3A1: Difference between revisions

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* [http://bama.edebris.com/download/tek/3a1/3a1.djvu Tektronix 3A1 Manual (DJVU)]
* [http://bama.edebris.com/download/tek/3a1/3a1.djvu Tektronix 3A1 Manual (DJVU)]
* [[Media:Tek 3a1 Manual.pdf| Tektronix 3A1 Manual (PDF)]]
* [[Media:Tek 3a1 fcp nov 1963.pdf|Tektronix 3A1 Factory Calibration Procedure, November 1963‎]]
* [[Media:Tek 3a1 fcp nov 1963.pdf|Tektronix 3A1 Factory Calibration Procedure, November 1963‎]]
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Revision as of 18:52, 6 July 2021

Template:Plugin Sidebar 2 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