Patent US 3900711A: Difference between revisions
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|Grant date=1975-08-19 | |Grant date=1975-08-19 | ||
|Cites=Patent US 3562464A;Patent US 3719788A;Patent US 3753170A | |Cites=Patent US 3562464A;Patent US 3719788A;Patent US 3753170A | ||
|Links=465;475;5A38;5A45;7A15;7A16A;7A18;7A19;7A24;7A26;7D15; | |Links=465;475;5A38;5A45;7A15;7A16A;7A18;7A19;7A24;7A26;7D15;AM503; | ||
}} | }} | ||
This patent describes the fork-style isolated contact used in many Tek instruments, mostly driven by [[cam switch]]es. | This patent describes the fork-style isolated contact used in many Tek instruments, mostly driven by [[cam switch]]es. | ||
Latest revision as of 07:23, 19 August 2024
| Patent number | US 3900711A (click link for details and documents via Google Patents) |
|---|---|
| Title | Electrical contactor assembly for high frequency applications |
| Inventors | Ken Holland |
| Company | Tektronix Inc |
| Filing date | 1974-02-04 |
| Grant date | 1975-08-19 |
Cites:
| Patent | Title | Inventors | Assignee | Granted |
|---|---|---|---|---|
| Patent US 3562464A | Cam actuated switch having movable and fixed contacts on circuit board | Howard Vollum • Willem H Verhoef • Tony Sprando | Tektronix Inc | 1971-02-09 |
| Patent US 3719788A | Switch having ganged contacts mounted on opposite sides of circuit board | Ken Holland • Tony Sprando | Tektronix Inc | 1973-03-06 |
| Patent US 3753170A | Step attenuator apparatus having attenuator stages selectively connected in cascade by cam actuated switches | Ken Holland | Tektronix Inc | 1973-08-14 |
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 | AM503 | current probe amplifier | 1976 | Dale Dorando |
This patent describes the fork-style isolated contact used in many Tek instruments, mostly driven by cam switches.
Pictures
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7A18 attenuator, bottom view
