3A1: Difference between revisions
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{{Plugin Sidebar | {{Plugin Sidebar| | ||
manufacturer=Tektronix |series=560-series scopes |type=3A1 | | |||
summary=Dual trace amplifier plugin | | summary=Dual trace amplifier plugin | | ||
image= | image=3a1 front2.jpg | | ||
caption=Type | caption=Type 3A1 front view | | ||
designers= | | |||
introduced=1962 | | introduced=1962 | | ||
discontinued= | discontinued=1968 | | ||
manuals= | manuals= | ||
* [http://bama.edebris.com/download/tek/3a1/3a1.djvu Tektronix 3A1 Manual ( | * [[Media:070-343.pdf|Tektronix 3A1 Manual 070-343]] (PDF) | ||
* [[Media:070-0343-01.pdf|Tektronix 3A1 Manual 070-0343-01]] (PDF) | |||
* [http://bama.edebris.com/download/tek/3a1/3a1.djvu Tektronix 3A1 Manual @ BAMA] (DJVU) | |||
* [[Media:Tek 3a1 fcp nov 1963.pdf|Tektronix 3A1 Factory Calibration Procedure, November 1963]] | |||
}} | }} | ||
The '''Tektronix Type 3A1''' is a dual-trace amplifier plug-in | The '''Tektronix Type 3A1''' is a 10 MHz dual-trace amplifier plug-in for [[560-series scopes]], [[introduced in 1962]]. | ||
for [[560-series scopes]] | |||
Deflection factor | {{BeginSpecs}} | ||
{{Spec | Bandwidth | 10 MHz }} | |||
{{Spec | Risetime | 35 ns }} | |||
{{Spec | Input impedance | 1 MΩ // 47 pF }} | |||
{{Spec | Deflection factor | 10 mV/div to 10 V/div, 1−2−5 sequence}} | |||
{{EndSpecs}} | |||
==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. | |||
==Pictures== | ==Pictures== | ||
<gallery> | <gallery> | ||
3a1 front2.jpg |Front view | |||
3a1 right2.jpg | Right side | |||
3a1 right.jpg | Right side | |||
3a1 top.jpg | Top view | |||
3a1 bottom.jpg | Bottom view | |||
3a1 input amp and switching.png|input amplifier schematic | |||
</gallery> | </gallery> | ||
[[Category:560 series plugins]] | [[Category:560 series plugins]] | ||
Revision as of 10:00, 20 August 2021
The Tektronix Type 3A1 is a 10 MHz dual-trace amplifier plug-in for 560-series scopes, introduced in 1962.
Key Specifications
| Bandwidth | 10 MHz |
|---|---|
| Risetime | 35 ns |
| Input impedance | 1 MΩ // 47 pF |
| Deflection factor | 10 mV/div to 10 V/div, 1−2−5 sequence |
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.
Pictures
-
Front view
-
Right side
-
Right side
-
Top view
-
Bottom view
-
input amplifier schematic
