132: Difference between revisions

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27 bytes added ,  12 December 2015
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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 Vreference voltage that is used
An [[OG3]] tube is used to generate a -150 V reference voltage that is used
for all of the other regulated voltages.   
for all of the other regulated voltages.   
The +225 V and +350 V supplies are floating supplies stacked  
The +225 V and +350 V supplies are floating supplies stacked  
on top of the +189 V unregulated DC that feeds the +100 V 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 °F (58 °C)  [[thermal cutoff]] for the rest of the circuitry.


The differential front panel output of the 132 has an output impedance of about 5 kΩ per side.
The differential front panel output of the 132 has an output impedance of about 5 kΩ per side.
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only reduce the available output swing.  A load impedance of 50 kΩ 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.
==Manuals==


* [http://w140.com/tek_132.pdf Tektronix 132 Manual (PDF)]
* [http://w140.com/tek_132.pdf Tektronix 132 Manual (PDF)]

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