41,016
edits
127: Difference between revisions
Jump to navigation
Jump to search
no edit summary
No edit summary |
No edit summary |
||
| Line 1: | Line 1: | ||
The '''Tektronix Type 127''' "Preamplifier Power Supply", [[introduced in 1958]] and made until 1971, | {{Instrument Sidebar | ||
is a power supply, calibrator, and unity-gain preamplifier for two | |manufacturer=Tektronix | ||
[[letter-series and 1-series plug-ins|letter-series or 1-series plug-ins]]. | |model=127 | ||
|class=Power supply | |||
|series=500-series scopes | |||
|summary=Preamplifier Power Supply | |||
|image=127_front.JPG | |||
|caption=Tek 127 front view | |||
|introduced=1958 | |||
|discontinued=1972 | |||
|designers= | |||
|manuals= | |||
* [http://bama.edebris.com/download/tek/127/Tek%20127.pdf Tektronix 127 Manual (PDF)] | |||
* [http://w140.com/tek_fcp/tek_type_127_factory_cal_proc.pdf Tektronix 127 Factory Calibration Procedure (PDF)] | |||
* [http://w140.com/tek_127_1968_catalog.pdf Tektronix 127 in 1968 Catalog (PDF)] | |||
}} | |||
The '''Tektronix Type 127''' "Preamplifier Power Supply", [[introduced in 1958]] and made until 1971, is a power supply, calibrator, and unity-gain preamplifier for two [[letter-series and 1-series plug-ins|letter-series or 1-series plug-ins]]. | |||
It is a rack-mount unit with a power supply that resembles the power supply | It is a rack-mount unit with a power supply that resembles the power supply of an early [[500-series scopes|500-series oscilloscope]]: | ||
of an early [[500-series scopes|500-series oscilloscope]]: a 50/60 Hz transformer, | a 50/60 Hz transformer, [[selenium rectifiers]], a single voltage reference tube controlling all output voltages, and [[6080]] pass tubes for the regulated outputs. | ||
[[selenium rectifiers]], a single voltage reference tube controlling all output | |||
voltages, and [[6080]] pass tubes for the regulated outputs. | |||
The 127 targets applications where one wants to use Tektronix plug-ins as front-end amplifiers | The 127 targets applications where one wants to use Tektronix plug-ins as front-end amplifiers for other instrumentation. | ||
for other instrumentation. Since [[letter-series and 1-series plug-ins]] have relatively high | Since [[letter-series and 1-series plug-ins]] have relatively high output impedance, their outputs (i.e., differentially between pins 1 and 3 of the plug-in-to-scope interconnecting plug) are not suitable for directly driving long cables. | ||
output impedance, their outputs (i.e., differentially between pins 1 and 3 of the | |||
plug-in-to-scope interconnecting plug) are not suitable for directly driving long cables. | |||
The 127 provides 20 MHz unity gain amplifiers that can drive long cables and other low impedance loads. | The 127 provides 20 MHz unity gain amplifiers that can drive long cables and other low impedance loads. | ||
| Line 17: | Line 27: | ||
The 127 has unity gain if the output is taken differentially and the load on each output is 170 Ω. | The 127 has unity gain if the output is taken differentially and the load on each output is 170 Ω. | ||
The 127 is a 5U (8.75"/22.2cm) rackmount unit and weighs 37 pounds (16.9kg). | The 127 is a 5U (8.75"/22.2cm) rackmount unit and weighs 37 pounds (16.9kg). Maximum power consumption is 450 W. | ||
Maximum power consumption is 450 W. | |||
<gallery> | <gallery> | ||
| Line 36: | Line 45: | ||
</gallery> | </gallery> | ||
[[Category:Plugin power supplies]] | [[Category:Plugin power supplies]] | ||