132: Difference between revisions
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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 5k per side. | ||
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. | |||
A load impedance of 50 ohms maximizes bandwidth and further reductions of load impedance | |||
only reduce the available output swing. A load impedance of 50k maximizes gain and further | |||
increases in load impedance have little effect on system performance. | |||
* [http://w140.com/tek_132.pdf Tektronix 132 Manual (PDF)] | * [http://w140.com/tek_132.pdf Tektronix 132 Manual (PDF)] | ||