1L5: Difference between revisions

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The Tektronix 1L5 is a low-frequency spectrum analyzer for [[500-series scopes]].
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 50Hz to
Its center frequency is set on a trio of rotary switches and can range from 50 Hz to
990kHz.  Minimum resolution bandwidth is 10Hz.  It has a 1 meg input resistance.
990 kHz.  Minimum resolution bandwidth is 10 Hz.  It has a 1 MΩ input resistance.


Type 1L5 was sold from 1967 or 1968 until the end of the classic plug-in scope
Type 1L5 was sold from 1967 or 1968 until the end of the classic plug-in scope
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Although Type 1L5 can operate in any classic plug-in scope*, it is most useful by far
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
in the Type [[549]] storage mainframe which allows slow
sweep slowly with the narrower resolution bandwidths.   
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.


==Manuals==
* [http://bama.edebris.com/download/tek/1l5/Tek%201L5_v6.pdf Tektronix 1L5 Manual (PDF)]
* [http://bama.edebris.com/download/tek/1l5/Tek%201L5_v6.pdf Tektronix 1L5 Manual (PDF)]


==Pictures==
<gallery>
<gallery>
Image:Tek 1l5 1.jpg
Image:Tek 1l5 1.jpg

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