G: Difference between revisions
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|introduced=1955 | |introduced=1955 | ||
|discontinued=1971 | |discontinued=1971 | ||
|designers=John Kobbe | |||
|manuals= | |manuals= | ||
* [[Media:Tek type g.pdf|Tektronix Type G Manual]] | * [[Media:Tek type g.pdf|Tektronix Type G Manual]] | ||
* [[Media: | * [[Media:tek_type_53g.pdf|Tektronix Type 53G Manual]] | ||
* [[Media:tek_type_g_fcp.pdf|Tektronix Type G Factory Calibration Procedure]] (OCR) | * [[Media:tek_type_g_fcp.pdf|Tektronix Type G Factory Calibration Procedure]] (OCR) | ||
* [[Media:Tek type g cal outline.pdf|Tektronix Type G Calibration Outline]] (OCR) | * [[Media:Tek type g cal outline.pdf|Tektronix Type G Calibration Outline]] (OCR) | ||
}} | }} | ||
The '''Tektronix Type G''' is a plug-in differential amplifier for [[500-series scopes]]. | The '''Tektronix Type G''' is a plug-in differential amplifier for [[500-series scopes]]. | ||
It was designed by [[John Kobbe]]. | |||
Unlike the [[D|Type D]], the Type G is optimized for RF, achieving only a 100 to 1 common-mode rejection ratio but maintaining it all the way to 20 MHz. | Unlike the [[D|Type D]], the Type G is optimized for RF, achieving only a 100 to 1 common-mode rejection ratio but maintaining it all the way to 20 MHz. | ||
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{{MissingSpecs}} | {{MissingSpecs}} | ||
==Links== | |||
{{Documents|Link=G}} | |||
==Pictures== | ==Pictures== | ||
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</gallery> | </gallery> | ||
==Components== | |||
{{Parts|G}} | {{Parts|G}} | ||
[[Category:500 series plugins]] | [[Category:500 series plugins]] | ||
[[Category:Differential amplifiers]] | [[Category:Differential amplifiers]] | ||
Latest revision as of 22:16, 9 March 2024
The Tektronix Type G is a plug-in differential amplifier for 500-series scopes. It was designed by John Kobbe.
Unlike the Type D, the Type G is optimized for RF, achieving only a 100 to 1 common-mode rejection ratio but maintaining it all the way to 20 MHz. Unlike "comparator" plug-ins such as the Type W and Type Z, the Type G does not contain an internal precision variable voltage source. It is for measuring the difference between two externally applied input signals. Its maximum sensitivity is 50 mV/div. It has seven tubes. (The early, slower 53G has five tubes.)
Its name changed twice. Type 53G was introduced in March 1955 along with the 541/545, but it was only specified to 10 MHz in a 535, and its performance in a fast mainframe was not documented. When the mainframe cabinet styles were revamped in August 1956, the Types 53A, 53B, 53C and 53G were all upgraded (sped up) and renamed; Type 53G became Type 53/54G. It was the only early plug-in that did not go through the awkward "53x/54x" phase. In 1959 it became Type G with no further change in design. It was dropped after 1970.
K, L, and T are tied for longest production life, at 16 years. B, D, and G are next at 15 years.
Types G and K are the only letter-series plugins where the Gain vernier is not concentric with the step attenuator.
Key Specifications
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Links
Documents Referencing G
| Document | Class | Title | Authors | Year | Links |
|---|---|---|---|---|---|
| IBM 223-6725-2.pdf | Application Note | Tektronix oscilloscopes (IBM Customer Engineering Manual) | 1960 | 310 • 310A • 531 • 531A • 535 • 535A • 545A • B • C • CA • D • G | |
| Tekscope 1972 V4 N5 Sep 1972.pdf | Article | A Practical Approach to Differential Amplifiers and Measurements | Fred Beckett | 1972 | 112 • 11A33 • 1A5 • 1A6 • 1A7 • 1A7A • 26A2 • 3A9 • 5A22N • 7A13 • 7A22 • AM502 • D • E • G • P6055 • P6046 • W • Z |
| Tekscope 1972 V4 N6 Nov 1972.pdf | Article | Differential Amplifiers and Measurements, Part 2 | Fred Beckett | 1972 | 112 • 11A33 • 1A5 • 1A6 • 1A7 • 1A7A • 26A2 • 3A9 • 5A22N • 7A13 • 7A22 • AM502 • D • E • G • P6055 • P6046 • W • Z |
Pictures
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Type G with original box
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Photo courtesy of Dan Wilson (Hideaway Studio)
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Photo courtesy of Dan Wilson (Hideaway Studio)
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Photo courtesy of Dan Wilson (Hideaway Studio)
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53G Schematic
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Type G schematic
Components
Some Parts Used in the G
| Part | Part Number(s) | Class | Description | Used in |
|---|---|---|---|---|
| 12AT7 | 154-0039-00 | Vacuum Tube (Dual Triode) | dual high-gain triode | 161 • 180 • 310 • 310A • 315 • 316 • 360 • 502 • 502A • 511A • 512 • 513 • 513D • 514 • 514AD • 514D • 516 • 524 • 529 • RM529 • 544 • 546 • 547 • 556 • 565 • 570 • 3A2 • 75 • 3A75 • 1M1 • A • B • C • G • H • K • L • ML • M • N • K • R • S • Z • Keithley 610B |
| 12AU6 | 154-0040-00 | Vacuum Tube (Pentode) | RF pentode | 81 • 112 • 1L10 • 1L20 • 1L60 • 3L10 • 512 • 556 • 575 • 545 • 547 • 549 • 581 • 585 • A • B • C • G • K • H • L • ML • M • N • O • R • S • Z |
| 6AK5 | 154-0014-00 • 154-0206-00 • 154-0084-00 | Vacuum Tube (Pentode) | RF pentode | B • C • CA • G • K • L • ML • S • Z • 517 • 517A • 524 |