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11A71: Difference between revisions
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The 11A71 is derived from the [[7A29]]. | The 11A71 is derived from the [[7A29]]. | ||
However, the 7A29 has a VARIABLE gain control | |||
while the 11A71 does not. | |||
The 11A71 only the 1-2-5 gain sequence. | |||
The 7A29 and 11A71 have the same Gilbert cell at the front end, but in the 11A71 it is only used for automatic calibration, not for fine gain control. | |||
This is a feature regression, but it avoids an issue that the 7A29 has: | |||
the bandwidth of the 7A29 varies depending on the setting of the VARIABLE gain. | |||
{{BeginSpecs}} | {{BeginSpecs}} | ||
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Tektronix_11A71_Schematic_3_Amplifier.jpg|Amplifier | Tektronix_11A71_Schematic_3_Amplifier.jpg|Amplifier | ||
Tektronix_11A71_Schematic_4_Interface.jpg|Interface | Tektronix_11A71_Schematic_4_Interface.jpg|Interface | ||
Tek 11a71 left internal.jpg | |||
Tek 11a71 right internal.jpg | |||
</gallery> | </gallery> | ||