John Kobbe: Difference between revisions
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Having had no formal engineering education, Kobbe | Having had no formal engineering education, Kobbe | ||
co-initiated a "scope class" to design and build an oscilloscope | co-initiated a "scope class" to design and build an oscilloscope | ||
in the test department, | in the test department, during which he designed an un-blanking circuit and a | ||
simplified sweep circuit that were eventually used in the 300 series. | simplified sweep circuit that were eventually used in the 300 series. | ||
Kobbe then joined the Engineering department and later | Kobbe then joined the Engineering department and later the Advanced Research group. | ||
==Products and Inventions== | ==Products and Inventions== | ||
* unblanking and sweep circuits for [[310]], [[315]] | * unblanking and sweep circuits for [[310]], [[315]] | ||
* [[575]] curve tracer | * [[575]] curve tracer | ||
* Use of lossy coax cable in scope probes: [http://www.freepatentsonline.com/2883619.html US Patent 2883619, ''Electrical Probe'']. [[John Kobbe]] and [[Bill Polits]]. Applied 1956. ([http://patentimages.storage.googleapis.com/pdfs/US2883619.pdf PDF]) | |||
: see [http://wpeval.wilhelmphoto.com/?page_id=13 Tek Stories: Oscilloscope Patents] | |||
: and [http://dfad.com.au/links/THE%20SECRET%20WORLD%20OF%20PROBES%20OCt09.pdf Doug Ford, ''The Secret World of Oscilloscope Probes''] | |||
* [http://w140.com/US2930986.pdf US Patent 2,930,986, ''Distributed Amplifier''], [[John Kobbe]] and [[Bill Polits]]. Applied 1956. ([http://patentimages.storage.googleapis.com/pdfs/US2930986.pdf PDF]) | |||
* [[T581]] CRT (ref. [http://extras.springer.com/2006/978-0-387-28340-1/wbapdx51.pdf Staric/Margan paper]) | |||
==Publications== | ==Publications== | ||
| Line 22: | Line 24: | ||
* http://www.vintagetek.org/wp-content/uploads/2011/10/Tek-series-500-development.pdf | * http://www.vintagetek.org/wp-content/uploads/2011/10/Tek-series-500-development.pdf | ||
* http://www.vintagetek.org/my-early-tektronix-days-by-john-kobbe-2/ | * http://www.vintagetek.org/my-early-tektronix-days-by-john-kobbe-2/ | ||
==Photos== | ==Photos== | ||
Revision as of 23:43, 27 September 2017
John Kobbe joined Tektronix in 1951 to work in the test department.
Having had no formal engineering education, Kobbe co-initiated a "scope class" to design and build an oscilloscope in the test department, during which he designed an un-blanking circuit and a simplified sweep circuit that were eventually used in the 300 series.
Kobbe then joined the Engineering department and later the Advanced Research group.
Products and Inventions
- unblanking and sweep circuits for 310, 315
- 575 curve tracer
- Use of lossy coax cable in scope probes: US Patent 2883619, Electrical Probe. John Kobbe and Bill Polits. Applied 1956. (PDF)
- US Patent 2,930,986, Distributed Amplifier, John Kobbe and Bill Polits. Applied 1956. (PDF)
- T581 CRT (ref. Staric/Margan paper)
Publications
- http://www.vintagetek.org/wp-content/uploads/2011/10/Tek-series-500-development.pdf
- http://www.vintagetek.org/my-early-tektronix-days-by-john-kobbe-2/
