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}} was a Tektronix engineer. | }} was a Tektronix engineer. | ||
In 1950 he joined the U.S. Air Force and trained as a fighter pilot flying F-84s. In 1958 he graduated from the University of Michigan with a bachelor's degree in electrical engineering, then moved to Silicon Valley where he worked at Sylvania while completing his master's in electrical engineering from Stanford in 1960<ref>[https://obits.oregonlive.com/us/obituaries/oregon/name/carl-battjes-obituary?id=19269082 Carl Battjes Obituary] @ OregonLive</ref>. | In 1950 he joined the U.S. Air Force and trained as a fighter pilot flying F-84s. | ||
In 1958 he graduated from the University of Michigan with a bachelor's degree in electrical engineering, then moved to Silicon Valley where he worked at Sylvania while completing his master's in electrical engineering from Stanford in 1960<ref>[https://obits.oregonlive.com/us/obituaries/oregon/name/carl-battjes-obituary?id=19269082 Carl Battjes Obituary] @ OregonLive</ref>. | |||
Battjes had designed a 300 MHz transistor amplifier at [[Sylvania]] before he joined Tektronix in 1961 to work on high-speed amplifiers. | Battjes had designed a 300 MHz transistor amplifier at [[Sylvania]] before he joined Tektronix in 1961 to work on high-speed amplifiers. | ||
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Naturally, I was thrown immediately into the job of designing high-bandwidth oscilloscope transistor vertical-output amplifiers. | Naturally, I was thrown immediately into the job of designing high-bandwidth oscilloscope transistor vertical-output amplifiers. | ||
I felt like a private, fresh out of basic training, on the front lines in a war. | I felt like a private, fresh out of basic training, on the front lines in a war. | ||
</blockquote> | |||
[https://vintagetek.org/years-at-tektronix-hofer/ According to Bruce Hofer], | |||
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It was also around this time that I was asked to take over the instructor responsibilities of “AFTR”, Amplifier Frequency and Transient Response, an in-house course developed by Carl Battjes. I wasn’t sure I was up to the challenge, but soon became comfortable in this new role. AFTR was a virtual pre-requisite among analog designers. Carl’s focus had been solely on vertical amplifiers, so I added a lot of new material related to the design of other types of amplifiers. I ended up teaching the course for 7 years. Some years later when Carl became terminally ill, he begged me to “write the book” for him. Alas, I did not have the time, having moved on into a very different design realm. | |||
</blockquote> | </blockquote> | ||