronix was incorporated in 1946 with its headquarters at SE Foster Road and SE 59th Avenue in Portland, Oregon, just six blocks from Murdock's first family home. In 1947 there were 12 employees. Four years later, in 1951, Tektronix had 250 employees. Murdock and Vollum were known humanitarians and sought to operate their business as one might run a large and caring family. In 1978, Tektronix was named by authors Robert Levering and Milton Moskowitz, et al., as among The 100 best companies to work for in America in their book of the same name.
By 1950, the company began building a manufacturing facility in Washington County, Oregon, at Barnes Road and the Sunset Highway and, by 1956, had expanded the facility to. The company then moved its headquarters to this site, following an employee vote.
A detailed story of Howard Vollum and Jack Murdock along with the products that made Tektronix a leader in oscilloscopes can be found at the Museum of Vintage Tektronix Equipment.
1955–1969
In 1956, a large property in Beaverton became available, and the company's employee retirement trust purchased the land and leased it back to the company. Construction began in 1957 and on May 1, 1959, Tektronix moved into its new Beaverton headquarters campus, on a site which came to be called the Tektronix Industrial Park.In the late 1950s, Tektronix set a new trend in oscilloscope applications that would continue into the 1980s. This was the introduction of the plug-in oscilloscope. Starting with the 530 and 540 series oscilloscopes, the operator could switch in different horizontal sweep or vertical input plug-ins. This allowed the oscilloscope to be an adaptable test instrument. Later Tektronix added plug-ins to have the scope operate as a spectrum analyzer, waveform sampler, cable tester and transistor curve tracer. The 530 and 540 series also ushered in the delayed trigger, allowing to trigger between a sweep rather than at the beginning. This allows more stable triggering and better waveform reproduction.
In 1961, Tektronix sold its first completely portable oscilloscope, the model 321. This oscilloscope could run on AC line or on rechargeable batteries. It also brought the oscilloscope into the transistor age. A year and a half later, the all-transistor model 321A came out.
The 560 series introduced the rectangular CRT to oscilloscopes. In 1964 Tektronix made an oscilloscope breakthrough: the world's first mass-produced analog storage oscilloscope, the model 564. Hughes Aircraft Company is credited with the first working storage oscilloscope but it was made in very small numbers and is extremely rare today.
In 1966, Tektronix brought out a line of high-frequency full-function oscilloscopes called the 400 series. The oscilloscopes were packed with features for field work applications. These scopes were outstanding performers often preferred over their laboratory bench models. The first models were the 422, a 16 MHz bandwidth and the 453, a 50 MHz bandwidth model. The following year the 454, a 150 MHz portable. These models put Tektronix well ahead of their competitors for years. The US military contracted with Tektronix for a model 453 "ruggedized" for field servicing. The 400 series models would continue to be popular choices in the 1970s and '80s. In addition the styling of the 400 series would be copied by Tektronix's competitors. 400 series oscilloscopes were still being used as of 2013.
1970–1985
In 1974, the company acquired in Wilsonville, Oregon where it built a facility for its imaging group. By 1976, the company employed nearly 10,000, and was the state's largest employer. Tektronix's 1956 expansion and, in 1962, Electro Scientific Industries' similar move to Washington County and expansion are credited with fostering the development of a large high-tech industry in Washington County, a number of firms which collectively are often referred to as the "Silicon Forest".For many years, Tektronix was the major electronics manufacturer in Oregon, and in 1981, its U.S. payroll peaked at over 24,000 employees. Tektronix also had operations in Europe, South America and Asia. European factories were located in Saint Peter's, Guernsey until 1990, Hoddesdon and Heerenveen, Netherlands. Some oscilloscopes marketed in Europe and the UK were sold under the brand name Telequipment but many in the UK used the Tektronix brand name in the 1960s and '70s.
For many years, Tektronix operated in Japan as Sony-Tektronix, a 50-50 joint venture of Sony Corporation and Tektronix, Inc; this was due to Japanese trade restrictions at the time. Since then, Tektronix has bought out Sony's share and is now the sole owner of the Japanese operation. Under the Sony-Tektronix name, the 300 series oscilloscopes were lightweight and totally portable. They replaced the model 321/321A oscilloscopes. Examples of the Sony/Tektronix models were 314, 323, 335 and 370.
During the early 1970s, Tektronix made a major design change to their oscilloscopes. The 5000 and 7000 series oscilloscopes maintained the plug-in capabilities that originally started with the 530 and 540 series; however, the choice of plug-ins was even greater. These scopes used custom designed integrated circuits fabricated by Tektronix. The CRTs were all rectangular and were all fabricated by Tektronix. These oscilloscopes provided on screen controls setting. The 5000 series was the general purpose line while the 7000 series were capable of a wide variety of applications and could accept as many as 4 plug-ins. One model, the 7104, was a true 1 GHz bandwidth oscilloscope.
Beginning with the firm's first cathode ray oscilloscopes, Tektronix has enjoyed a leading position in the test and measurement market. Although its equipment was expensive, it had performance, quality, and stability. Most test equipment manufacturers built their oscilloscopes with off-the-shelf, generally available components. But Tektronix, in order to gain an extra measure of performance, used many custom-designed or specially-selected components. They even had their own factory for making ultra-bright and sharp CRT tubes. Later on, they built their own integrated circuit manufacturing facility in order to make custom ICs for their equipment.
Tektronix instruments contributed significantly to the development of computers, test, and telecommunications equipment and to the advancement of research and development in the high-technology electronics industry generally.
As time went on, Tektronix fabricated more and more of their electronic parts. This led to very specialized skills and talents which in time led to employees forming new businesses. Some former Tektronix employees left to create other successful "Silicon Forest" companies. Spin-offs include Mentor Graphics, Planar Systems, Floating Point Systems, Cascade Microtech, Merix Corporation, Anthro Corporation and Northwest Instrument Systems – later renamed to MicroCase. Even some of the spin-offs have created spin-offs, such as InFocus. As Tektronix fabricated more specialized parts, they spread out their product base to include logic analyzers, digital multimeters and signal generators. The TM500 and TM5000 rack mount series was born featuring custom designed test instruments chosen by the buyer.
During this period, Tektronix acquired what were sold as the 8000 and 8002 Microprocessor Development System, the 8000 being a software development system running editors and cross-compilers with twin floppy disk storage, while the 8002 could be fitted with real-time emulators for several processors including the 8080, Z80 and 6502. These were later replaced by the 8540/8550/8560. The 8550 was a standalone development system capable of being fitted with real time emulation hardware for several different processors. The 8560 emerged just after Bell Labs were able to sell UNIX commercially, and ran a mildly modified version of Version 7 UNIX, called TNIX, supporting 4 or 8 serial terminals, with a special High-Speed Input/Output, based on RS-422, to connect to a remote 8540. There was a hard drive of about 34MB, later increased, and a variable amount of RAM depending on the processor card fitted, which was either a DEC LSI11-23+ or a LSI11-73, which had a wider address bus as well as a higher clock speed. The final upgraded variant was the 8562. The 8540, of which several could be connected to the 8560, contained emulation hardware similar to that available for the 8550, including RAM cards, Trigger Trace Analyser, 1 or 2 processor emulator cards, each with external probe, etc. The 8540 had no software development capability, but worked with the 8560, or other systems such as a VAX, which would provide the software development environment. It was unique in its day, in that the serial terminal could be connected to the 8540, on the bench, or to the 8560, and would pass UNIX commands automatically to the 8560, which passed emulator commands back to the 8540 for execution, completely transparently. Thus a complete compile, link, load and emulate session could be run from a UNIX shell script, a facility probably not seen on any development system since. The 8540/8550/8560 supported many 8-bit and 16-bit microprocessor types, with a change of emulator cards and probes, and installation of assembler and possibly compiler software, and did not require any particular code to be linked in to the user's code to facilitate register tracing at breakpoints, a shortcoming of the only real alternative multi-manufacturer MDS of that era, by HP. However, an impressive feature was that by including a special instruction sequence, typically a double NOP followed by a call to a specific address, the emulator would generate a "Service Call" to take whatever action the user required, and continue execution. This for example could allow UNIX to write variables to a log file as commanded by the running program on the emulated microprocessor.
It is not clear at present why Tektronix eventually withdrew from the MDS business, as their products were highly regarded.