1L5: Difference between revisions
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File:Tek 1l5 front.JPG|front | File:Tek 1l5 front.JPG|front | ||
File:Tek 1l5 bottom.JPG|bottom | File:Tek 1l5 bottom.JPG|bottom | ||
File:Tek 1l5 | File:Tek 1l5 block diagram.png|Block Diagram | ||
File:Tek 1l5 | File:Tek 1l5 attenuators and input.png|Attenuators and Input | ||
File:Tek 1l5 | File:Tek 1l5 center freq switching.png|Center Frequency Switching | ||
File:Tek 1l5 | File:Tek 1l5 swept freq gen.png|Swept Frequency Generator | ||
File:Tek 1l5 | File:Tek 1l5 var res amp.png|Variable Resolution Amplifier | ||
File:Tek 1l5 dispersion warning.png | File:Tek 1l5 dispersion warning.png|Dispertion Warning Light | ||
File:Tek 1l5 | File:Tek 1l5 output amp.png|Output Amplifier | ||
File:Tek 1l5 | File:Tek 1l5 calibrator.png|Calibrator | ||
File:Tek 1l5 | File:Tek 1l5 plug and power.png|Interconnecting Plug and Power Distribution | ||
</gallery> | </gallery> | ||
[[Category:Spectrum Analyzers]] | [[Category:Spectrum Analyzers]] | ||
[[Category:500 series plugins]] | [[Category:500 series plugins]] |
Revision as of 20:32, 28 May 2014
The Tektronix 1L5 is a low-frequency spectrum analyzer for 500-series scopes. It is very similar to the 3L5.
Its center frequency is set on a trio of rotary switches and can range from 50Hz to 990kHz. Minimum resolution bandwidth is 10Hz. It has a 1 meg input resistance.
Type 1L5 was sold from 1967 or 1968 until the end of the classic plug-in scope line after 1974. Not particularly accurate in either frequency, bandwidth, or amplitude, it was no match for HP's 141T/8556A/8552B combination in performance, but it was a small fraction of the price.
Although Type 1L5 can operate in any classic plug-in scope*, it is most useful by far in the Type 549 storage mainframe, where it's possible to sweep slowly with the narrower resolution bandwidths.
* 531/535/541/545 need a wiring mod to alleviate vertical amp instability.
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549 works fine with 1L5
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top
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right
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rear
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left
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front
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bottom
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Block Diagram
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Attenuators and Input
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Center Frequency Switching
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Swept Frequency Generator
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Variable Resolution Amplifier
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Dispertion Warning Light
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Output Amplifier
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Calibrator
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Interconnecting Plug and Power Distribution