3A1: Difference between revisions
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{{Plugin Sidebar | {{Plugin Sidebar | ||
|manufacturer=Tektronix | |||
summary= | |series=560-series scopes | ||
image=3a1 | |type=3A1 | ||
caption=Type 3A1 front view | |summary=10 MHz dual-trace amplifier plug-in | ||
|image=Tek 3a1 front.jpeg | |||
introduced=1962 | | |caption=Type 3A1 front view | ||
discontinued=1968 | | |introduced=1962 | ||
manuals= | |discontinued=1968 | ||
* [ | |manuals= | ||
* [[Media:070-343.pdf|Tektronix 3A1 Manual 070-343]] | |||
* [[Media:070-0343-01.pdf|Tektronix 3A1 Manual 070-0343-01]] | |||
* [https://bama.edebris.com/download/tek/3a1/3a1.djvu Tektronix 3A1 Manual] (DjVu @ BAMA) | |||
* [[Media:Tek 3a1 fcp nov 1963.pdf|Tektronix 3A1 Factory Calibration Procedure, November 1963]] | |||
}} | }} | ||
The '''Tektronix | The '''Tektronix 3A1''' is a 10 MHz dual-trace amplifier plug-in for [[560-series scopes]], [[introduced in 1962]]. It is compatible with all the scopes in the 560 series, other than the [[560]] itself, and also with the [[129]] four bay enclosure and power supply. | ||
{{BeginSpecs}} | {{BeginSpecs}} | ||
{{Spec | Bandwidth | 10 MHz }} | {{Spec | Bandwidth | 10 MHz }} | ||
{{Spec | Risetime | {{Spec | Risetime | 35 ns }} | ||
{{Spec | | {{Spec | Deflection | 10 mV/div to 10 V/div, 1−2−5 sequence}} | ||
{{Spec | | {{Spec | Input impedance | 1 MΩ // 47 pF }} | ||
{{EndSpecs}} | {{EndSpecs}} | ||
==Links== | |||
{{Documents|Link=3A1}} | |||
==Internals== | ==Internals== | ||
The input signal passes through compensated attenuators and then into a | The input signal passes through compensated attenuators and then into a cathode-follower stage made of two [[7586]] Nuvistor tubes. | ||
cathode-follower stage made of two [[7586]] Nuvistor tubes. | |||
Channel switching in ALTERNATE mode is done using diodes. | |||
The output stage that drives the vertical deflection plates of the scope uses a pair of [[8233]] frame grid power pentode tubes. | |||
Tektronix added a 260 ns delay line to the 3A1 to make the [[3A6]]. | |||
==Pictures== | ==Pictures== | ||
<gallery> | <gallery> | ||
3a1 front2.jpg |3A1 Front | |||
3a1 right2.jpg |3A1 Right | |||
3a1 right.jpg |3A1 Right | |||
3a1 top.jpg |3A1 Top | |||
3a1 bottom.jpg |3A1 Bottom | |||
3a1 input amp and switching.png|3A1 Input Amplifier Schematic | |||
</gallery> | </gallery> | ||
==Components== | |||
{{Parts|3A1}} | |||
[[Category:560 series plugins]] | [[Category:560 series plugins]] | ||
Latest revision as of 04:47, 29 November 2023
The Tektronix 3A1 is a 10 MHz dual-trace amplifier plug-in for 560-series scopes, introduced in 1962. It is compatible with all the scopes in the 560 series, other than the 560 itself, and also with the 129 four bay enclosure and power supply.
Key Specifications
| Bandwidth | 10 MHz |
|---|---|
| Risetime | 35 ns |
| Deflection | 10 mV/div to 10 V/div, 1−2−5 sequence |
| Input impedance | 1 MΩ // 47 pF |
Links
Documents Referencing 3A1
- (no results)
Internals
The input signal passes through compensated attenuators and then into a cathode-follower stage made of two 7586 Nuvistor tubes.
Channel switching in ALTERNATE mode is done using diodes. The output stage that drives the vertical deflection plates of the scope uses a pair of 8233 frame grid power pentode tubes.
Tektronix added a 260 ns delay line to the 3A1 to make the 3A6.
Pictures
-
3A1 Front
-
3A1 Right
-
3A1 Right
-
3A1 Top
-
3A1 Bottom
-
3A1 Input Amplifier Schematic
