|
|
| (4 intermediate revisions by the same user not shown) |
| Line 1: |
Line 1: |
| {{Plugin Sidebar
| | #redirect[[067-0500-00]] |
| |manufacturer=Tektronix
| |
| |series=560-series scopes
| |
| |type=067-0500-00
| |
| |summary=calibration fixture
| |
| |image=3M1_F.JPG
| |
| |caption=3M1 Front
| |
| |introduced=(?)
| |
| |discontinued=(?)
| |
| |designers=
| |
| |manuals=
| |
| * [[Media:062-0806-00.pdf|Tektronix 067-0500-00 Manual (-00)]] (OCR)
| |
| * [[Media:062-0806-01.pdf|Tektronix 067-0500-00 Manual (-01)]]
| |
| }}
| |
| The '''Tektronix 3M1''' (first designated the 067-050, then the 067-0050-00) is a calibration fixture for adjusting the normalizing capacitor behind the plug-in connector in [[560-series scopes | 560-Series scopes]].
| |
| | |
| It consists of a Schmitt trigger that is driven from a single-ended input coming from a BNC connector on the front panel.
| |
| The Schmitt trigger produces balanced output signals with controlled source impedance.
| |
| The normalizing capacitor in the scope mainframe is adjusted using a procedure similar to adjusting probe compensation.
| |
| When adjusted correctly, the voltage division ratio formed by the plug-in's output impedance and the mainframe's input impedance should be a real value which does not change across the specified frequency range of the scope.
| |
| After the scope is normalized using the 3M1, other plug-ins can be adjusted to produce clean transient response in the normalized scope.
| |
| | |
| 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.
| |
| | |
| ==067-050==
| |
| <gallery>
| |
| 067-500 1a.jpg
| |
| 067-500 3.jpg
| |
| 067-500 5a.jpg
| |
| </gallery>
| |
| | |
| ==067-0050-00==
| |
| <gallery>
| |
| 067-0500-00_front.jpg
| |
| 067-0500-00_schem.jpg
| |
| 067-0500-00_insides.jpg
| |
| </gallery>
| |
| | |
| ==3M1==
| |
| <gallery>
| |
| 3M1_F.JPG | 3M1 Front
| |
| 3M1_PCB.JPG | 3M1 Circuit Board (note added resistor)
| |
| 3M1_SCH.JPG | 3M1 Schematic (added resistor on the left0
| |
| </gallery>
| |
|
| |
|
| [[Category:Calibration fixtures]] | | [[Category:Calibration fixtures]] |
| [[Category:560 series plugins]] | | [[Category:560 series plugins]] |