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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== | ||