3A9: Difference between revisions
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for use with, for example, the [[P6021]] or [[P6019]]. | for use with, for example, the [[P6021]] or [[P6019]]. | ||
The front-end of the 3A9 starts with a differential pair formed by the two N-channel JFETs in a [[151-1027-00]]. | The front-end of the 3A9 starts with a differential pair formed by the two N-channel JFETs in, a [[151-1027-00]], Q133. | ||
==Specifications== | ==Specifications== | ||
[[Category:Specifications needed]] | [[Category:Specifications needed]] | ||
Revision as of 15:48, 8 November 2015
Template:Plugin Sidebar 2 The Tektronix 3A9 is a differential amplifier plug-in introduced in 1969 for 560-series scopes. It shares similarities with the 7A22 from the 7000 series and 26A2 (2600 series).
The 3A9 features a variable high-frequency cut-off from 100 Hz to 1 MHz and a variable low-frequency cut-off from DC to 10 kHz. When DC coupled, the 3A9 provides a variable offset voltage. The common mode rejection is 100,000:1.
The 3A9 provides differential high-impedance voltage inputs and an AC current probe input for use with, for example, the P6021 or P6019.
The front-end of the 3A9 starts with a differential pair formed by the two N-channel JFETs in, a 151-1027-00, Q133.
Specifications
Pictures
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Preamp (front-end) schematic
