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Revision as of 14:30, 20 August 2021

Lester Larson (? – ?) worked at Tektronix as a design engineer from the early 1960s through the 2000s.

He designed the 10A1.

He later worked on the 7000 series, including the 7904 and 7854.

After that, he worked on the 11000 series. The SDI interface that allows 11000 series mainframes to control and test 11000 series plug-in was designed by Lester Larson.

Products by Les Larson

Model Class Description Designers Introduced
10A1 Plug-in Differential amplifier plug-in Les Larson 1965
7904 Oscilloscope 500 MHz non-storage mainframe Val Garuts Thor Hallen John McCormick Les Larson Bill DeVey Bill Peek Hans Springer Joe Burger Joel Swanno Ken Hawken 1971
475 Oscilloscope Portable 200 MHz dual-trace scope Leon Orchard Luis Navarro Bob Shand Jim Hinze Jim Godwin Les Larson Steve Tosh Jim Woo Ken Holland Bill Mark George Ermini Dennis Braatz 1972
R7903 Oscilloscope 500 MHz non-storage mainframe Val Garuts Thor Hallen John McCormick Les Larson Bill DeVey Bill Peek Hans Springer Joe Burger Joel Swanno Ken Hawken 1974
7B50A Plug-in 100 MHz timebase Les Larson Bruce Hofer Paul Farley Art Metz 1976
7B80 Plug-in 400 MHz timebase Les Larson Bruce Hofer Paul Farley Art Metz 1976
7B92A Plug-in 500 MHz dual timebase Les Larson Bruce Hofer 1976
7B85 Plug-in 400 MHz delaying timebase Les Larson Bruce Hofer Paul Farley Art Metz 1976
475A Oscilloscope Portable 250 MHz dual-trace scope Leon Orchard Luis Navarro Bob Shand Jim Hinze Jim Godwin Les Larson Steve Tosh Jim Woo Ken Holland Bill Mark George Ermini Dennis Braatz 1977
7854 Oscilloscope 400 MHz waveform-processing scope Tom Rousseau Les Larson Jack Collins Ellen Deleganes Jim Schlegel Gary Fladstol Val Garuts Tim Holte Burt Johnson Bruce Kingsland Wes Kosta Jim Tallman Kirk Wimmer 1980

Components by Les Larson

Model Class Description Designers Used in
155-0009-00 Monolithic integrated circuit horizontal lockout logic Les Larson 7504 7514 7704 7704A R7704 7834 7844 7854 7904 R7903 7904A 7934 7104
155-0010-00 Monolithic integrated circuit chop divider and blanking Les Larson 7504 7514 7704 R7704 7704A 7834 7854 7904 R7903 7904A 7934 7104
155-0011-00 Monolithic integrated circuit clock and chop blanking Les Larson 485 7313 7403N R7403N 7503 7504 7514 7603 AN/USM-281C 7613 7623 7623A 7633 7704 R7704 7704A 7834 7844 7854 7904 7904A R7903 R7912 7912AD 7912HB 7934 7104 R7103 AN/USM-281C
155-0012-00 Monolithic integrated circuit Z Axis Logic Les Larson 485 7504 7514 7704 R7704 7704A 7834 7844 7854 7904 R7903 7904A R7912 7934 7912AD 7912HB 7104 R7103
155-0013-00 Monolithic integrated circuit horizontal chop and alt. binary Les Larson 7504 7514 7704 R7704 7704A 7834 7854 7904 7904A R7903 7934 7104
155-0018-00 Monolithic integrated circuit zeros logic control Les Larson 7000 series readout system 7934
155-0019-00 Monolithic integrated circuit decimal point and spacing control Les Larson 7000 series readout system
155-0020-00 Monolithic integrated circuit output assembler Les Larson 7000 series readout system
155-0021-00 Monolithic integrated circuit timing generator Les Larson 7000 series readout system 7854 7934

US Patents

  • 3394316 "Differential Amplifier Having Common Base Output Stage of Very High Output Impedance"
  • 3663832 "Delay Pickoff Circuit"
  • 3857059 "Oscilloscope Sweep System with Two Sweep Generators Having Speed Rate Switches and Sweep Mode Switches Operated by a Control Knob"
  • 6781391 "Multi-channel, low input capacitance signal probe and probe head"
  • 6847199 "Capturing both digital and analog forms of a signal through the same probing path"