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{{Oscilloscope Sidebar| | {{Oscilloscope Sidebar | ||
|manufacturer=Tektronix | |||
image=Tek-7912ad.jpg| | |series=7000-series scopes | ||
caption=Tektronix 7912AD with [[7A26]] and [[7B90P]] | | |model=7912 | ||
introduced=1973 | | |summary=500/750 MHz digitizer | ||
discontinued=1989 | | |image=Tek-7912ad.jpg | ||
|caption=Tektronix 7912AD with [[7A26]] and [[7B90P]] | |||
manuals= | |introduced=1973 | ||
'' | |discontinued=1989 | ||
|designers=Carlo Infante;Jim Cavoretto;Al Allworth;Don Roberts;Stu McNaughton;Walt Lowy;Ray Hayes;Ken Hawken;Bob Culter;Hal Cobb;Ed Ritz;Bo Janko | |||
|manuals= | |||
* ''see individual model pages'' | |||
}} | }} | ||
The '''Tektronix 7912''' | The '''Tektronix 7912''' is a series of high-speed digitizers that take one [[7000-series_plug-ins#Vertical plug-ins|7000-series vertical plug-in]] | ||
and one [[7000-series_plug-ins#Horizontal plug-ins|7000-series horizontal plug-in]]. The primary markets for the 7912 series were nuclear and laser research. | |||
The | |||
All 7912 models use the same internal CRT-based, digitizing [[scan converter]] tube ([[T7912]], 154-0698-00) that is not visible from the outside. | |||
The signal from the vertical plug-in deflects a writing beam through [[distributed deflection plates]]. | |||
The electrons hit a small flat rectangular solid state target, conceptually similar to the image sensor in a digital camera. | |||
The resolution of the target is 512×512, giving 512 points in the time domain and 9-bit linear quantization of the input voltage. | |||
With a [[7B92]] sweeping the whole X-axis in 5 ns, and the 7912 capturing 512 samples in that sweep, the 7912 performs the function of a 100 GSample/s A/D converter. | With a [[7B92]] sweeping the whole X-axis in 5 ns, and the 7912 capturing 512 samples in that sweep, the 7912 performs the function of a 100 GSample/s A/D converter. | ||
==7912 Series Models== | |||
* The '''[[R7912]]''', introduced in September 1973 (Ref.1), achieved a bandwidth of 500 MHz with a [[7A19]] vertical amplifier plug-in. | |||
== | * The '''[[7912AD]]''' (1978) had 500 MHz bandwidth and introduced a standard [[GPIB interface]]. | ||
The '''R7912''', introduced in September 1973 (Ref.1), achieved a bandwidth of 500 MHz with a [[7A19]] vertical amplifier plug-in. | * The '''[[7912HB]]''' (1987) extended bandwidth to 750 MHz (using a [[7A29P]] amplifier). | ||
The | |||
* The [[LM7912]] is a Tektronix R7912 modified by Lockheed Palo Alto Research Lab for extended bandwidth. | |||
==Project Staff== | |||
* [[Carlo Infante]], Program manager | |||
== | * [[Jim Cavoretto]], Project Engineer | ||
* [[Al Allworth]], [[Don Roberts]], and [[Stu McNaughton]], Electrical Engineers | |||
* [[Walt Lowy]], Engineering Technician | |||
* [[Ray Hayes]], [[Ken Hawken]], [[Bob Culter]], [[Hal Cobb]], [[Ed Ritz]], and [[Bo Janko]], CRT Engineering | |||
* [[Loyal Strom]], [[Helene Albright]] and [[Ken Nesvold]], Prototype Support | |||
* [[Doug Giesbers]], [[Larry Pearson]] and [[Phil Lloyd]], Mechanical Engineering | |||
* [[Nick Hughes]] and [[Ray Blohm]], Instrument Manufacturing | |||
==Links== | ==Links== | ||
{{PatentLinks|7912}} | |||
[[Category:7000 series digitizer mainframes]] | [[Category:7000 series digitizer mainframes]] | ||
[[Category:Scan converter based instruments]] | [[Category:Scan converter based instruments]] | ||
Latest revision as of 03:36, 8 June 2024
The Tektronix 7912 is a series of high-speed digitizers that take one 7000-series vertical plug-in and one 7000-series horizontal plug-in. The primary markets for the 7912 series were nuclear and laser research.
All 7912 models use the same internal CRT-based, digitizing scan converter tube (T7912, 154-0698-00) that is not visible from the outside. The signal from the vertical plug-in deflects a writing beam through distributed deflection plates. The electrons hit a small flat rectangular solid state target, conceptually similar to the image sensor in a digital camera. The resolution of the target is 512×512, giving 512 points in the time domain and 9-bit linear quantization of the input voltage. With a 7B92 sweeping the whole X-axis in 5 ns, and the 7912 capturing 512 samples in that sweep, the 7912 performs the function of a 100 GSample/s A/D converter.
7912 Series Models
- The R7912, introduced in September 1973 (Ref.1), achieved a bandwidth of 500 MHz with a 7A19 vertical amplifier plug-in.
- The 7912AD (1978) had 500 MHz bandwidth and introduced a standard GPIB interface.
- The 7912HB (1987) extended bandwidth to 750 MHz (using a 7A29P amplifier).
- The LM7912 is a Tektronix R7912 modified by Lockheed Palo Alto Research Lab for extended bandwidth.
Project Staff
- Carlo Infante, Program manager
- Jim Cavoretto, Project Engineer
- Al Allworth, Don Roberts, and Stu McNaughton, Electrical Engineers
- Walt Lowy, Engineering Technician
- Ray Hayes, Ken Hawken, Bob Culter, Hal Cobb, Ed Ritz, and Bo Janko, CRT Engineering
- Loyal Strom, Helene Albright and Ken Nesvold, Prototype Support
- Doug Giesbers, Larry Pearson and Phil Lloyd, Mechanical Engineering
- Nick Hughes and Ray Blohm, Instrument Manufacturing
Links
Patents that may apply to 7912
| Page | Title | Inventors | Filing date | Grant date | Links |
|---|---|---|---|---|---|
| Patent US 3748585A | Silicon diode array scan converter storage tube and method of operation | Robert G. Culter • Raymond Hayes • Emmanuel Sang | 1971-11-15 | 1973-07-24 | 7912 • T7912 • R7912 • 7912AD • 7912HB • Scan converter |
| Patent US 3796910A | Electron beam deflection system | Ed Ritz | 1972-08-04 | 1974-03-12 | 7912 • T7912 • R7912 • 7912AD • 7912HB |
| Patent US 3893036A | Precision function generator | Jim Cavoretto • Al Allworth • Carlo Infante | 1973-07-27 | 1975-07-01 | 7912 • T7912 • R7912 • 7912AD • 7912HB |
| Patent US 3970889A | Erasure means for charge storage device | Hal Cobb | 1973-11-21 | 1976-07-20 | 7912 • T7912 • Scan converter |