3A1S: Difference between revisions
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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]]. | ||
{{BeginSpecs}} | {{BeginSpecs}} | ||
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{{Spec | Input impedance | 1 MΩ // 47 pF }} | {{Spec | Input impedance | 1 MΩ // 47 pF }} | ||
{{EndSpecs}} | {{EndSpecs}} | ||
==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-coli loading. | |||
The 3A1S is built in traditional ceramic-strip construction. | |||
==Pictures== | ==Pictures== | ||
Revision as of 01:51, 10 December 2015
Template:Plugin Sidebar 2 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-coli 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
