3A1S: Difference between revisions
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m (clean up, replaced: title=Tektronix → manufacturer=Tektronix |series=560-series scopes |type=, {{Plugin Sidebar 2 → {{Plugin Sidebar, series=560-series scopes → designers=) |
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* [http://w140.com/tek-561s.pdf Tektronix 561S / 3A1S / 3B1S Manual (PDF)] | * [http://w140.com/tek-561s.pdf Tektronix 561S / 3A1S / 3B1S Manual (PDF)] | ||
* [[Media:070-417.pdf|Tektronix 561S Manual]] | |||
}} | }} | ||
The '''Tektronix 3A1S''' is a vertical plug-in for the [[561#561S|561S]]. | The '''Tektronix 3A1S''' is a vertical plug-in for the [[561#561S|561S]]. | ||
Revision as of 13:44, 19 September 2023
The Tektronix 3A1S is a vertical plug-in for the 561S.
Key Specifications
| Deflection | from 10 mV/Div to 10 V/Div (in a 561S) |
|---|---|
| Bandwidth | 25 MHz |
| Rise time | 14 ns |
| Input impedance | 1 MΩ // 47 pF |
Internals
The input signal passes through a compensated attenuator switch and then into a 7586 cathode-follower biased with 2 mA plate current.
The gain stages use a mix of transistors and output stage driving the deflection plates is a transistor/pentode cascode circuit with T-coil loading.
The 3A1S is built in traditional ceramic-strip construction.
Pictures
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3A1S input amplifier and switching
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3A1S output amplifier
