Patent US 3719788A

Patent number	US 3719788A (click link for details and documents via Google Patents)
Title	Switch having ganged contacts mounted on opposite sides of circuit board
Inventors	Ken Holland, Tony Sprando
Company	Tektronix Inc
Filing date	1971-02-04
Grant date	1973-03-06

Cited By:

Patent	Title	Inventors	Assignee	Granted
Patent US 3900711A	Electrical contactor assembly for high frequency applications	Ken Holland	Tektronix Inc	1975-08-19

Related products:

Manufacturer	Model	Description	Introduced	Designers
Tektronix	465	Portable 100 MHz dual-trace scope	1972	Leon Orchard • Luis Navarro • Bob Shand • Jim Hinze • Frank Dewater • Pete Janowitz • Dave Laib • Al Schamel • Bert tenKate • Ken Holland • Bill Mark • George Ermini • Dennis Braatz
Tektronix	475	Portable 200 MHz dual-trace scope	1972	Leon Orchard • Luis Navarro • Bob Shand • Jim Hinze • Jim Godwin • Les Larson • Steve Tosh • Jim Woo • Ken Holland • Bill Mark • George Ermini • Dennis Braatz
Tektronix	5A38	35 MHz dual channel vertical plugin	1975
Tektronix	5A45	60 MHz single channel vertical plugin	1975
Tektronix	7A15	80 MHz vertical amplifier	1970	Tom Rousseau
Tektronix	7A16A	225 MHz vertical amplifier	1973	Tom Rousseau
Tektronix	7A18	75 MHz dual-channel amplifier	1971	Tom Rousseau
Tektronix	7A19	600 MHz amplifier	1971	Thor Hallen • Val Garuts
Tektronix	7A24	400 MHz dual channel vertical amplifier	1974	Tom Rousseau
Tektronix	7A26	200 MHz dual-channel amplifier	1974	Tom Rousseau
Tektronix	7D15	225 MHz frequency counter	1972	Art Metz • Roger McCoy
Tektronix	PG506	1 MHz calibration generator	1974

This patent describes a cam switch having contacts on both sides of the PCB, with the bottom part driven from the cam on top via a small actuator. It is used in the attenuators of the 465, 475, 5A38, 5A45, 7A15, 7A16A, 7A18, 7A19, 7A24, 7A26, in the 7D15, and others.

Pictures

7A18 attenuator bottom view
7D15: Cam switch with contacts on both sides of the PCB
7D15
7D15
7D15: bottom-side contacts
7D15: through-board pins