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132: Difference between revisions
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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 | ||
[[ | [[UHF connector]]s (early 132 versions) or | ||
[[ | [[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 | 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 + | The +225 V and +350 V supplies are floating supplies stacked | ||
on top of the + | 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 | 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 | A load impedance of 50 Ω maximizes bandwidth and further reductions of load impedance | ||
only reduce the available output swing. A load impedance of | 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> | ||
File:132tq.jpg|front view | |||
File:132front.jpg|front inside | |||
File:132right.jpg|right view | |||
File:132left.jpg|left view | |||
File:132bot1.jpg|bottom 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 | ||