3A3: Difference between revisions
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|discontinued=1972 | |discontinued=1972 | ||
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* [[Media:070-408.pdf|Tektronix 3A3 Manual (early)]] | * [[Media:070-408.pdf|Tektronix 3A3 Manual (early)]]<br /><small>[https://bama.edebris.com/download/tek/3a3/3a3early.djvu Alternate - DjVu @ BAMA]</small> | ||
* [[Media:070-0787-00.pdf|Tektronix 3A3 Manual (late)]] | * [[Media:070-0787-00.pdf|Tektronix 3A3 Manual (late)]]<br /><small>[https://bama.edebris.com/download/tek/3a3/3a3late.djvu Alternate - DjVu @ BAMA]</small> | ||
* [[Media:Tek 3a3 fcp june 1968.pdf|Tektronix 3A3 Factory Calibration Procedure, June 1968]] | * [[Media:Tek 3a3 fcp june 1968.pdf|Tektronix 3A3 Factory Calibration Procedure, June 1968]] | ||
* [[Media:Tek 3a3 cal outline.pdf|Tektronix 3A3 Calibration Outline ( | * [[Media:Tek 3a3 cal outline.pdf|Tektronix 3A3 Calibration Outline]] (OCR) | ||
}} | }} | ||
The '''Tektronix 3A3''' is a dual-trace differential amplifier plug-in for [[560-series scopes]]. | The '''Tektronix 3A3''' is a dual-trace differential amplifier plug-in for [[560-series scopes]]. | ||
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</gallery> | </gallery> | ||
==Components== | |||
{{Parts|3A3}} | {{Parts|3A3}} | ||
[[Category:560 series plugins]] | [[Category:560 series plugins]] |
Revision as of 12:50, 17 November 2023
The Tektronix 3A3 is a dual-trace differential amplifier plug-in for 560-series scopes. It was designed by Roy Hayes.
Key Specifications
Bandwidth | 500 kHz or 5 kHz (switch-selectable) |
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Deflection | 0.1 mV/Div to 10 V/Div, in 1−2−5 steps |
Input impedance | 1 MΩ // 47 pF |
Internals
Early 3A3s use a 7586 Nuvistor for the front end cathode follower. Serial numbers 4990 and up use a dual JFET.
Pictures
Older version (below SN 4990, Nuvistor in input stage)
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3A3 Front
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3A3 Right
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3A3 Left
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3A3, Nuvistor in Input Stage
Newer version (from SN 4990 up, FET in input stage)
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3A3 Front
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3A3 Right
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3A3 Left
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3A3 Top
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3A3 Bottom
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3A3, Dual JFET in Input Stage