3M1: Difference between revisions

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Note that C131 and C136, on the printed circuit board, were set at the factory and should never be touched.
Note that C131 and C136, on the printed circuit board, were set at the factory and should never be touched.


Each of these plugins requires 50 to 100 V square wave pulses to drive the Schmidt trigger, but only the earliest members of the [[560-series scopes | 560-Series scopes]] have a calibrator output that will go that high. The 3M1 pictured has been modified to work with 40 V pulses. See the Repair tab for details.
Each of these plugins requires 50 to 100 V square wave pulses to drive the Schmidt trigger, but only the earliest members of the [[560-series scopes | 560-Series scopes]] have a calibrator output that will go that high. The 3M1 pictured below has been modified to work with 40 V pulses. See the Repair tab for details.


==067-050==
==067-050==
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