Gene Andrews
Roland Eugene Andrews (b. 2 July 1931 – d. 22 December 2020) worked at Tektronix in Beaverton, Oregon from 1962 to 1998.
From Tekscope Vol.4 No.2, March 1972, p.5:
During his ten years at Tek, Gene has made many fine contributions to the product line. He began by working on the 10A2 amplifier, and was then responsible for the vertical amplifier design of the 453 Portable. He later was project engineer on the 647A/10A2A to bring this up to a 100-MHz instrument. When the 7000-Series was conceived he worked out the horizontal amplifier for the 7704 and designed the high-efficiency power supply for the unit; the first used in a TEKTRONIX laboratory oscilloscope.
Gene received his BSEE from Oregon State in 1954 and completed his M.S. at Stanford in 1956.
Documents Authored by Gene Andrews
| Document | Page | Class | Title | Author(s) | Year | Refers to |
|---|---|---|---|---|---|---|
| Tekscope 1972 V4 N2 Mar 1972.pdf | 2 | Article | A Nanosecond Portable Oscilloscope | Gene Andrews | 1972 | 485 |
| Tekscope 1974 V6 N2.pdf | 3 | Article | A 1000 cm/μs Storage Oscilloscope | Gene Andrews | 1974 | 7633 |
Products by Gene Andrews
| Manufacturer | Model | Description | Designers | Introduced |
|---|---|---|---|---|
| Tektronix | 10A2 | 50 MHz dual channel amplifier plugin | Gene Andrews | 1963 |
| Tektronix | 453 | 50 MHz portable dual-trace scope | Oliver Dalton • Gene Andrews | 1965 |
| Tektronix | 7704 | 150 MHz non-storage mainframe | Gene Andrews • Bob Shand | 1969 |
| Tektronix | 485 | 350 MHz portable scope | John Addis • Wink Gross • Gene Andrews • Glenn Bateman • Ron Peltola • Bob Firth • Murlan Kaufman • Bob White • Keith Taylor • Dick Troberg | 1972 |
| Tektronix | 7633 | 100 MHz multi-mode storage mainframe | Gene Andrews | 1974 |
| Tektronix | 7104 | 1 GHz mainframe with MCP CRT | Val Garuts • Gene Andrews • Hans Springer • John Addis • Wink Gross • Art Metz • Aris Silzars • Conrad Odenthal • Dave Morgan | 1978 |
| Tektronix | R7103 | 1 GHz non-storage mainframe | Val Garuts • Gene Andrews • Hans Springer • John Addis • Wink Gross • Art Metz • Aris Silzars • Conrad Odenthal • Dave Morgan | 1985 |
Components by Gene Andrews
| Model | Class | Description | Designers | Used in |
|---|---|---|---|---|
| 155-0022-00 | Monolithic integrated circuit | analog multiplexer | Gene Andrews | 147 • 148 • 149 • 335 • 468 • 1430 • 1441 • 1461 • 1900 • 1910 • 2220 • 2221 • 2230 • 5223 • 5403 • 5440 • 5441 • 5443 • 5444 • 5A38 • 7313 • 7403N • 7503 • 7504 • 7514 • 7603 • AN/USM-281C • 7613 • 7623 • 7623A • 7633 • 7704 • R7704 • 7704A • 7834 • 7844 • 7854 • R7912 • 7912AD • 7912HB • 7904 • R7903 • 7904A • 7934 • 7A12 • 7A18 • 7A18A • 7A18N • 7B52 • 7B53N • 7D10 • 7D11 • 7D12 • NT-7000 • P7001 |
| 155-0067-02 | Monolithic integrated circuit | SMPS controller | Joe Burger • Gene Andrews | 7704A • 7834 • 7844 • 7854 • 7904 • R7903 • 7904 • 7904A • 7934 • R7912 • 7912AD • 7912HB • 7934 • 7104 • R7103 • 308 • 434 • 485 • 690 • P7001 |
Patents by Gene Andrews
| Page | Office | Number | Title | Inventors | Company | Filing date | Grant date |
|---|---|---|---|---|---|---|---|
| Patent US 3281702A | US | 3281702A | Wide band amplifier having variable gain | Gene Andrews | Tektronix Inc | 1963-02-18 | 1966-10-25 |
| Patent US 3421102A | US | 3421102A | Direct coupled temperature compensated amplifier | Gene Andrews | Tektronix Inc | 1965-06-10 | 1969-01-07 |
| Patent US 3369173A | US | 3369173A | Attenuator apparatus | Gene Andrews | Tektronix Inc | 1965-11-19 | 1968-02-13 |
| Patent US 3596165A | US | 3596165A | Converter circuit having a controlled output | Gene Andrews | Tektronix Inc | 1969-07-24 | 1971-07-27 |
| Patent US 3795834A | US | 3795834A | Oscilloscope having external trigger display mode | Gene Andrews • Robert Edward White | Tektronix Inc | 1972-07-05 | 1974-03-05 |
| Patent US 3922585A | US | 3922585A | Feedback amplifier circuit | Gene Andrews | Tektronix Inc | 1974-01-17 | 1975-11-25 |
| Patent US 4482861A | US | 4482861A | Waveform measurement and display apparatus | Lee J. Jalovec • Gene Andrews | Tektronix Inc | 1982-06-14 | 1984-11-13 |
| Patent US 4495586A | US | 4495586A | Waveform acquisition apparatus and method | Gene Andrews | Tektronix Inc | 1982-07-29 | 1985-01-22 |
| Patent US 4527117A | US | 4527117A | Signal processing system employing charge transfer devices | Dave Morgan • Gene Andrews | Tektronix Inc | 1982-10-18 | 1985-07-02 |
| Patent US 4551636A | US | 4551636A | Wide bandwidth signal coupling circuit having a variable voltage-level shift from input to output | Gene Andrews • John Addis | Tektronix Inc | 1983-05-25 | 1985-11-05 |
| Patent US 5796308A | US | 5796308A | Differential attenuator common mode rejection correction circuit | Garry N. Link • Gene Andrews | Tektronix Inc | 1996-06-28 | 1998-08-18 |
| Patent US 6847199B2 | US | 6847199B2 | Capturing both digital and analog forms of a signal through the same probing path | Roy Kaufman • Gene Andrews • Colin L. Shepard • William R. Mark • Les Larson • Donald F. Murray | Tektronix Inc | 2003-02-11 | 2005-01-25 |