Einar Traa
Einar Oddbjorn Traa (b. March 23, 1943 in Aal, Norway – ?) received BSc. and MSc. degrees from Oregon State University, Corvallis, in 1966 and 1968, respectively. He joined Tektronix in 1967.
Publications
- An Integrated Analog Multiplier Circuit. Master Thesis, Oregon State University, 1968 / Alternate Copy
- An Integrated Function Generator with Two-Dimensional Electronic Programming Capability. IEEE JSSC Vol. SC-10, No.6, Dec 1975]
- ...
Products
- 155-0091-00 (M095A) channel switch / HF amplifier
- 155-0168-00 (H126) hybrid amplifier using M102
- 203-0089-90 (M089) vertical output amplifier
- 203-0102-90 (M102) vertical output amplifier
- M176
- ...
Products by Einar Traa
Components by Einar Traa
| Model | Class | Description | Designers | Used in |
|---|---|---|---|---|
| 155-0032-00 | Monolithic integrated circuit | variable-gain transconductance amplifier (voltage in, current out) | Roy Hayes • Einar Traa | 335 • 464 • 465 • 465B • 466 • 475 • 475A • 475M • 634 • 650 • 651 • 652 • 653 • 655 • 656 • 670 • 671 • 7A12 • 475 • FG504 • 1440 • 1460 • 1480 • 1481 • 1482 • 1485 |
| 155-0091-00 | Monolithic integrated circuit | channel switch / HF amplifier | Einar Traa • Jim Woo | 475 • 475A • 475M |
| 155-0168-00 | Hybrid integrated circuit | amplifier | Einar Traa | 475A |
| 155-0217-00 | Monolithic integrated circuit | variable-gain transconductance amplifier | Roy Hayes • Einar Traa | 335 • 475 • 7D20 • FG504 |
| 203-0089-90 | Monolithic integrated circuit | vertical output amplifier | Jim Cavoretto • Einar Traa | 155-0077-00 • 155-0115-00 |
| 203-0102-90 | Monolithic integrated circuit | vertical output amplifier | Einar Traa | 155-0168-00 |
| M176 | Monolithic integrated circuit | dual-channel vertical preamp | Einar Traa |
Patents by Einar Traa
| Page | Office | Number | Title | Inventors | Company | Filing date | Grant date |
|---|---|---|---|---|---|---|---|
| Patent US 3982115A | US | 3982115A | Electronically programmable function generator | Einar Traa | Tektronix Inc | 1975-01-31 | 1976-09-21 |
| Patent US 4267516A | US | 4267516A | Common-emitter fT doubler amplifier employing a feed forward amplifier to reduce non-linearities and thermal distortion | Einar Traa | Tektronix Inc | 1979-08-03 | 1981-05-12 |
| Patent US 4714872A | US | 4714872A | Voltage reference for transistor constant-current source | Einar Traa | Tektronix Inc | 1986-07-10 | 1987-12-22 |
| Patent US 4733218A | US | 4733218A | Combined digital-to-analog converter and latch memory circuit | Einar Traa | Tektronix Inc | 1986-07-18 | 1988-03-22 |
| Patent US 4712087A | US | 4712087A | Analog-to-digital converter error correction circuit | Einar Traa | Tektronix Inc | 1987-02-09 | 1987-12-08 |
| Patent US 4774498A | US | 4774498A | Analog-to-digital converter with error checking and correction circuits | Einar Traa | Tektronix Inc | 1987-03-09 | 1988-09-27 |
| Patent US 4794275A | US | 4794275A | Multiple phase clock generator | Einar Traa | Tektronix Inc | 1987-09-17 | 1988-12-27 |
| Patent US 4797586A | US | 4797586A | Controllable delay circuit | Einar Traa | Tektronix Inc | 1987-11-25 | 1989-01-10 |
| Patent US 4866314A | US | 4866314A | Programmable high-speed digital delay circuit | Einar Traa | Tektronix Inc | 1988-09-20 | 1989-09-12 |
| Patent US 6222660 | US | 6222660 | Adaptive power supply for avalanche photodiode | Einar Traa | Tektronix Inc | 1998-06-09 | 2001-04-24 |
- Patent US 4267516 "Common-emitter fT doubler amplifier ..." describes Traa's "Traashcomp" amplifier design − see John Addis, Good Engineering and Fast Vertical Amplifiers, in Jim Williams (Ed.), Analog Circuit Design: Art, Science and Personalities (1991), p.117