132: Difference between revisions

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13 bytes added ,  7 July 2015
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The resulting vertical signal is available  
The resulting vertical signal is available  
on the front panel of the 132 either using  
on the front panel of the 132 either using  
[[Connectors#UHF|UHF connectors]] (early 132 versions) or
[[UHF connector]]s (early 132 versions) or
[[Connectors#BNC|BNC connectors]] (late 132 versions).   
[[BNC connector]]s (late 132 versions).   


The 132's power supply is similar to Tektronix oscilloscopes  
The 132's power supply is similar to Tektronix oscilloscopes  
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The rectifier diodes are solid state,  
The rectifier diodes are solid state,  
but the regulators are tube.   
but the regulators are tube.   
An [[OG3]] tube is used to generate a -150 reference voltage that is used
An [[OG3]] tube is used to generate a -150 Vreference voltage that is used
for all of the other regulated voltages.   
for all of the other regulated voltages.   
The +225V and +350V supplies are floating supplies stacked  
The +225 V and +350 V supplies are floating supplies stacked  
on top of the +189V unregulated DC that feeds the +100V supply.
on top of the +189 V unregulated DC that feeds the +100 V supply.
The 132 has a fan that is always on when the power is on,  
The 132 has a fan that is always on when the power is on,  
and a 137 degree fahrenheit [[thermal cutoff]] for the rest of the circuitry.
and a 137 degree fahrenheit [[thermal cutoff]] for the rest of the circuitry.


The differential front panel output of the 132 has an output impedance of about 5k per side.
The differential front panel output of the 132 has an output impedance of about 5 kΩ per side.
The gain and bandwidth of the entire system (plug-in + 132 + load) depend on the load impedance.
The gain and bandwidth of the entire system (plug-in + 132 + load) depend on the load impedance.
For exact gain, the 132 needs to be terminated with an exact impedance.
For exact gain, the 132 needs to be terminated with an exact impedance.
A load impedance of 50 ohms maximizes bandwidth and further reductions of load impedance
A load impedance of 50 Ω maximizes bandwidth and further reductions of load impedance
only reduce the available output swing.  A load impedance of 50k maximizes gain and further
only reduce the available output swing.  A load impedance of 50 kΩ maximizes gain and further
increases in load impedance have little effect on system performance.
increases in load impedance have little effect on system performance.


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==Pictures==
==Pictures==
<gallery>
<gallery>
Image:132tq.jpg|front view
File:132tq.jpg|front view
Image:132front.jpg|front inside
File:132front.jpg|front inside
Image:132right.jpg|right view
File:132right.jpg|right view
Image:132left.jpg|left view
File:132left.jpg|left view
Image:132bot1.jpg|bottom view
File:132bot1.jpg|bottom view
Image:132rear.jpg|rear view
File:132rear.jpg|rear view
File:Tek 132-amp schem.png|amplifier schematic
File:Tek 132-amp schem.png|amplifier schematic
File:Tek 132-multi-trace-sync schem.png|multi-trace sync schematic
File:Tek 132-multi-trace-sync schem.png|multi-trace sync schematic

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