127: Difference between revisions

127 (view source)

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 The 127 targets applications where one wants to use Tektronix plug-ins
 as front-end amplifiers for other instrumentation.
-[[letter-series and 1-series plug-ins]] have relatively high output impedance.
+Since [[letter-series and 1-series plug-ins]] have relatively high output impedance,
-The 127 provides 20MHz unity gain amplifiers that can drive low impedance loads such as long
+their outputs
-coaxial cables.  Each of the two amplifiers in the 127 is fully differential and outputs are on
+(i.e., differentially between pins 1 and 3 of the plug-in-to-scope interconnecting plug)
-the front and rear panels.
+are not suitable for directly driving long cables.
-The 127 has unity gain if the output is taken differentially and each output
+The 127 provides 20MHz unity gain amplifiers that can
-is terminated in 170 ohms.
+drive long cables and other low impedance loads.
+Each of the two amplifiers in the 127 is fully differential and
+outputs are on the front and rear panels.
+The 127 has unity gain if the output is taken differentially and
+the load on each output is 170 ohms.
 The 127 is a 5U (8.75"/22.2cm) rackmount unit and weighs 37 pounds (16.9kg).