1L5: Difference between revisions
David Wise (talk | contribs) m (discontinued 1975 not 74, introduced 1967) |
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but it was a small fraction of the price. | but it was a small fraction of the price. | ||
Although Type 1L5 can operate in any | Although Type 1L5 can operate in any 500-series scope*, | ||
in the Type [[549]] storage mainframe which allows slow | it is most useful by far in the Type [[549]] storage mainframe | ||
sweeps needed to match the narrower resolution bandwidths. | which allows slow sweeps needed to match the narrower resolution bandwidths. | ||
In conjunction with the [[015-0107-00]] "Swept Frequency Generator" (tracking generator), the 1L5 can also measure frequency response. | In conjunction with the [[015-0107-00]] "Swept Frequency Generator" (tracking generator), | ||
the 1L5 can also measure frequency response. | |||
<nowiki>*</nowiki> [[531]]/[[535]]/[[541]]/[[545]] need a wiring mod | <nowiki>*</nowiki> [[531]]/[[535]]/[[541]]/[[545]] need a wiring mod | ||
Line 32: | Line 33: | ||
==Pictures== | ==Pictures== | ||
<gallery> | <gallery> | ||
Tek 1l5 1.jpg | |||
Tek 1l5 2.jpg | |||
Tek 1l5 3.jpg | |||
Tek 1l5 4.jpg | |||
Tek 1l5 5.jpg | |||
549_1L5.JPG| 549 works fine with 1L5 | |||
Tek 1l5 top2.JPG|top | |||
Tek 1l5 right.JPG|right | |||
Tek 1l5 rear.JPG|rear | |||
Tek 1l5 left.JPG|left | |||
Tek 1l5 front.JPG|front | |||
Tek 1l5 bottom.JPG|bottom | |||
Tek 1l5 2409.jpg|1L5 | |||
Tek 1l5 block diagram.png|Block Diagram | |||
Tek 1l5 attenuators and input.png|Attenuators and Input | |||
Tek 1l5 center freq switching.png|Center Frequency Switching | |||
Tek 1l5 swept freq gen.png|Swept Frequency Generator | |||
Tek 1l5 var res amp.png|Variable Resolution Amplifier | |||
Tek 1l5 dispersion warning.png|Dispertion Warning Light | |||
Tek 1l5 output amp.png|Output Amplifier | |||
Tek 1l5 calibrator.png|Calibrator | |||
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 08:25, 4 February 2018
Template:Plugin Sidebar 2 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 50 Hz to 990 kHz. Minimum resolution bandwidth is 10 Hz. It has a 1 MΩ input resistance.
Type 1L5 was sold from 1967 until the end of the classic plug-in scope line. 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 500-series scope*, it is most useful by far in the Type 549 storage mainframe which allows slow sweeps needed to match the narrower resolution bandwidths.
In conjunction with the 015-0107-00 "Swept Frequency Generator" (tracking generator), the 1L5 can also measure frequency response.
* 531/535/541/545 need a wiring mod to alleviate vertical amp instability.
Pictures
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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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1L5
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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