11A71

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Tektronix 11A71
Single channel 1 GHz amplifier
Tek 11A71

Compatible with 11000-series scopes

Produced from 1987 to (?)

Manuals
Manuals – Specifications – Links – Pictures

The Tektronix 11A71 a single-channel 1 GHz amplifier for 11000-series scopes.

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.

Specifications

Bandwidth DC to 1 GHz
Number of Inputs 1
Rise time 350 ps in 1 GHz mainframe such as the 11402, 11402A. 11403, 11403A, DSA601A, or DSA602A
Deflection 1 mV/Div to 1 V/Div in 1−2−5 sequence
Input impedance 50 Ω via a Tekprobe BNC connector on the front on the plug-in
Features
  • Input 5 VRMS overload protected with manual reset

Internals

Custom Tek chips used: 155-0180-00, 155-0181-00, 155-0175-00, 155-0076-00, ...

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