John Kobbe: Difference between revisions

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 [[File:Kobbe_1959.jpg|thumb|300px|right|John Kobbe, 1959]]
+{{Person
+|Names=John R. Kobbe
+|Birth date=
+|Birth place=
+|Death date=2013-03-07
+|Death place=
+|Countries=
+|Affiliations=Tektronix;
+}} joined Tektronix in 1951 to work in the test department.
-'''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.
-Having had no formal engineering education, Kobbe
+Kobbe then joined the Engineering department and later the Advanced Research group.
-co-initiated a "scope class" to design and build an oscilloscope
-in the test department, don't ring 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 into the Advanced Research group..
 ==Products and Inventions==
-* Use of lossy coax cable in scope probes: [http://www.freepatentsonline.com/2883619.html US Patent 2883619, Electrical Probe]. John Kobbe and [[Bill Polits]] (filed 1956)
-: 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'']
 * unblanking and sweep circuits for [[310]], [[315]]
-* [[575]] curve tracer
+* [[570]] curve tracer
+* Use of lossy coax cable in scope probes: [[Patent US 2883619A|US Patent 2883619, ''Electrical Probe'']]. [[John Kobbe]] and [[Bill Polits]]. Applied 1956.
+: see also [http://dfad.com.au/links/THE%20SECRET%20WORLD%20OF%20PROBES%20OCt09.pdf Doug Ford, ''The Secret World of Oscilloscope Probes'']
+* [[Patent US 2930986A|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==
+==Links==
-* http://www.vintagetek.org/wp-content/uploads/2011/10/Tek-series-500-development.pdf
+* [https://www.vintagetek.org/my-early-tektronix-days-by-john-kobbe-2/ My Early Tektronix Days] by John Kobbe
-* http://www.vintagetek.org/my-early-tektronix-days-by-john-kobbe-2/
+* [https://vintagetek.org/oscilliscope-patents/ Oscilloscope Patents] by John Kobbe
-* [http://w140.com/US2930986.pdf US Patent 2,930,986: J. R. Kobbe, "Distributed Amplifier"]
+* [https://www.vintagetek.org/wp-content/uploads/2011/10/Tek-series-500-development.pdf How the Tektronix Series 500 Scopes Came Together] by John Kobbe
+* [https://tek-retirees.com/wp-content/uploads/simple-file-list/Newsletters/2013_05_may.pdf Death Notice in May 2013 Tek Retirees newsletter]
+{{Designer|John Kobbe}}
+{{Patents|John Kobbe}}
 ==Photos==