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The Tektronix 1L5 is a low-frequency spectrum analyzer for [[500-series scopes]]. | {{Plugin Sidebar 2 | | ||
title=Tektronix 1L5 | | |||
summary=1 MHz Spectrum Analyzer | | |||
image=Tek 1l5 front.JPG | | |||
caption=Tektronix 1L5 | | |||
series=[[500-series scopes]] | | |||
introduced=1967 | | |||
discontinued=1975 | | |||
manuals= | |||
* [http://bama.edebris.com/download/tek/1l5/Tek%201L5_v6.pdf Tektronix 1L5 Manual (PDF)] | |||
}} | |||
The '''Tektronix 1L5''' is a low-frequency spectrum analyzer for [[500-series scopes]]. | |||
It is very similar to the [[3L5]]. | It is very similar to the [[3L5]]. | ||
Its center frequency is set on a trio of rotary switches and can range from | 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 | Type 1L5 was sold from 1967 until the end of the classic plug-in scope | ||
line | line. Not particularly accurate in either frequency, bandwidth, | ||
or amplitude, it was no match for HP's 141T/8556A/8552B combination in performance, | or amplitude, it was no match for HP's 141T/8556A/8552B combination in performance, | ||
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 | 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. | |||
<nowiki>*</nowiki> [[531]]/[[535]]/[[541]]/[[545]] need a wiring mod | <nowiki>*</nowiki> [[531]]/[[535]]/[[541]]/[[545]] need a wiring mod | ||
to alleviate vertical amp instability. | to alleviate vertical amp instability. | ||
==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:500 series plugins]] |