Patent US 3584174A

Patent number	US 3584174A (click link for details and documents via Google Patents)
Title	Push-button switch apparatus having cam actuated switch contacts and selective illumination means
Inventors	Tony Sprando, Peter S Winkelmann
Company	Tektronix Inc
Filing date	1969-06-09
Grant date	1971-06-08

Cited By:

Patent	Title	Inventors	Assignee	Granted
Patent US 4013855A	Modular pushbutton switch	John E. Reichen • Richard Neff Meyer • Gary W. Reed	Tektronix Inc	1977-03-22

Related products:

Manufacturer	Model	Description	Introduced	Designers
Tektronix	067-0587-00	7000 Series Calibration Fixture	(?)
Tektronix	067-0587-01	7000 Series Calibration Fixture	(?)
Tektronix	067-0587-02	7000 Series Calibration Fixture	1979	Art Metz
Tektronix	067-0587-10	7000 Series Calibration Fixture	(?)
Tektronix	7A11	250 MHz FET-probe amplifier	1969	John Addis • Ron Peltola • Glenn Bateman
Tektronix	7A12	120 MHz dual-channel amplifier	1969	Roy Hayes
Tektronix	7A13	100 MHz Differential Comparator	1969	Bill DeVey
Tektronix	7A14	120 MHz current probe amplifier	1969	Hans Springer
Tektronix	7A16	150 MHz vertical amplifier	1969	Jim Woo
Tektronix	7A16P	150/200 MHz vertical amplifier	1978
Tektronix	7A22	1 MHz differential amplifier	1969	Val Garuts
Tektronix	7A42	350 MHz four-channel logic triggered amplifier	1984	Kirk Wimmer
Tektronix	7B42N	Dual timebase	(not released)
Tektronix	7B50	100 MHz Timebase	1969	Murlan Kaufman
Tektronix	7B51	100 MHz Timebase	1969	Murlan Kaufman
Tektronix	7B52	100 MHz Dual Timebase	1970	Bill DeVey
Tektronix	7B53A	100 MHz dual timebase	1973
Tektronix	7B70	200 MHz Timebase	1969	Murlan Kaufman
Tektronix	7B71	200 MHz Delaying Timebase	1969	Murlan Kaufman
Tektronix	7B92	500 MHz dual timebase	1971	Bill DeVey • Val Garuts
Tektronix	7B92A	500 MHz dual timebase	1976	Les Larson • Bruce Hofer
Tektronix	7D10	digital events delay	1976
Tektronix	7D11	digital delay	1972	Carlo Infante • Bob Beville • Bruce Hofer
Tektronix	7D12	digital meter plugin	1974
Tektronix	7D15	225 MHz frequency counter	1972	Art Metz • Roger McCoy
Tektronix	7D20	70 MHz dual-channel digitizer	1982
Tektronix	7F10	750 MHz optical input amplifier	1987	Wanda Yantis
Tektronix	7L12	1.8 GHz Spectrum Analyzer	1971	Morris Engelson • Linley Gumm • Gene Kauffman • Larry Lockwood • Gordon Long • Steve Morton • Paul Parks • Fred Telewski • Neal Broadbent • Jack Doyle • Al Huegli • Steve Skidmore • Leighton Whitsett • Judy Hanson • Robert Holmes • Carolyn Moore • Rena Randle
Tektronix	7L13	1.8/2.5 GHz Spectrum Analyzer	1974	Fred Telewski
Tektronix	7L14	1.8 GHz Spectrum Analyzer with digital storage	1982
Tektronix	7L18	18 (60) GHz Spectrum Analyzer	1978	Linley Gumm • Bob Bales • Russell Brown • George Maney • Carlos Beeck • James Wolf • Dave Shores • Philip Snow • Wesley Hayward • Jack Reynolds • Steve Morton • Don Kirkpatrick • Dennis Smith • Al Huegli
Tektronix	7L5	5 MHz Spectrum Analyzer	1976	Fendall Winston • Craig Bryant • Steve Morton • Bill Benedict • Don Kirkpatrick • Steve Skidmore • Carlos Beeck • Morris Engelson
Tektronix	7M13	Readout Unit	1974
Tektronix	7S11	Sampling plugin	1969	George Frye • Al Zimmerman • Gene Cowan
Tektronix	7S12	Time Domain Reflectometer / Sampler	1971
Tektronix	7T11	Sampling Sweep Unit	1969	George Frye • Al Zimmerman • Gene Cowan

This patent describes the back-lit switches that Tek introduced at the end of the 1960s for the 7000-series scopes/plugins, and other instruments.

See also the cam switch patent 3,562,464 referenced in 3,584,174 as the copending application 765,597 by H. Vollum et al for using similar low-inductance spring contacts on PCBs.